4-129-783-11(3)

Multi Channel AV Receiver
Operating Instructions STR-DH700

2009 Sony Corporation

WARNING
To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
To reduce the risk of fire, do not cover the ventilation opening of the apparatus with newspapers, tablecloths, curtains, etc. Do not place the naked flame sources such as lighted candles on the apparatus. Do not install the appliance in a confined space, such as a bookcase or built-in cabinet. To reduce the risk of fire or electric shock, do not expose this apparatus to dripping or splashing, and do not place objects filled with liquids, such as vases, on the apparatus. As the main plug is used to disconnect the unit from the mains, connect the unit to an easily accessible AC outlet. Should you notice an abnormality in the unit, disconnect the main plug from the AC outlet immediately. Do not expose batteries or apparatus with batteryinstalled to excessive heat such as sunshine, fire or the like. The unit is not disconnected from the mains as long as it is connected to the AC outlet, even if the unit itself has been turned off. Excessive sound pressure from earphones and headphones can cause hearing loss.
For customers in the United States

Owners Record

The model and serial numbers are located on the rear of the unit. Record these numbers in the space provided below. Refer to them whenever you call upon your Sony dealer regarding this product. Serial No. Model No. This symbol is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
Important Safety Instructions
1) 2) 3) 4) 5) 6) 7) Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturers instructions. 8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10)Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. 11)Only use attachments/accessories specified by the manufacturer.
For customers in the United States and Canada
This symbol is intended to alert the user to the presence of the Hot Surface that may be hot if it is touched during the normal operation. ENERGY STAR is a U.S. registered mark. As an ENERGY STAR partner, Sony Corporation has determined that this product meets the ENERGY STAR guidelines for energy efficiency.
12)Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

CAUTION

You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this equipment. To reduce the risk of electric shock, the speaker cord should be connected to the apparatus and the speakers in accordance with the following instructions. 1) Disconnect the AC power cord from the MAINS. 2) Strip 10 to 15 mm of the wire insulation of the speaker cord. 3) Connect the speaker cord to the apparatus and the speakers carefully so as not to touch the core of speaker cord by hand. Also disconnect the AC power cord from the MAINS before disconnecting the speaker cord from the apparatus and the speakers.

The measurement process will take a few minutes to complete. The table below shows the display when measurement starts.

Measurement for Display

?/1 switch Input buttons

VIDEO1

VIDEO2

Environment noise level

NOISE.CHK
Speaker connection MEASURE and SP DET. appears alternately*

AUTO CAL AMP MENU MUTING

Speaker level Speaker distance
MEASURE and GAIN appears alternately* MEASURE and DISTANCE appears alternately*
* The corresponding speaker indicator lights up in the display during measurement.

MASTER VOL +/

O RETURN/EXIT MENU/HOME

Measurement ends.

COMPLETE appears on the display and the settings are registered.
Press AMP MENU. Press AUTO CAL.
Measurement starts in 5 seconds and the display changes as follows: A.CAL [5] t A.CAL [4] t A.CAL [3] t A.CAL [2] t A.CAL [1] While the time is counting down, stand away from the measurement area to avoid measurement error.

When you have finished

Disconnect the optimizer microphone from the AUTO CAL MIC jack. Notes
Auto Calibration cannot detect the subwoofer. Therefore, all subwoofer settings will be maintained. If you have changed the position of the speakers, it is recommended that you perform Auto Calibration again in order to enjoy the surround sound.
When Auto Calibration starts: Stand some distance from the speakers and the listening position to avoid measurement failure. This is because test signals are output from the speakers during measurement. Avoid making noise to get a more accurate measurement. The Auto Calibration function will be canceled when you do the following during the measurement process: Press ?/1 or MUTING. Press the input buttons or turn the INPUT SELECTOR on the receiver. Change the volume level. Connect the headphones. Press AUTO CAL again.

Error codes and remedies

Error code ERROR 10 Cause and remedy
The environment is too noisy. Make sure the environment is quiet during Auto Calibration. The speakers are placed too near the optimizer microphone. Place your speakers further away from the optimizer microphone. None of the speakers are detected. Make sure that the optimizer microphone is connected properly and perform Auto Calibration again. Front speakers are not detected or only one front speaker is detected. Check the front speakers connection. Only one surround speaker is detected. Check the surround speakers connection. The surround back speaker is connected only to the SPEAKERS SURROUND BACK/BI-AMP/ FRONT B R terminals. When you connect only one surround back speaker, connect it to the SPEAKERS SURROUND BACK/ BI-AMP/FRONT B L terminals. Surround back speaker is detected but surround speakers are not connected. Be sure to connect the surround speakers.

details, refer Front speaker distance (page 53). d) For details, refer Tip on page 54.

WARN. 60

WARN. 62

WARN. 63

WARN. 64

WARN. 65

WARN. 66

WARN. 70

WARN. 72

WARN. 73

WARN. 74
5 9: Adjusting the speaker levels and balance

(TEST TONE)

You can adjust the speaker levels and balance while listening to the test tone from your listening position. Tip
The receiver employs a test tone with a frequency centered at 800 Hz.
Press V/v repeatedly to select T. TONE Y.
The test tone is output from each speaker in sequence as follows: Front left t Center t Front right t Surround right t Surround back right* t Surround back left* t Surround left t Subwoofer
* You will only hear the test tone from the surround back left and right speakers when surround back speakers are set to DUAL. surround back left speaker when surround back speakers are set to SINGLE.

?/1 DVD

Input buttons
Adjust the speaker levels and balance using the LEVEL menu so that the level of the test tone sounds the same from each speaker.
For details, see Adjusting the level (LEVEL menu) (page 45). Tips
To adjust the level of all speakers at the same time, press MASTER VOL +/. You can also use MASTER VOLUME on the receiver. The adjusted value is shown on the display during adjustment.

AMP MENU

Repeat steps 1 to 5 to select T. TONE N.
You can also press any input buttons. The test tone turns off.

, V/v/B/b

Press AMP MENU.
1-LEVEL appears on the display.
When a test tone is not output from the speakers
The speaker cords may not be connected securely. The speaker cords may have the short-circuit problem. Note
The test tone does not work when ANALOG DIRECT is selected.

Press menu.

or b to enter the
Press V/v repeatedly to select T. TONE. Press or b to enter the parameter.
Selected input [Display] SAT [SAT] TV [TV]

By using the amplifier menus, you can make various adjustments to customize the receiver.

To exit the menu

Press AMP MENU. Note
Some parameters and settings may appear dimmed on the display. This means that they are either unavailable or fixed and unchangeable.
RETURN/EXIT MENU/HOME TV CH CATEGORY + TV CH + PRESET REPLAY ADVANCE PRESET + < <. >
Press V/v repeatedly to select the menu you want. Press menu. or b to enter the
Press V/v repeatedly to select the parameter you want to adjust. Press or b to enter the parameter. Press V/v repeatedly to select the setting you want.
The setting is entered automatically.

Overview of the menus

The following options are available in each menu. For details on navigating through menus, see page 40.
Menu [Display] LEVEL [1-LEVEL] (page 45) Parameters [Display] Test tonea) [T. TONE] Front speaker balance [FRT BAL] Center speaker level [CNT LVL] Surround left speaker level [SL LVL] Surround right speaker level [SR LVL] Surround back speaker levelb) [SB LVL] Surround back left speaker levelc) [SBL LVL] Surround back right speaker levelc) [SBR LVL] Subwoofer level [SW LVL] Dynamic range compressor a) [D. RANGE] EQ [2-EQ] (page 46) Equalizer on/off a) [EQ] Front speaker bass level [BASS LVL]
Settings T. TONE N, T. TONE Y
Initial setting T. TONE N
BAL. L +1 to BAL. L +8, BALANCE, BALANCE BAL. R +1 to BAL. R +8 CNT 10 dB to CNT +10 dB (1 dB step) SUR L 10 dB to SUR L +10 dB (1 dB step) SUR R 10 dB to SUR R +10 dB (1 dB step) SB 10 dB to SB +10 dB (1 dB step) SBL 10 dB to SBL +10 dB (1 dB step) SBR 10 dB to SBR +10 dB (1 dB step) SW 10 dB to SW +10 dB (1 dB step) COMP. OFF, COMP. STD, COMP. MAX EQ OFF, EQ ON BASS 6 dB to BASS +6 dB (1 dB step) TRE 6 dB to TRE +6 dB (1 dB step) For details, see Enjoying Surround Sound (page 56). SB OFF, SB AUTO, SB ON EFCT. MIN, EFCT. STD, EFCT. MAX CNT 0 dB SUR L 0 dB SUR R 0 dB SB 0 dB SBL 0 dB SBR 0 dB SW 0 dB COMP. OFF EQ OFF BASS 0 dB TRE 0 dB A.F.D. AUTO SB AUTO EFCT. STD
Front speaker treble levela) [TRE LVL] SUR [3-SUR] (page 46) Sound field selectiona) [S.F. SELCT] Surround back decoding modea) [SB DEC] Effect levela) [EFFECT]
Menu [Display] TUNER [4-TUNER] (page 48)
Parameters [Display] FM station receiving modea) [FM MODE] Naming preset stationsa) [NAME IN] Parental locka)d) [PARENTAL] Lock code edita)d) [CODE EDT.] SIRIUS antenna aiming modea)d) [SR ANT] SIRIUS radio IDa)d) [SR ID]
Settings FM AUTO, FM MONO For details, see Naming preset stations (page 65). OFF, ON For details, see Restricting access to specific channels (Parental Lock) (SIRIUS only) (page 72). For details, see Checking receiving conditions (SIRIUS Antenna Aiming) (page 68). For details, see Checking the SIRIUS Radio ID (page 67). DEC. PCM, DEC. AUTO

Initial setting FM AUTO

* You cannot select this decoding mode if the surround back speakers are set to NO.
If you connect a subwoofer
This receiver will generate a low frequency signal for output to the subwoofer when there is no LFE signal, which is a low-pass sound effect output from a subwoofer to a 2 channel signal. However, the low frequency signal is not generated for NEO6 CIN or NEO6 MUS when all speakers are set to LARGE. Notes
This function does not work when ANALOG DIRECT is selected. Dolby Pro Logic IIx decoding does not function for DTS format signals or for signals with a sampling frequency of more than 48 kHz.
Selecting a preprogrammed sound field
You can take advantage of surround sound simply by selecting one of the receivers preprogrammed sound fields. They bring the exciting and powerful sound of movie theaters and concert halls into your home.

SAT TV SA-CD/CD TUNER

When a multi channel signal is input, only Dolby Pro Logic IIx decoding is effective. When you select decoding modes other than Dolby Pro Logic IIx, multi channel sound (being encoded) is output.

AUTO CAL D.TUNING D.SKIP

Press MOVIE repeatedly to select a sound field for movies or press MUSIC repeatedly to select a sound field for music.
For details, see Types of sound field available (page 59).
Types of sound field available
Sound field for Movie Sound field [Display] CINEMA STUDIO EX A DCS [C.ST.EX A] Effect Reproduces the sound characteristics of the Sony Pictures Entertainment Cary Grant Theater cinema production studio. This is a standard mode, great for watching almost any type of movie. Reproduces the sound characteristics of the Sony Pictures Entertainment Kim Novak Theater cinema production studio. This mode is ideal for watching science-fiction or action movies with lots of sound effects. Reproduces the sound characteristics of the Sony Pictures Entertainment scoring stage. This mode is ideal for watching musicals or films where orchestra music is featured in the soundtrack. Reproduces the acoustics of a classical concert hall. Reproduces the acoustics of a jazz club. Reproduces the acoustics of a 300-seat live house. Reproduces the feeling of a large open-air stadium. Reproduces the feeling of sports broadcasting.
CINEMA STUDIO EX B DCS [C.ST.EX B]
CINEMA STUDIO EX C DCS [C.ST.EX C]

Resetting sound fields to the initial settings
Be sure to use the buttons on the receiver for this operation.

2CH/A.DIRECT

Press ?/1 to turn off the power. While holding down 2CH/ A.DIRECT, press ?/1.
S.F. CLR. appears on the display and all sound fields are reset to their initial setting.

Sound field buttons

Turn INPUT SELECTOR on the receiver to select the input you want to listen to in analog audio.
You can also use the input buttons on the remote.
Press 2CH/A.DIRECT repeatedly on the receiver to select A.DIRECT.
The analog audio is output.

To cancel ANALOG DIRECT

Press 2CH/A.DIRECT on the receiver again. You can also press any sound field buttons. Notes
When headphones are connected, HP DIR appears on the display. This function is not available when DMPORT and DVD input is selected.

Listening to FM/AM radio

You can listen to FM and AM broadcasts through the built-in tuner. Before operation, make sure you have connected the FM and AM antennas (aerials) to the receiver (page 28). Tip
The tuning scale for direct tuning differs depending on the area code as shown in the following table. For details on area codes, see page 4. Area code U, CA FM 100 kHz AM 10 kHz*
Tuning into a station automatically (Automatic Tuning)
Press TUNER repeatedly to select the FM or AM band. Press TUNING + or TUNING.
Press TUNING + to scan from low to high; press TUNING to scan from high to low. The receiver stops scanning whenever a station is received.
Using the controls on the receiver
1 Turn INPUT SELECTOR to select the FM

or AM band.

* The AM tuning scale can be changed (page 63).
2 Press TUNING MODE repeatedly to select

AUTO T.

2CH A.F.D. MOVIE MUSIC SAT TV SA-CD/CD TUNER
3 Press TUNING + or TUNING.

Numeric buttons

In case of poor FM stereo reception
If the FM stereo reception is poor and ST flashes on the display, select monaural audio so that the sound will be less distorted. Press FM MODE repeatedly until the MONO indicator lights up on the display. To return to stereo mode, press FM MODE repeatedly until the MONO indicator on the display does not light up.

AUTO CAL D.TUNING

D.TUNING
D.SKIP MEMORY AMP MENU ENTER TOOLS/ OPTIONS
O RETURN/EXIT MENU/HOME TV CH CATEGORY + TV CH + PRESET REPLAY ADVANCE PRESET + < <. >

TUNING +/

TUNING m TV

FM MODE

Tuning into a station directly (Direct Tuning)
Enter the frequency of a station directly by using the numeric buttons.
Changing the AM tuning scale
(Models of area code U, CA only)
You can change the AM tuning scale to either 9 kHz or 10 kHz using the buttons on the receiver.

The channel information you have preset may be changed if Sirius XM Radio Inc. change their channel programming.
Repeat steps 2 to 5 to preset another channel.
You can store channels from 1 to 30.
5 Restricting access to specific channels (Parental Lock) (SIRIUS only)
You can restrict access to certain channels using your own lock code. The lock code is set to 0000 as the default. Change the lock code before you use this function for the first time. See To change the lock code (Lock Code) (page 72).
Press V/v repeatedly to select PARENTAL. Press or b to enter the parameter. Press V/v repeatedly to select ON, then press.
LOCK appears on the display.
Enter your 4-digit lock code using the numeric buttons.
LOCKED appears on the display and the Parental Lock is set. To delete the numbers you have entered, repeat the procedure above from step 3. Select OFF in step 8.
To change the lock code (Lock Code) 1 Press TUNER repeatedly to select
SIRIUS. You can also use INPUT SELECTOR on the receiver.

2 Press AMP MENU.

3 Press V/v repeatedly to select

4-TUNER.

4 Press

or b to enter the menu.

5 Press V/v repeatedly to select CODE 6 Press
or b to enter the parameter. CODE appears on the display.
Select a channel you want to lock using Category Tuning (page 69) or Direct Tuning (page 70). Press AMP MENU.
7 Enter your 4-digit lock code using the
numeric buttons. NEW appears on the display.
8 Enter a new 4-digit lock code using the
numeric buttons. CONF. appears on the display.
Press V/v repeatedly to select 4-TUNER.
9 Reenter the new lock code with the
numeric buttons. CHANGED appears on the display.
10Enter your 4-digit lock code using the
numeric buttons. UNLOCKED appears on the display. Notes
When you select a channel using Category Tuning, locked channels are skipped. When the receiver is reset to the factory settings, the lock code returns to the default (0000), but the Parental Lock settings are not removed. You cannot preset locked channels. If you set the Parental Lock for a preset channel, the preset information for that channel returns to the default. You cannot set the Parental Lock for channel 0 or channel 184.
To listen to the locked channels 1 Press TUNER repeatedly to select
2 Select a locked channel you want to
listen using Direct Tuning (page 70). LOCKED appears on the display.
3 Enter your 4-digit lock code using the
numeric buttons. The channel is tuned in. Tuner Operations
To cancel the Parental Lock 1 Press TUNER repeatedly to select

3 Use the screws that you removed from
step 1 to fasten the wireless transmitter.

-T10 EZW 0

Do not use other screws to fasten the wireless transmitter.
To insert the wireless transceiver into the S-AIR sub unit
For details on installing the wireless transceiver into surround amplifier and S-AIR receiver, refer to the operating instructions supplied with the surround amplifier and S-AIR receiver.
To set the ID of the S-AIR main unit 1 Press AMP MENU.
2 Press V/v repeatedly to select

9- S-AIR.

3 Press

SETUP.

4 Press V/v repeatedly to select ID 5 Press
6 Press V/v repeatedly to select the ID
(A, B or C) you want, then press
To set the ID of the S-AIR sub unit
Be sure to match the ID on S-AIR sub unit you want to the S-AIR main unit. For details on setting the ID of the surround amplifier and S-AIR receiver, refer to the operating instructions supplied with the surround amplifier and S-AIR receiver. Sound transmission is established as follows (example):
S-AIR main unit Other S-AIR main unit
Pairing the S-AIR main unit with a specific S-AIR sub unit (Pairing operation)
To establish sound transmission, you need to set the same ID for your S-AIR main unit and S-AIR sub unit. However, if your neighbors have S-AIR products and their IDs are the same as yours, your neighbors could receive the sound of your S-AIR main unit or vice versa. To prevent this, you can pair the S-AIR main unit with a specific S-AIR sub unit by performing the pairing operation.

x Before pairing

Sound transmission is established by the ID (example).

S-AIR sub unit

Your room S-AIR main unit

Neighbor

Sources with copyright protection may not be playable on S-AIR sub unit. When sound transmission is established sound can only be output from the S-AIR receiver if you connect the components to this receiver via the analog jacks. The sound cannot be output if the components are connected to the COAXIAL, OPTICAL or HDMI jacks on this receiver. the headphones function on the surround amplifier is not available.

x After pairing

Sound transmission is established between the paired S-AIR main unit and S-AIR sub unit(s) only.
Your room S-AIR main unit Neighbor
Press V/v repeatedly to select the setting you want, then press.
START: The S-AIR main unit starts pairing. SEARCH flashes on the display. STATUS: You can check the current ID. When the pairing setting is not made, NO PAIR appears on the display.

No transmission

Start pairing of the S-AIR sub unit. x For the surround amplifier
Refer to the operating instructions supplied with the surround amplifier.

Pairing

x For the S-AIR receiver
Refer to the operating instructions supplied with the S-AIR receiver.
Place the S-AIR sub unit that you want to pair near the S-AIR main unit. Match the IDs of the S-AIR main unit and the S-AIR sub unit.
To set the ID of the S-AIR main unit, see To set the ID of the S-AIR main unit (page 82). To set the ID of the S-AIR sub unit, refer to the operating instructions supplied with the S-AIR sub unit.

10 Pairing completed.

COMPLETE appears on the display.
Perform the pairing within several minutes after step 8. Otherwise, the pairing is canceled automatically and ERROR appears on the display.

To cancel pairing

Reset the ID of the S-AIR main unit. For details, see To set the ID of the S-AIR main unit (page 82). You can select the same ID as before.
Press V/v repeatedly to select 9- S-AIR. Press menu. or b to enter the
Press V/v repeatedly to select PAIRING. Press or b to enter the parameter.
Enjoying the systems sound in another room
(For the S-AIR receiver only (not supplied)) You can enjoy the systems sound in another room by using the S-AIR receiver. The S-AIR receiver can be installed anywhere, regardless of the location of the S-AIR main unit. For details of the S-AIR receiver, refer to the operating instructions supplied with the S-AIR receiver.
When you are using another S-AIR sub unit, such as a surround amplifier, do not change the ID of the S-AIR main unit. Set the ID of the S-AIR receiver to match the ID of the S-AIR main unit. When you pair the S-AIR main unit and another S-AIR sub unit, such as a surround amplifier, you also need to pair the S-AIR main unit and the S-AIR receiver. For details, see Pairing the S-AIR main unit with a specific S-AIR sub unit (Pairing operation) (page 83).
Press V/v repeatedly to select MODE. Press or b to enter the parameter. Press V/v repeatedly to select the setting you want.
PARTY: The S-AIR receiver outputs sound according to the input selected on the S-AIR main unit. However, if DVD is selected on S-AIR main unit, S-AIR receiver remains as the last selected input. SEPARATE: You can select the input you want for the S-AIR receiver while the input of the S-AIR main unit remain unchanged. Note

When TUNER (FM/AM band) is selected on the S-AIR main unit, you can only select the same band for the tuner on the S-AIR receiver. However, you can select input other than TUNER on the S-AIR receiver.
Set the ID of the S-AIR receiver to match the ID of the S-AIR main unit.
To set the ID of the S-AIR main unit, see To set the ID of the S-AIR main unit (page 82). To set the ID of the S-AIR receiver, refer to the operating instructions supplied with the S-AIR receiver.
Adjust the volume on the S-AIR receiver.
The sound of the S-AIR receiver may be cut off by operation of the S-AIR main unit.
Changing the channel for better sound transmission
If you use multiple wireless systems which sharing the 2.4 GHz band, such as wireless LAN or Bluetooth, the transmission of S-AIR products or other wireless systems may be unstable. In this case, you may improve the transmission by changing the RF SETUP setting.
Press V/v repeatedly to select RF SETUP. Press or b to enter the parameter.
Press V/v repeatedly to select the setting you want.
RF AUTO: Normally select this. The system changes RF SETUP to RF ON or RF OFF automatically. RF ON: The system transmits sound by searching the better channel for transmitting. RF OFF: The system transmits sound by fixing the channel for transmitting.
Enjoying the S-AIR receiver while the S-AIR main unit is in standby mode
(For the S-AIR receiver only (not supplied)) You can enjoy the S-AIR receiver while the S-AIR main unit is in standby mode by setting STANDBY to STBY ON.

Press AMP MENU. Notes

When the wireless transmitter is not inserted in the S-AIR main unit, you cannot set RF SETUP. In most cases, you will not need to change this setting. If RF SETUP is set to RF OFF, transmission between the S-AIR main unit and S-AIR sub unit can be performed using one of the following channels. S-AIR ID A: equivalent channel for Wi-Fi channel 1 S-AIR ID B: equivalent channel for Wi-Fi channel 6 S-AIR ID C: equivalent channel for Wi-Fi channel 11 The transmission may be improved by changing the transmission channel (frequency) of the other wireless system(s). For details, refer to the operating instructions of the other wireless system(s).
Press V/v repeatedly to select STANDBY.
Press or b to enter the parameter. Press V/v repeatedly to select the setting you want.
STBY OFF: You cannot enjoy the S-AIR receiver while the S-AIR main unit is in standby mode. STBY ON: You can enjoy the S-AIR receiver while the S-AIR main unit is in standby mode or turned on.

When DVD input is selected, the sound of the DVD player will become a digital sound through the OPTICAL SAT IN jack. The input you can assign varies for each audio input. For details, see the following Assignable inputs for digital audio input.
Enjoying the DIGITAL MEDIA PORT

(DMPORT)

The DIGITAL MEDIA PORT (DMPORT) allows you to enjoy sound and image from a network system such as a portable audio/video source or computer. By connecting a DIGITAL MEDIA PORT adapter (not supplied), you can enjoy sound and image from the connected component on the receiver. For details, refer to the operating instructions supplied with the DIGITAL MEDIA PORT adapter. Notes
Do not connect an adapter other than the DIGITAL MEDIA PORT adapter. Before connecting the cords, be sure to disconnect the AC power cord (mains lead). Do not connect or disconnect the DIGITAL MEDIA PORT adapter while the receiver is turned on. Depending on the DIGITAL MEDIA PORT adapter, video output may not be possible. The DIGITAL MEDIA PORT adapters are available for purchase depending on the area.
Assignable inputs for digital audio input
The initial setting is marked with an underscore.
Digital audio Assignable input inputs [Display] COAXIAL VIDEO 1 DVD IN VIDEO 2 [DVD COAX] BD DVD SAT SA-CD/CD OPTICAL SAT IN [SAT OPT] VIDEO 1 VIDEO 2 BD DVD SAT SA-CD/CD Display
DVD VD1 DVD VD2 DVD BD DVD DVD DVD SAT DVD CD SAT VD1 SAT VD2 SAT BD SAT DVD SAT SAT SAT CD
You cannot reassign more than one digital audio input to the same input. You cannot use the digital audio input as the original input when it has been reassigned to another input. When you assign the digital audio input, the INPUT MODE setting may change automatically (page 88).
Connecting the DIGITAL MEDIA PORT adapter
You can listen to the sound and view the images from the component connected through the DIGITAL MEDIA PORT adapter to the DMPORT jack on the receiver.

AM SAT IN

SURR CENTER
DIGITAL MEDIA PORT adapter
A Video cord (not supplied)
To detach the DIGITAL MEDIA PORT adapter from DMPORT jack

DMPORT

When connecting the DIGITAL MEDIA PORT adapter, be sure the connector is inserted with the arrow mark facing towards the arrow mark on the DMPORT jack. Be sure to make DMPORT connections firmly, insert the connector straight in. As the connector of the DIGITAL MEDIA PORT adapter is fragile, be sure to handle with care when placing or moving the receiver.
Press and hold both sides of the connector and then pull out the connector.

A high sound quality digital signal format. It records audio at a sampling frequency and bit rate of 96kHz/24bit which is the highest possible for DVD-video. The number of playback channels varies depending on the software.
x PCM (Pulse Code Modulation)
A method of converting analog audio to digital audio for easy enjoyment of digital sound.
x S-AIR (Sony Audio Interactive Radio frequency)
Recent times have seen the rapid spread of DVD media, Digital Broadcasting, and other high quality media. To ensure that the subtle nuances of these high quality media are transmitted with no deterioration, Sony has developed a technology called S-AIR for the radio transmission of digital audio signals with no compression, and has incorporated this technology into the EZWRT10/EZW-T100. This technology transfers digital audio signals with no compression using the 2.4 GHz band range of ISM band (Industrial, Scientific, and Medical band), such as wireless LANs and Bluetooth applications.

x DTS Digital Surround

Digital audio encoding/decoding technology for theaters developed by DTS, Inc. It compresses audio less than Dolby Digital, delivering a higher quality sound reproduction.

x DTS-ES

Format for 6.1 channel playback with surround back information. There are two modes, Discrete 6.1 which records all channels independently, and Matrix 6.1 which matrixes surround back channel into LS (left surround) and RS (right surround) channels. It is ideal for playback of motion picture soundtracks.

x Sampling frequency

To convert analog audio to digital, analog data should be quantified. This process is called sampling, and the number of times per second the analog data is quantified is called the sampling frequency. A standard music CD stores data quantified at 44,100 times per second, which is expressed as a sampling frequency of 44.1 kHz. Generally speaking, a higher sampling frequency means better sound quality.

Precautions

On safety
Should any solid object or liquid fall into the cabinet, unplug the receiver and have it checked by qualified personnel before operating it any further.

On power sources

Before operating the receiver, check that the operating voltage is identical with your local power supply. The operating voltage is indicated on the nameplate on the back of the receiver. The unit is not disconnected from the AC power source (mains) as long as it is connected to the wall outlet, even if the unit itself has been turned off. If you are not going to use the receiver for a long time, be sure to disconnect the receiver from the wall outlet. To disconnect the AC power cord (mains lead), grasp the plug itself; never pull the cord. One blade of the plug is wider than the other for the purpose of safety and will fit into the wall outlet only one way. If you are unable to insert the plug fully into the outlet, contact your dealer. The AC power cord (mains lead) must be changed only at a qualified service shop.

If the problem persist

Consult your nearest Sony dealer. Note that if service personnel changes some parts during repair, these parts may be retained. In the event of a problem with S-AIR function, have a Sony dealer check the entire system together (S-AIR main unit and S-AIR sub unit).
Reference sections for clearing the receivers memory
To clear All memorized settings Customized sound fields See page 29 page 61
Measured under the following conditions: Power requirements 120 V AC, 60 Hz

Area code U, CA

2) Reference power output for front, center, surround
and surround back speakers. Depending on the sound field settings and the source, there may be no sound output.
Frequency response Analog 10 Hz 70 kHz +0.5/2 dB (with sound field and equalizer bypassed)

Inputs Analog

General

Power requirements

Area code U, CA Power requirements 120 V AC, 60 Hz
Sensitivity: 500 mV/ 50 kohms S/N3): 96 dB (A, 500 mV4)) Digital (Coaxial) Impedance: 75 ohms S/N: 100 dB (A, 20 kHz LPF) Digital (Optical) S/N: 100 dB (A, 20 kHz LPF) Outputs (Analog) AUDIO OUT Voltage: 500 mV/ 10 kohms SUBWOOFER Voltage: 2 V/1 kohm Equalizer Gain levels 6 dB, 1 dB step
Power output (DIGITAL MEDIA PORT) DC OUT: 5 V, 0.7 A MAX Power consumption
Area code U, CA Power consumption 240 W

3) INPUT

SHORT (with sound field and equalizer bypassed). 4) Weighted network, input level.

FM tuner section

Tuning range 87.5 108.0 MHz Antenna FM wire antenna Antenna terminals 75 ohms, unbalanced Intermediate frequency 10.7 MHz
Power consumption (during standby mode) 0.3 W (when CONTROL FOR HDMI in HDMI menu is set to CTRL OFF and STANDBY in S-AIR menu is set to STBY OFF) Dimensions (w/h/d) (Approx.) 1/3/4 inches (430 157.mm) including projecting parts and controls Mass (Approx.) 17 lb 11 oz (8.0 kg)

Supplied accessories

Operating instructions (this manual) Quick Setup Guide (1) FM wire antenna (aerial) (1) AM loop antenna (aerial) (1) RM-AAU021 Remote Commander (1) R6 (size-AA) batteries (2) Optimizer microphone (ECM-AC2 or ECM-AC2a) (1)

AM tuner section

Tuning range
Area code U, CA Tuning scale 10 kHz step 530 1,710 kHz 9 kHz step 531 1,710 kHz
Antenna Loop antenna Intermediate frequency 450 kHz
For details on the area code of the component you are using, see page 4. Design and specifications are subject to change without notice. Halogenated flame retardants are not used in the certain printed wiring boards.

4-147-992-11(4)

Home Theatre Speaker System

SA-VS350H SA-VS150H

(4) 2009 Sony Corporation Printed in China
Notice for customers: the following information is only applicable to equipment sold in countries applying EU directives.
The manufacturer of this product is Sony Corporation, 1-7-1 Konan Minato-ku Tokyo, 108-0075 Japan. The Authorized Representative for EMC and product safety is Sony Deutschland GmbH, Hedelfinger Strasse 61, 70327 Stuttgart, Germany. For any service or guarantee matters please refer to the addresses given in separate service or guarantee documents.
The volume level should not be turned up to the point of distortion.

On placement

Do not set the speakers in an inclined position. Do not place the speakers in locations that are: Extremely hot or cold Dusty or dirty Very humid Subject to vibrations Subject to direct sunlight Use caution when placing the speaker on a specially treated (waxed, oiled, polished, etc.) floor, as staining or discoloration may result.
Reproduction frequency range 28 Hz - 200 Hz Continuous RMS power output 150 W (6 ohms 100 Hz, 10% THD) Input LINE IN (input pin jack) General Power requirements North American models:120 V AC, 60 Hz Other models: 220-230 V AC, 50/60 Hz Power consumption North American models:100 W/less than 0.9 W (standby mode) Other models: 90 W/less than 0.9W (standby mode) Dimensions (w/h/d) Approx. 505 mm (7 7/1/in.), including front grille Mass Approx. 13 kg (28 lb 10 oz)

Franais AVERTISSEMENT

Pour rduire les risques dincendie ou dlectrocution, gardez cet appareil labri de la pluie et de lhumidit. Pour rduire le risque dincendie, nobstruez pas lorifice de ventilation de lappareil avec un journal, une nappe, une tenture, etc. Ne posez pas non plus de source de flamme nue, notamment une bougie allume, sur lappareil. Pour rduire les risques dincendie ou dlectrocution, gardez cet appareil labri des claboussures ou des gouttes deau, et ne placez pas dobjets remplis de liquides, comme des vases, sur lappareil. Pour viter toute blessure, cet appareil doit tre solidement fix au sol/mur conformment aux instructions dinstallation. Lappareil nest pas dbranch du secteur aussi longtemps quil est raccord la prise secteur, mme sil steint automatiquement. Comme la fiche principale permet de dbrancher lappareil du secteur, raccordez lappareil une prise secteur facilement accessible. Si vous constatez une anomalie dans lappareil, dbranchez immdiatement la fiche principale de la prise secteur. Ninstallez pas lappareil dans un espace confin comme dans une bibliothque ou un meuble encastr. La plaque signaltique se trouve lextrieur, au dos de lappareil.
Tenue en puissance Capacit maximale : Niveau de sensibilit Plage de frquences Dimensions (l/h/p)
150 W 81 dB (1 W, 1 m) 120 Hz - Hz environ mm (3 1/3/po.), avec grille avant, (Diamtre de la base : 250 mm (9 7/8 po.)) environ 5,0 kg (11 li.)
NOTICE FOR THE CUSTOMERS IN THE U.S.A
This symbol is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
SS-CNV350 (enceinte centrale)
Systme acoustique Enceintes 2 voies Haut-parleur : 57 mm (2 1/4 po.) ( 2), cne Aigu : 25 mm (1 po.), type en dme quilibr Bass-reflex 8 ohms 150 W 81 dB (1 W, 1 m) 120 Hz - Hz environ 98 mm (13 5/1/7/8 po.), avec grille avant environ 1,7 kg (3 li. 12 on.)

On cleaning

Clean the speaker cabinets with a soft cloth lightly moistened with a mild detergent solution or water. Do not use any type of abrasive pad, scouring powder or solvent such as alcohol or benzine.

English

Important Safety Instructions
1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) not use this apparatus near water. Do 6) Clean only with dry cloth. Do 7) not block any ventilation openings. Install in accordance with the manufacturers instructions. 8) not install near any heat sources such as radiators, heat Do registers, stoves, or other apparatus (including amplifiers) that produce heat. 9) not defeat the safety purpose of the polarized or Do grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10) rotect the power cord from being walked on or pinched P particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. 11) nly use attachments/accessories specified by the O manufacturer. 12) se only with the cart, stand, tripod, bracket, or table U specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/ apparatus combination to avoid injury from tip-over.

Systme acoustique Enceintes 2voies Haut-parleur: 60 100mm (23/84 po.), cne Aigu: 25mm (1po.), type en dme quilibr Bass-reflex 8ohms 150 W 81dB (1W, 1m) 120Hz - 50000Hz environ 98mm (3 1/1/7/8 po.), avec grille avant environ 1,0kg (2 li. 4 on.)

WARNING

To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. To reduce the risk of fire, do not cover the ventilation opening of the apparatus with newspapers, tablecloths, curtains, etc. Do not place the naked flame sources such as lighted candles on the apparatus. To reduce the risk of fire or electric shock, do not expose this apparatus to dripping or splashing, and do not place objects filled with liquids, such as vases, on the apparatus. To prevent injury, this apparatus must be securely attached to the floor/wall in accordance with the installation instructions. The unit is not disconnected from the mains as long as it is connected to the AC outlet, even if the unit itself has been turned off. As the main plug is used to disconnect the unit from the mains, connect the unit to an easily accessible AC outlet. Should you notice an abnormality in the unit, disconnect the main plug from the AC outlet immediately. To reduce the risk of electric shock, the speaker cord should be connected to the apparatus and the speakers in accordance with the following instructions. 1. isconnect the AC power cord (mains lead) from the wall D outlet (mains). 2. trip 10 to 15 mm (13/32 ~ 19/32 in.) of the wire insulation of the S speaker cord. 3. onnect the speaker cord to the apparatus and the speakers C carefully so as not to touch the core of speaker cord by hand. Also disconnect the AC power cord (mains lead) from the wall outlet (mains) before disconnecting the speaker cord from the apparatus and the speakers. Do not install the appliance in a confined space, such as a bookcase or built-in cabinet. The nameplate is located on the rear exterior.
Enclosure type Rated impedance Power handling capacity Maximum input power: Sensitivity level Frequency range Dimensions (w/h/d)
Type de caisson Impdance nominale Tenue en puissance Capacit maximale: Niveau de sensibilit Plage de frquences Dimensions (l/h/p) Poids

Fonctionnement

Ne pas faire fonctionner le systme acoustique continuellement une puissance dpassant sa puissance dentre maximale. Si la polarit des connexions denceintes nest pas correcte, les graves seront faibles et la position des diffrents instruments de musique indistincte. Avant de raccorder les enceintes, teignez lamplificateur pour viter dendommager le systme acoustique. Les grilles des enceintes ne peuvent pas tre retires. Nessayez pas de les enlever car les enceintes pourraient tre endommages. Le volume sonore ne doit pas tre lev au point que le son en soit dform.

SA-WVS350 (caisson de graves)
Systme acoustique Enceintes Caisson de graves actif Haut-parleur : 150 mm (6 po.) (2), type cnique Type de caisson Bass-Reflex acoustiquement charg Plage de frquences reproduites 28 Hz - 200 Hz Puissance de sortie RMS continue 150 W (6 ohms 100 Hz, 10% DHT) Entre LINE IN (prise dentre) Gnralits Alimentation Modles dAmrique du Nord : 120 V CA, 60 Hz Autres modles : 220-230 V CA, 50/60 Hz Consommation Modles dAmrique du Nord : 100 W/infrieure 0.9 W (mode de pause) Autres modles : 90 W/infrieure 0.9 W (mode de pause) Dimensions (l/h/p) environ 505 mm (7 7/1/po.), avec grille avant Poids environ 13 kg (28 li. 10 on)
SS-CNV350 (center speaker)
Speaker system Speaker units 2 way Woofer: 57 mm (2 1/4 in.) ( 2), cone type Tweeter: 25 mm (1 in.), balanced dome type Bass reflex 8 ohms 150 W 81 dB (1 W, 1 m) 120 Hz - 50,000 Hz Approx. 98 mm (13 5/1/7/8 in.), including front grille Approx. 1.7 kg (3 lb 12 oz)
13) nplug this apparatus during lightning storms or when U unused for long periods of time. 14) efer all servicing to qualified service personnel. Servicing is R required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
Enclosure type Rated impedance Power handling capacity Maximum input power: Sensitivity level Frequency range Dimensions (w/h/d) Mass

Emplacement

Ninstallez pas les enceintes en position incline. Ninstallez pas les enceintes dans des endroits: Extrmement chauds ou froids Poussireux ou sales Trs humides Sujets des vibrations Exposs la lumire directe du soleil Prenez les prcautions ncessaires lors de linstallation des enceintes sur un plancher trait (cir, huil, verni, etc.) pour viter lapparition de taches ou la dcoloration du sol.

Precautions

On safety
Before operating the system, be sure that the operating voltage of the system is identical with that of your local power supply. Unplug the system from the wall outlet if it is not to be used for an extended period of time. To disconnect the cord, pull the cord by grasping the plug. Never pull the cord itself. Should any liquid or solid object fall into the system, unplug the systems power cord and have the system checked by qualified personnel before operating it any further. AC power cord must be changed only at the qualified service shop.
SS-SRV350 (surround speakers for SA-VS350H) (front and surround speakers for SA-VS150H)

Speaker system Speaker units 2 way Woofer: mm (2 3/in.), cone type Tweeter: 25 mm (1 in.), balanced dome type Bass reflex 8 ohms 150 W 81 dB (1 W, 1 m) 120 Hz - 50,000 Hz Approx. 98 mm (3 1/1/7/8 in.), including front grille Approx. 1.0 kg (2 lb 4 oz)

Nettoyage

Nettoyez les coffrets denceintes avec un chiffon doux lgrement imprgn dune solution dtergente neutre ou deau. Ne pas utiliser de tampons abrasifs, de poudre rcurer ni de solvants, comme lalcool ou lessence.
Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems)
This symbol on the product or on its packaging indicates that this product shall not be treated as household waste. Instead it shall be handed over to the applicable collection point for the recycling of electrical and electronic equipment. By ensuring this product is disposed of correctly, you will help prevent potential negative consequences for the environment and human health, which could otherwise be caused by inappropriate waste handling of this product. The recycling of materials will help to conserve natural resources. For more detailed information about recycling of this product, please contact your local Civic Office, your household waste disposal service or the shop where you purchased the product.

On operation

Do not drive the speaker system with a continuous wattage exceeding the maximum input power of the system. If the polarity of the speaker connections are not correct, the bass tones will be weak and the position of the various instruments obscure. Before connecting, turn off the amplifier to avoid damaging the speaker system. The speaker grille cannot be removed. Do not attempt to remove the grille on the speaker system. If you try to remove it, you may damage the speaker.

Spcifications

SS-FVS350 (enceintes frontales pour le modle SA-VS350H)
Systme acoustique Enceintes 2 voies Haut-parleur : mm (23/84 po.), cne Aigu : 25mm (1 po.), type en dme quilibr Bass-reflex 8 ohms

Accessoires fournis

Cordon de raccordement audio (1)* Cordons denceintes (4)* Cordons denceintes (3)* Supports de montage (2) Support denceinte (pour enceintes surround/arrire surround) (2) Vis (6)
* A lexception des modles pour lAmrique du Nord. La conception et les spcifications sont sujettes modification sans pravis.

SA-WVS350 (subwoofer)

Speaker system Speaker units Enclosure type Active subwoofer Woofer: 150 mm (6 in.) ( 2), cone type Acoustically Loaded Bass reflex Type de caisson Impdance nominale
7.1 channel speaker system Systme denceintes 7.1 canaux Center Centrale Subwoofer Caisson de graves Front (Left) Avant (gauche) Front (Right) Avant (droite)
6.1 channel speaker system Systme denceintes 6.1 canaux Center Centrale Subwoofer Caisson de graves Front (Left) Avant (gauche) Front (Right) Avant (droite)

5.1 channel speaker system Systme denceintes 5.1 canaux Center Centrale Subwoofer Caisson de graves Front (Left) Avant (gauche) Front (Right) Avant (droite)
Bracket Support de montage
Front (Right) Avant (droite) VS350H
Subwoofer Caisson de graves

Center Centrale

Front (Left) Avant (gauche) VS350H
Rear of the speakers Arrire des enceintes
Rear of the subwoofer Arrire du caisson de graves

Amplifier Amplificateur

Front Panel Panneau frontal

POWER ON / STANDBY

Rear Panel Panneau arrire

LINE IN

MAX BASS BOOST MIN MAX LEVEL MIN

BASS BOOST LEVEL

Surround (Left) Surround (gauche)
Surround (Right) Surround (droite)
Surround (Left) Surround (gauche) Surround back Arrire surround
Surround back (Left) Surround back (Right) Arrire surround (gauche) Arrire surround (droite)
Speaker stand Support denceinte Surround (Right) Surround Surround (droite) back (Right) Arrire surround (droite) Surround Surround (Left) back (Left) Surround (gauche) Arrire surround (gauche) POWER SAVE

NORMAL

REVERSE

PHASE POWER SAVE

POWER SAVE
Connecting the speakers ()
Make sure the plus (+) and the minus () terminals on the speakers are matched to the corresponding plus (+) and minus () terminals on the amplifier. Make sure all connections are firm. Contact between bare speaker wires at the speaker terminals may cause a short circuit. Be sure to tighten the screws of the speaker terminals securely as loose screws may become a source of noise.
Activate the auto power on/off function. If the subwoofer is on and there is no signal input for a few minutes, the ON/STANDBY indicator changes to red and the subwoofer enters power saving mode. If a signal is input to the subwoofer, the subwoofer automatically turns on.

Franais

Branchement des enceintes ()
Assurez-vous que les bornes plus (+) et moins () des enceintes correspondent aux bornes plus (+) et moins () de lamplificateur. Veillez insrer fond les fils dans les bornes. Le contact des fils denceinte dnuds au niveau des bornes de lenceinte peut provoquer un court circuit. Veillez bien serrer les vis des bornes denceintes, car des vis desserres peuvent tre une source de parasites.
About these Operating Instructions
The SA-VS350H/SA-VS150H is a 7.1 channel speaker system consisting of two front speakers, four surround/surround back speakers, one center speaker, and one subwoofer. You can also enjoy 5.1 or 6.1 channel surround sound by joining the surround or surround back speakers using the supplied brackets. It supports Sony Digital Cinema Sound, Dolby* Pro Logic, Dolby Digital, and DTS** etc., and is thus geared towards the enjoyment of movies. * Dolby and the double-D symbol are trademarks of Dolby Laboratories. ** DTS and DTS Digital Surround are registered trademarks of Digital Theater Systems, Inc.

A propos de ce mode demploi
Le SAVS350H/SAVS150H est un systme denceintes 7.1canaux compos de deux enceintes avant, quatre enceintes surround/arrire surround, une enceinte centrale et un caisson de graves. Vous pouvez galement bnficier dun son surround 5.1 ou 6.1canaux en ajoutant des enceintes surround ou arrire surround laide des supports de montage fournis. Il prend en charge les systmes Sony Digital Cinema Sound, Dolby* Pro Logic, Dolby Digital et DTS** etc. Il est par consquent rserv au visionnage de films. * Le terme Dolby et le sigle double D sont des marques commerciales de Dolby Laboratories. ** DTS et DTS Digital Surround sont des marques commerciales dposes de Digital Theater Systems, Inc.
Activez la fonction de mise sous tension/hors tension automatique. Si le caisson de graves est sous tension et quil ny a aucune entre de signal pendant quelques minutes, le voyant ON/ STANDBY passe au rouge et le caisson de graves entre en mode dconomie dnergie. Lorsquun signal est transmis au caisson, celui-ci se met automatiquement sous tension.

Troubleshooting

Should you encounter a problem with your speaker system, check the following list and take the indicated measures. If the problem persists, consult your nearest Sony dealer. There is no sound from the speaker system. Make sure all the connections have been correctly made. Make sure the volume on the amplifier has been turned up properly. Make sure the program source selector on the amplifier is set to the proper source. Check if headphones are connected. If they are, disconnect them. Make sure that the subwoofer isnt in power saving mode. If you turn down the volume level too low, the auto power on/off function may activate, causing the subwoofer to enter power saving mode. There is distortion in the subwoofer sound output. Check if any sound-enhancing functions have been activated on the amplifier. If they have, turn them off. If the sound distorts when you turn on the bass reinforcement from your amplifier (such as DBFB, GROOVE, the graphic equalizer, etc.), turn down the bass reinforcement and adjust the level. There is hum or noise in the speaker output. Make sure all the connections have been correctly made. Make sure none of the audio components are positioned too close to the TV set. If the volume level of the subwoofer is turned up to maximum, extraneous noise may be output. The sound has suddenly stopped. Make sure all the connections have been correctly made. Contact between bare speaker wires at the speaker terminals may cause a short circuit. Bass sounds are produced too heavily. Some material is recorded with strong emphasis on bass sounds, which may be excessive in some cases. If this happens, rotate BASS BOOST towards minimum. Howling occurs. Reposition the speakers or turn down the volume on the amplifier.