Instruction Manual

InWall Subwoofer System SA-350 Mono Subwoofer Amplifier SA-700 Dual Mono Subwoofer Amplifier For use with Atlantic Technology IWTS-8 SUB Woofer Module Only

LEVEL TRIM

LOCATION EQ

PHASE 0 270

LOW PASS 80

BASS LEVEL

Subwoofer 1
25 EQ THX MUTE I ON/STDBY O 0.2 1.5 -20 0dB 50 THX / EXT 150 MIN THX / REF MAX 125 0.2 1.5 -20 0dB 50 THX / EXT 150 MIN THX / REF MAX

FREQUENCY 75

WIDTH 1.0

ATTENUATION -270 80

Subwoofer 2

Atlantic Technology

N N O V A T I V E

H E A T E R

SA-700 Servo Controlled Subwoofer Amplifier

SA-700 pictured

This manual covers installation and operation of SA-350 Mono and SA-700 Dual Mono Subwoofer Amplifiers. Installation of the 8 SUB Woofer Module is covered separately by an instruction sheet included with the woofer.

N O V A T I V E

Safety Precautions InWall Subwoofer System

IMPORTANT NOTE

These instructions are for Atlantic Technology InWall Subwoofer systems using the SA-350 Mono and SA-700 Dual Mono Subwoofer amplifiers. All instructions and information pertain to both systems. Note that the SA-350 amplifier only has one set of front mounted controls and one set of input/output connectors on the back and is designed to work with a single 8 SUB woofer module. The unique design of these drivers and amplifiers means that they must only be used together, with each other. You should never attempt to use a different amplifier with these woofers or different woofers with these amplifiers.

Features

8 SUB Woofer
Ultra-long-throw 8" Coated Composite Molded Graphite polymer cone drivers with vented 8 pound motor structure and 1-3/4" high temperature, 4 layer voice coil
A massive magnetic motor assembly and high temperature parts combined with a bumped out rear plate and compliant suspension allow very long travel capability for the cone. The result is amazing bass performance from a relatively small footprint. One of the most powerful 8" subwoofer drivers ever designed, the motor assembly is much more consistent with 15" woofers!
Sealed enclosure design provides for low distortion deep bass output

Safety Precautions

This design is inherently low in distortion and naturally delivers deep, smooth bass response with a gradual and predictable rolloff below resonance, ensuring accurate musical bass reproduction along with terrific special effects.

SA-350 and SA-700

CAUTION: To reduce the risk of electric shock, do not remove the cover (or back). No user serviceable parts inside. Refer to qualified personnel. WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture. The lightning flash with arrowhead, within an equilateral triangle, 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 electrical shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating maintenance (servicing) instructions in the literature accompanying the appliance.

Linear power high current discrete Class G amplifier conservatively rated at 350 watts RMS per channel with short term peak output ability in excess of 550 watts
The fully discrete design utilizes audiophile grade component parts including an independent power supply for each channel with its own custom-wound, low-hum Toroidal transformer. Class G design means each of the power supplies is dual mode in operation, one for long term operation and the second for short term very high power peaks. High peak current delivers exceptional driver control.

Servo-control circuitry

This circuit monitors woofer performance. If the servo-control detects driver distortion it immediately regains control and eliminates it, resulting in very high output levels at unusually low distortion levels.
Built-in Parametric Equalizer (pages 5 and 13)

For Future Reference

Record your speaker and amplifier serial numbers and date of purchase here:

Model Number

Designed to flatten and smooth bass response deviations caused by standing waves at the listening position in your room.
Four Built-in Program Equalization and one Reference setting (pages 7 and 14)
Weve carefully chosen and built in several preset bass EQ curves, plus a flat/THX response setting, to enhance your enjoyment of all program materials.

Serial Number

Wireless Remote Operation (pages 7 and 14)

Date of Purchase

Control program EQs, volume trim adjustment, and full subwoofer muting from your listening position.
The serial number is found on the back of the speaker near the connecting terminals.
A useful in room working frequency range of 20 Hz to 150Hz
Introduction Instruction Manual
Adjustable (50 Hz to 150 Hz) low-pass crossover (@ 24 dB per octave) with a THX/External setting (pages 5, 12 and 14)

Table of Contents

4 InWall Subwoofer Systems
Amplifier Front Panel Amplifier Back Panel Remote Control Connecting Your Subwoofer
Allows for much better bass integration with the satellite speakers while making the woofer less localizable.
Low level inputs, low level thruputs (pages 6 and 7)
Thruputs allow daisy chaining of multiple subwoofers, or can act as a return path back to the processor.
Four position Phase Invert switch (pages 5, 12 and 14)
Allows precise acoustic matching with satellite speaker systems whose output may be phase reversed. May also help to compensate for unusual room acoustics that can occur, causing a lack of or too much bass at the listening position.

Copyright 2001 Atlantic Technology International. Specifications are those in effect at the time of printing. Atlantic Technology reserves the right to change specifications or designs at any time without notice. THX and THX Ultra are registered trademarks of Lucasfilm, Ltd. Dolby Digital, AC-3, Dolby Stereo and Dolby Pro Logic are trademarks of Dolby Laboratories Licensing Corporation.
InWall Subwoofer Systems InWall Subwoofer System

InWall Subwoofer Systems

Congratulations on your purchase of an Atlantic Technology InWall Subwoofer System. This unique invisible subwoofer will enhance your listening pleasure dramatically, by providing the bass foundation upon which most music and special effects are built. In addition, its flexible control capability brings new meaning to the terms system and room integration, providing unheard of fine tuning capability to optimize its performance and your enjoyment. The InWall Subwoofer System is capable of delivering very high output levels and wide dynamic range. When properly set up and adjusted it will provide smooth in-room bass response down to approximately 25 Hz, with a peak SPL capability in excess of 105dB (using two dual woofer modules and the SA-700 amplifier, in a 3000 cubic foot space).

Figure 1 Figure 2

The system consists of in-wall enclosures (Fig. 1) designed to be installed in your walls before the sheetrock is put up, a dual 8 inch woofer driver assembly (Fig. 2) and a separate dedicated amplifier and remote control (Fig. 3-4) to power the woofers. There are two versions of the system, a single sub assembly paired with an SA-350 mono amplifier and two subwoofer assemblies paired with the SA700 dual mono amplifier. The combination two subwoofer assembly/SA-700 system is THX Ultra certified. Your Atlantic Technology powered subwoofer is designed to smoothly integrate with virtually all other brands of loudspeakers on the market. And from its premium gold plated connectors to its very flexible range of adjustment, this is one of the most versatile and unique high performance subwoofers ever produced.

Figure 3

EQ1 EQ2

Figure 4

Amplifier Front Panel Instruction Manual

Amplifier Front Panel

NOTE: Items in gray area are found on SA-700 amplifier only
LEVEL TRIM display window

ON/STDBY indicator

Indicates level of trim adjustment applied above or below the reference volume setting of your subwoofer. (page 14)

FREQUENCY EQ control

Lights green when the unit is active and yellow when amplifier is in standby mode. Turns red to indicate that amplifier has entered protection mode. (page 12)
Selects the frequency to be adjusted by the parametric equalizer. (page 13)

MUTE indicator

Lights when amplifier volume is muted. (page 7)

PHASE control

WIDTH EQ control
Selects how wide a range of frequencies will be adjusted by the parametric equalizer. (page 13)
Sets correct subwoofer phase (0, 90, 180, or 270) to best match your satellite speakers and room. (pages 12 and 14)

ATTENUATION EQ control

LOW PASS crossover control
Reduces the selected frequencies by the parametric equalizer. (page 13)
Program Equalization indicators
Sets the low frequency crossover between the subwoofer and your satellite speakers. A detent setting is provided for THX/ EXT operation. (pages 12 and 14)
Light indicates selected Reference or EQ program. (page 14)

Main Power switch

BASS LEVEL control
Turns amplifier on or off. (page 12)
Sets the reference volume level of the connected subwoofer(s). A detent setting is provided for THX/REF operation. (pages 13 and 14)
Amplifier Back Panel InWall Subwoofer System

Amplifier Back Panel

Figure 6
VOL+ VOL MUTE EQ1 EQ2 EQ3 EQ4 EQ5 COM

MODEL - SERIAL NUMBER

COMMAND THRU IR IN THRU LO IN

SUBWOOFER 1

SPEAKER OUTPUT
AC INPUT 120 VAC 50 / 60 Hz 1300W max
ATTENTION: use specified speakers only DESIGNED AND ENGINEERED IN USA, MANUFACTURED IN TAIWAN

+ SPEAKER

OUTPUT

WARNING

RISK OF ELECTRIC SHOCK DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE / NE PAS OUVRIR

SUBWOOFER 2

Product Serial Number

High Level Inputs

Write this number in the space provided on page 2 for future reference.
Use the HI IN binding posts to connect a high level (speaker) output from your processor/amplifier. (page 7)

Subwoofer Outputs

Direct Access Remote Control port and IR port connector (included, not shown)
Use for hard-wired direct access of remote control functions.
Use the SPEAKER OUTPUT binding posts to connect the amplifier to the 8 SUB Module(s). (page 7)

AC Input

Remote Control jacks
Use the IR IN jack to connect a remote sensor to the amplifier when line of sight with the remote control is not possible. Use the THRU jack to connect other devices to the sensor. (page 8)

Use the included power cord to connect your amplifier to a wall outlet. (page 12)

Low Level jacks

Use the LO IN jack to connect to the subwoofer line out from your processor/receiver. Use the THRU jack to pass the signal to the other channel of the SA-700 or to another device. (page 7)
Connecting Your Subwoofer Instruction Manual

Remote Control

Figure 7
Connecting Your Subwoofer
The Atlantic Technology InWall Subwoofer System is simple to hook up, offering several connection methods for maximum flexibility. Study the system diagrams starting on Page 8. Once you have found the example which most closely matches your system, hook up your subwoofer(s) as shown in that diagram. In all cases, the 8 SUB Module(s) connect to the amplifier using the SPEAKER OUTPUT(s), with high-quality speaker wire, as outlined in the High Level Connection section below.
WARNING: To prevent risk of electrical shock or damage to your equipment, always unplug all component AC cords before proceeding with speaker and component connections! The last step in wiring your system should be plugging in the AC cords!
Low Level Connection (LO IN)
We suggest using the low level (RCA jack) subwoofer line out or preamp output if your receiver/processor has one. This jack may be labeled Sub, Subwoofer, or LFE (Low Frequency Effects). Simply connect to the LO IN jack(s) on your SA-350 or SA-700 amplifier with high-quality shielded cables as shown in Figures 8-10. Please consult your processor/receiver manual for further information.
Using the Low Level Thruput (THRU)
If your processor has a single subwoofer output and you are using the SA-700 Dual Mono amplifier connect it using the example in Figure 9 to connect both channels of the amplifier. We have supplied a short jumper to facilitate this connection method. The THRU jack(s) can also be used to run a low level signal through the amplifier and out to another unit, as shown in Figure 8. The signal that comes out of the THRU jack(s) is identical to the input signal.
High Level Connection (HI IN)
Alternately, if you are using the SA-700 with dual 8 SUB Modules, you may use the high level (HI IN) inputs by following the diagram in Figure 11. If you do, we recommend that you use high-quality speaker wire of at least 16 gauge or larger. Please consult your audio/video specialist for more specific information.
IMPORTANT NOTE: You can use the HI IN input on the SA-350 to connect one high level input from a single channel source. For stereo (2 channel) hookup, please contact Atlantic Technology for further information.

Preset Program EQ buttons
Select from 4 preset equalization settings. (page 14)

Reference EQ button

REF button returns the amplifier to its flat/THX EQ settings and returns the volume trim level to 0dB. (page 14)

MUTE button

Mutes the volume of the amplifier. Pressing again returns the amplifier to the previous volume setting
You can connect to the HI IN inputs by using a variety of connectors, or by removing 1/2" of insulation from each wire end, twisting the individual strands of each conductor together, placing the wire through one of the post holes and screwing down the nut tightly. Its important to observe polarity while making speaker connections: red (+) terminals on the amplifier to red (+) on the speaker, black () on the amplifier to black () on the speaker. Note that one wire in each pair will be marked by either the conductor color, printing on the wire jacket, a ridge on one side of the wire jacket, or a thread intertwined with the wire strands. By convention, the marked wire is connected to the red (+) terminal.

Level TRIM buttons

The v button increases and the w button decreases the volume of the subwoofer above or below the preset reference level in 1dB increments. (page 14)
Connecting Your Subwoofer InWall Subwoofer System
SA-350 Low Level Connections

Figure 8

Sub Out/LFE
additional subwoofer amplifier
additional audio/video devices Direct Access Remote Control
SA-700 Low Level Connections with one SubOut/LFE Output

Figure 9

Sub Out/LFE Must connect jumper (supplied)
SA-700 Low Level Connections with two SubOut/LFE Outputs

Figure 10

SA-700 High Level Connections

Figure 11

System Setup and Operation InWall Subwoofer System

Power Connection

Connect the power cord to an AC outlet only after making all other connections to the subwoofer. This will avoid any chance of accidentally activating the subwoofer while wiring. DO NOT PLUG THE SA-350 OR SA-700 INTO THE SWITCHED OUTLET OF AN AMPLIFIER, PREAMPLIFIER, OR RECEIVER. The power demands of these amplifiers is substantial and will exceed the power rating of the switched outlet and may damage the equipment. Be sure that the printed voltage rating on the back of the amplifier is correct for your location. The InWall Subwoofer System is totally automatic in its operation. Once the main power switch on the front of the amplifier has been turned on, the automatic on/off circuitry will activate the subwoofer in the presence of an audio signal from your system. After 7-10 minutes with no signal detected from the rest of the system, the amplifier will return to the Standby mode. When the sub is in operating mode, the power LED located on the front of the amplifier will glow green. The LED will switch to yellow in the Standby mode and power consumption in this mode is negligible. When you leave for a longer period of time, (vacation, weekend away, etc.) we recommend shutting off the main power switch on the front panel of the amplifier.

low frequency performance. Settings lower than 80Hz should be employed if you are using larger speakers that have extended bass response. This way, the subwoofer will only reproduce the very lowest bass frequencies that are in the range where the large main speakers begin to roll off. Its generally undesirable to have the main speakers and the subwoofer overlap too much. Larger speakers means a lower LOW PASS crossover frequency, smaller speakers means a higher LOW PASS crossover frequency. Consult the manufacturers specified low frequency response for your main speakers to determine the appropriate LOW PASS setting on your subwoofer. In the end, however, a little time spent experimenting will generally result in dramatically better bass response.
A Word About Bass, Center Channel Modes, and System Setup Many Dolby Pro Logic surround processors and surround receivers provide a choice between Wide (full frequency range) and Normal (restricted low frequency) mode for the center channel speaker. Atlantic Technology recommends that the center channel be operated in the Normal mode when using a powered subwoofer. The center channel speaker will sound more dynamic and the intelligibility of the system will generally be improved when in the Normal mode.

Bass Management

Many newer processor/receivers offer Bass Management capability. If yours does it will ask you to choose between Large and Small loudspeakers during the system setup procedure. When speakers are set to Large the processor/receiver assumes that they can produce full frequency range sound, including very deep bass at fairly high volume levels. When set to small it assumes that the speakers are bass limited and feeds the bass from that channel to the subwoofer. If your processor/receiver offers this choice, all Atlantic Technology satellite speakers should be set to Small. For those of you who may have heard otherwise, the choice of Large or Small is not a matter of opinion, preference, taste, or based upon the phases of the moon. So please ignore all the free and helpful (and many times incorrect) advice and setem to Small. In fact, the vast majority of speakers on the market today should be set to small. As a rule of thumb, if any satellite speaker in your system doesnt have a 10 inch diameter or larger woofer it most probably should be set to small, as far as Bass Management is concerned.
Since this is an in-wall system we assume that you already have the woofer modules installed in your room as per the guidelines provided with the InWall Enclosure. Generally speaking, the closer the subwoofer is placed to a corner, the more and deeper the bass response you will hear. However, in some rooms, corner placement can produce too much bass or a one note boomy effect. Should you find this to be the case in your room after installation, the built in parametric EQ can be used to improve the situation.

The LOW PASS Control

When used with a complete THX Certified speaker system, the InWall Subwoofer System LOW PASS control should be set at 80Hz unless you are using a processor with its own built-in crossover. If your processor is THX certified or has a built-in crossover, set the subwoofer amplifiers LOW PASS control to the THX/EXT setting. All THX certified satellites has been optimized to work LOW PASS with an 80 Hz crossover point. If your Processor/Receiver has no internal crossover (a fairly rare occurrence these days) the subwoofers crossover should be used to optimize the performance of the THX / EXT system, by ensuring that the subwoofer and satellites produce a cohesive and well integrated sound picture.

The PHASE Control

A subwoofer operating out of phase with the rest of the system wont provide optimum low frequency performance. Also, the correct subwoofer phase can enhance room acoustics. Since there is some variation in the industry regarding phase, a PHASE switch that will alter the phase of the subwoofer is provided on PHASE the amplifier. It has 4 positions (0, 90,180,270) for added flexibility. To set the PHASE control, insert the supplied Atlantic Technology/Sencore Test and Training CD in your CD/DVD player and select the broadband bass test tones on Tracks 22. Have someone sit in the prime listen-
Higher crossover frequencies pass more bass but can quickly begin to sound boomy. They also make it easier to localize the subwoofer, which is highly undesirable. Higher crossover frequencies may be suitable, however, when using very small satellites that have no real
Operation Instruction Manual
ing position to evaluate the sound. Pay particular attention to the deep bass as well as the transition of bass from the subwoofer to the satellite speakers. You can also listen to a musical source such as a CD or DVD, with strong bass content that spans the range from deep bass to mid bass (a well recorded jazz disc with someone playing a full stand up bass is always a good choice). Its usually best not to use a one note special effects track like a big explosion or dinosaur stomping to test the subwoofer. Experiment with the position of the PHASE control(s) to get the most extended bass and the best transition from sub to satellites. It should be obvious which is the correct setting. In particular, there will be a smoother more integrated transition between the satellites and the subwoofer when they are properly phased.
Parametric Room Equalizer (EQ)
In order to optimize the performance of your InWall subwoofer the Parametric Equalizer should be utilized. The built in Parametric EQ(s) allow you to select the frequency you want to adjust, and how wide a band on either side of that frequency youre going to adjust with it. They are designed specifically to remove (turn down) unwanted peaks in the bass. The procedure is fairly simple: the included Atlantic Technology/Sencore Test and Training CD is used along with a meter to define the single largest bass peak at the prime listening position and then reduce it with the Parametric EQ. The test and setup CD also includes a wealth of general information concerning sound reproduction and home theater, in addition to the test tones. Although one set of tones is intended for setting the EQ by ear we very strongly recommend using a Sound Pressure Level (SPL) meter or a Real Time Analyzer to set the Parametric EQ.

Adjusting the Parametric EQ Using a Meter or Real Time Analyzer (RTA)
Its important to complete all the preceding steps regarding speaker setup before setting the parametric equalizer. Once they are complete, insert the Atlantic Technology/Sencore Test and Training CD into your CD or DVD player and go to Track 22, which contains bass frequencies from 20Hz to 120Hz. Set the BASS LEVEL of a single subwoofer channel to 75dB at the primary listening position. If you are using an RTA, set it to at least 1/6th octave resolution and slow response. Continue using Track 22 and measure the response of the sub using at least a 1/6th octave resolution (Use slow response to allow the meter to average the standing waves that build up in the room). Chances are that you will find at least one significant peak in the subwoofers range (between 20Hz and the crossover point set on the sub or in the processor). Write down the center frequency of the peak, how wide the peak is (by noting the upper and lower frequencies where it starts and stops) and how high it is, in dB. Begin setting the Parametric EQ by adjusting the FREQUENCY control to the approximate center frequency of the peak. Next adjust the WIDTH control to the approximate width of the peak. Note that the WIDTH control is calibrated in octaves. An octave is a doubling or halving of any chosen frequency. For example, if the chosen fre-
Remote Control Functions InWall Subwoofer System
When using the latest discrete digital electronics we recommend setting the subwoofer amplifiers BASS LEVEL control to its THX/ REF position and using the Processor/Receivers built-in subwoofer level control. Should you have difficulty achieving the correct subwoofer volume this way or should your Processor/Receiver not have a subwoofer level adjustment built in, you can use the subwoofer amplifiers main BASS LEVEL control to make this adjustment.
Level Setting Without an SPL Meter
If you decide not to use an SPL meter try to set all the speaker levels the same using the Test Tones. Of course, this will be much more difficult without the meter, especially for the subwoofer.
Setting the Subwoofer Level Without an SPL Meter or Test Tones
Start your listening with the subwoofer LOW PASS control set at the correct crossover point (or in the THX/EXT position if youre using a THX Certified processor or unit with a built-in crossover). Set the PHASE control to 0, and the front panel BASS LEVEL control to the THX/REF position as shown to the left.

PHASE LOW PASS 80 BASS LEVEL
Play some music that you know has good bass content, and turn the Processor/ Receivers level control up until you just start to hear the subwoofer working. Now, from your normal listening position, determine whether the subwoofer is playing loudly enough and filling in the bass frequencies of the music evenly. If adjustment is necessary, change the processors setting or use the front panel BASS LEVEL control if your processor lacks a subwoofer level adjustment.
50 THX / EXT 150 MIN THX / REF MAX

How Much is Enough?

Sometimes people prefer more bass impact for movies than sounds natural when reproducing music. Since you have the 4 EQ settings plus the LEVEL TRIM, its now a snap to adjust the subwoofer to compensate for any variations in the source material. Remember however, the most common error people make when setting up their system is to play the subwoofer (and surrounds) too loudly. Should you desire the most accurate overall reproduction, a well balanced sound from deepest bass to highest treble is the best way to get it. Have fun. Experiment. Enjoy.
EQ1 This EQ was designed to enhance music. It actually reduces the midbass of the subwoofer by a EQ4 REF small but noticeable amount. You will find that with most music this TRIM tends to make the bass sound tighter and more defined. It should make individual bass notes easier to hear as well. EQ1 can also be used to remove some boominess from the bass when playing particularly bass heavy material. EQ2 This EQ was programmed to enhance the impact and punch of special effects. It consists of an increase in the bass response centered around 60Hz. Depending upon the source material, EQ2 could also be used to fill in a bass shy music recording. EQ3 Another choice primarily intended to enhance movie and video soundtracks. This one uses a more subtle increase of bass output centered at 80HZ with the addition of a very low frequency filter. This gives you the option of punching up the mid-bass while at the same time reducing the possibility of overdriving the woofers with extreme low frequencies. EQ4 We call EQ4 After Dark. Our ears are less sensitive to the frequency extremes (deep bass and very high sounds) at lower volume levels. In order to compensate during those times when you must play the system at lower volume levels, EQ4 has been designed to raise the overall bass output of the sub slightly. The result will be a fuller and richer sounding bass at low volumes levels. EQ4 is designed to enhance both music and movies. It can also help if you have a low bass problem at the listening position. REF This resets the EQ to flat response and the volume trim to 0dB. LEVEL TRIM and MUTE The w TRIM and v buttons let you change the total output level of your subwoofer MUTE to compensate for soundtrack variations and your personal preferences. Each push of the button results in a 1dB change above or below the preset reference level set with the BASS LEVEL control. The LEVEL TRIM readout on the amplifier indicates the level of adjustment numerically. Pressing the MUTE button turns off the volume of the subwoofer. Pressing it again returns the volume to its previous setting.

EQ1 EQ2 EQ3

Direct Access Connector
Located on the rear panel, this port and the corresponding male plug (included and installed in the port) is for use with a hard wired remote control system using electronic or mechanical switching. Each contact function is labeled. To access the control functions use a normally open connection. Momentary closure will activate each function. The LEVEL TRIM function will respond in 1dB steps to a single contact closure while constant closure will result in continuous steps to the maximum of + or 10dB. The REF EQ and REF volume reset functions each have their own set of contacts.

Remote Control Functions

There are 4 custom EQ settings that have been programmed into your subwoofer amplifier (see graphs on back cover). These have been chosen to enhance your enjoyment of both movies and music. These EQ settings are fairly subtle, as we wanted to make them truly useful with a wide selection of software. They are accessed by using the four EQ buttons on your Remote Control.
Specifications Instruction Manual
Care and Feeding of Your Subwoofer
IMPORTANT: Save Your Boxes! If you can do so, save the carton, packing pieces and plastic bags that came with your subwoofer. They will be useful in case you move or have to ship your subwoofer for any reason. In any case, save all packing materials until you are certain that the system has suffered no damage in shipment. If you find such damage, either visible or internal, contact your dealer immediately for the proper return procedure.
Subwoofer Troubleshooting Guide
Once your subwoofer is set up, you should have many years of maintenance free enjoyment from your system. However, if you should encounter a problem, refer to the following guide to help find the Problem

No bass output

solution. If the problem persists, please contact your local authorized Atlantic Technology dealer. Possible Solution
Plug into a working outlet. Check all connections, then try another input cable. Check all connections, then try another input cable. Test by disconnecting antenna and/or cable system input leads. If hum goes away, install isolation balun(s) at that point. Check speaker wire connections and reconnect in proper phase.

Possible Cause

AC power cord unplugged or plugged into a non-working outlet. Input cables not securely connected or defective.

Audible buzz or hum

Input cable not securely connected or defective. Ground loop through antenna or cable TV system input.
Weak bass: vague stereo image
Input source connected to HI LEVEL inputs is wired out of phase.

Specifications

RMS Power (before limiting and servo) Dynamic IHF Peak Power Signal to Noise Ratio (-90dB hum) Total Harmonic Distortion Frequency Response (typical, in room) Low Level Input Sensitivity Low Level Input Impedance High Level Input Sensitivity High Level Input Impedance Power Supply Storage Toroidal Transformer(s) Peak Output Stage Current Dimensions W x H x D (inches) Weight (lbs) 350 Watts/Channel 550 Watts/Channel -97dB @ full power 0.05% @ full output 20-150 Hz 3 dB 250mv @ full output, 100Hz 22K 2.5v @ full output, 100Hz 820 27K microfarads/channel 400VA/Channel 40amps rated/Channel 19.0 (faceplate); 16.875 (enclosure) x 5.0 (feet and faceplate) x 14.0 SA-350 = 22.3; SA-700 = 38.9
Program EQ Setting Curves

90 SPL (dB)

SPL (dB)
Sound Pressure Level Frequency (Hz) 500 1K Frequency (Hz) 500 1K Sound Pressure Level
90 SPL (dB) Sound Pressure Level

Sound Pressure Level

100 Frequency (Hz) 500 1K

REF/THX (flat)

90 Sound Pressure Level
Note: These graphs represent the response of the amplifier withour crossovers. In actual use, the system is not designed to respond beyond 200Hz.
343 Vanderbilt Avenue Norwood, MA 02062 (781) 762-6300 www.atlantictechnology.com

010-1700

IWTS-8e SUB Woofer Module
For use with Atlantic Technology SA-350, SA-380 Mono or SA-700 Dual Mono Subwoofer Amplifier Only
Installation Instructions
IMPORTANT NOTE: The IWTS-8e SUB Woofer Module must be used only with its matching Atlantic Technology amplifier (SA-380, SA-350 or SA-700). The 8e SUB Woofer Module also must be installed and used only within its dedicated in-wall enclosure (IN-BOX-8e SUB). Please take a few moments to read these instructions. They're intended not only to tell you how to mount the speakers, but how to get the best performance from them. We always recommend a professional be involved in the installation of Atlantic InWall Theater System speakers. Please refer to the Installation Instructions that come with the IWTS-8e SUB In-Wall Enclosure before installing drivers.
The most critical aspect of installing the 8e SUB module is to ensure that there are no air leaks around the unit and that the speaker wires behind the assembly cant vibrate against any internal part of the assembly. Take your time when installing the foam gaskets and the module and also use great care when attaching and locating the wires while you are mounting the module in the enclosure.

Recommended Wire Sizes

The amplifier that accompanies 8e SUB module is very powerful. In addition it is quite likely that there will be a significant distance between the amplifier and the woofers, necessitating long wire runs. And the longer the wire run, the heavier the wire should be. Therefore, we strongly recommend that you use high quality speaker wire between the subwoofer amplifier and the 8e SUB Module. Please use at least 16 gauge for lengths up to 30 feet. Beyond 30 feet please use larger wire; 14 gauge up to 60 feet, 12 gauge up to 100 feet.) Remember that the wire increases in size as the gauge number decreases. If you're in doubt, remember that it never hurts to get the next heavier grade of wire.
Important Considerations Before Installation of IWTS-8e SUB Woofer Module
Mounting and Vibration Concerns
The 8e SUB module is designed to mount into its dedicated in-wall enclosure which must be mounted into the wall before the sheet rock is applied. The 8e SUB Module requires 5/8 inch or thicker sheet rock to mount properly.
Figure 1 8e SUB Woofer Module Installation Exploded View

8e SUB Enclosure

Sheetrock

2x4 or 2x6 Stud Wall

Foam Sealing Gasket IWTS-8e SUB Module 9" Grille 17"

Hollow Core Foam

InWall Enclosure/Woofer Module Installation
The woofer assembly is very heavy. Use care and caution when handling it and mounting it in the in-wall enclosure. the 8e SUB module you must 1 Before mounting3/4 inch self-adhesive foam first apply the sealing gasket (supplied) to the rear side of the 8e SUB white plastic frame (Fig 2). Remove the 8e SUB assembly from its box and place it face down on a flat surface, being careful not to let anything damage the drivers.
Figure 2 Apply foam gasket to frame
screws, which 6 Tighten the mountingcapture the wallwill cause the bezel and the rear clamping assembly to board between themselves. The bezel will conform to the wall board as it should, but BE VERY CAREFUL NOT TO OVERTIGHTEN THE SCREWS.
Removing and Installing the Grille
The Grille is packed separately in the box with the 8e SUB module. This grille must fit very snugly, as the pressure and vibration created by the 8e SUB module is quite capable of shaking the grille off the assembly. There is a specific method of installation that must be followed in order to properly insert the grille. After the woofer assembly has been installed and tested for air leaks install the grille by pressing it carefully into the side of the in-wall frame and then slowly rocking it towards the opposite side making sure that the top and bottom fit as you go along. Attempting to install the grille by putting the top or bottom in first will generally not work. Since its designed to fit snugly, please take your time and use care when installing the grille. If the grill is very difficult to install, try backing out the mounting screws just a bit to reduce warping of the assembly. However, be sure that the frame remains tight against the wall board. Remove the grille from the speaker using an awl or the point of a drywall screw in a grille opening near one of the grille corners. Slowly pry the grille out, being careful not to damage the speakers frame or its finish.

applying the 2 Beginapproximately 2foam gasket by peeling back inches of the adhesives
protective paper cover. Starting in the middle of one side of the back of the frame, apply the foam gasket to the frame, being careful to keep it at least 1/8 inch away from the outside edge. At the corners simply continue around the trim (do not cut the foam in any corner) being careful not to let the foam bunch up enough to hold the frame off the wall. Be sure that the entire frame is gasketed with the foam. You can cut the foam on the straight sections if necessary, but it must overlap any gaps by 1/8 inch to ensure an air tight seal. Leave no gaps or openings as there will be serious (and clearly audible) air leaks if you do.
Locate the speaker wire Figure 3 that you previously ran Hollow core foam into the in-wall speaker enclosure. Packed in the 8e SUB box is an 18 inch piece of hollow core round foam. Cut this foam to the approximate length of the wire, leaving enough wire exposed to connect to the speaker. Run the speaker wire through this foam and tuck it into the in-wall enclosure in such a manner that it will sit within the enclosure and around the woofer magnets when the woofers are installed in the enclosure. The foam eliminates any possibility that the speaker wire will buzz or vibrate inside the enclosure. (Fig. 3)
Painting the Speaker Assembly
The white plastic frame of the speaker Figure 5 baffle assembly and the metal grille Place paint shield over drivers may be left as is or painted to match your decor. You can paint the frame before or after it is installed in the wall. Use the included paint shield to protect against getting any paint on the front of the speaker and only use plastic-compatible paint. Spray painting (using paint thinned 4 to 1) is the best method to use for painting the grille. Multiple light coats are much better than a single heavy coat. Be sure, no matter what method you use to paint the grille, that you use air pressure to blow out any grille holes that become covered over with paint.
1/2 inch of the connecting wires. 4 Strip about appropriateinsulationonfrom8e SUB being careful toConnect them to the terminal the observe polarity (positive to the red terminal, negative to the black terminal).

Figure 4

the 8e SUB into 5 Placeenclosure, alignthe
ing the screw openings with the screw holes in the rear mounting assembly in the in-wall enclosure. Be sure that the round foam wire insulation fits in between the magnet assemblies. If it doesnt you may want to trim the wire/foam to make sure it does. Use the included 3 inch #8 self-tapping screws to attach the two assemblies together. (Fig. 4)
Atlantic Technology 343 Vanderbilt Avenue Norwood, MA 02062 (781) 762-6300 www.atlantictechnology.com

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