Step 4 Mixdown

Reference [Other Functions]
4-1 Preparations for mixdown 4-2 Adjusting volume/pan/EQ 4-3 Using the send/return effect 4-4 Using the mixdown effect 4-5 Recording on the master recorder
Using the tuner Formatting a SmartMedia card Display adjustments Using the AUX IN jacks to save tracks

Reference [Recorder]

Specifications

Battery operation

Use four IEC R6 (size AA) batteries (alkaline or manganese). The MRS-4 cannot be used for recharging. Pay close attention to the labelling of the battery to make sure you choose the correct type. If the MRS-4 is not to be used for an extended period of time, remove the battery from the unit. If batteries leakage has occurred, wipe the battery compartment and the battery terminals carefully to remove all remnants of battery fluid. While using the unit, the battery compartment cover should be closed.
Using V-takes 28 Combining multiple tracks (Bounce function) 29 Re-recording only a specified region (Punch-in/out function) 30
Using manual punch-in/out 31 Using auto punch-in/out 31
MRS-4 file configuration 57 File compatibility with PS-02 57 MRS-4 Card Manager Software 57

Troubleshooting

Cleaning
Use a soft, dry cloth to clean the MRS-4. If necessary, slightly moisten the cloth. Do not use abrasive cleanser, wax, or solvents (such as paint thinner or cleaning alcohol), since these may dull the finish or damage the surface.
Reference [Locating a Point]
Moving to a desired point in a song (Locate function) 33 Switching between time and measure indication 33 Marking a point in a song (marker function) 34
Assigning a mark 34 Moving to a mark location 34 Clearing a mark 35
Playback problems Problems with recording Problems with effects Problems with MIDI Other problems

MIDI Implementation

MIDI implementation 60 MIDI implementation chart 61

Environment

Avoid using your MRS-4 in environments where it will Caution be exposed to:
Please keep this manual at hand for future reference.
Playing back the same passage repeatedly (A-B Repeat) 36

ZOOM MRS-4

Introduction
This section shows the various sections of the unit and explains some important concepts of the MRS-4. Introduction

V-take 7 8

Track 3 4
assigning the input signal to various tracks, and a track mixer that adjusts level and sound quality for each track before sending the result to the left and right MASTER jacks. The illustration below shows the signal flow and how the sections fit together. Now let's take a closer look at each section.

Make sure that all status keys are lit in green. Set the [ON/OFF] keys 1/2 and the [METRONOME] key to OFF.
It is also possible to add the input signal from inputs 1/2 to the mix. In this case, set the desired [ON/OFF] key to ON ( P. 38).

Adjusting volume/pan/EQ

Step 4

Mixdown 1.

Set the [MASTER] fader to 0 dB. While the main screen is shown, press the [TRACK PARAMETER] key. The track parameter menu appears. With this menu, you can change the settings for individual tracks.

Track parameter Setting

When recording of tracks is completed, you can adjust the level, EQ, and panning of each track to create the final stereo mix. This process is called mixdown. When performing mixdown on the MRS-4, you can either record the completed song on an external master recorder, or on unused V-takes in the MRS-4. The example in this section explains how to record on an external master recorder.

Preparations for mixdown

FADE100
Connect the master recorder and make other preparations as follows.
Connect a master recorder (MD or DAT or similar) to the MASTER [L]/[R] jacks. The connection principle for an external master recorder is shown below.
Use the status keys to select the track. While the track parameter menu is shown, the status keys serve for selecting a track. The status key for the currently selected track is lit in orange.

HIEQ ON

Selectable track parameters and settings are listed in the table below.

Monitor system

LINE OUT
Track parameters and settings

Master recorder

LINE IN MASTER[L]/[R]
HI EQ ON/OFF HI EQ GAIN HI EQ FREQUENCY

HIEQ HIG HIF

ON/OFF -12 12
Switches high EQ on or off Adjusts high EQ boost/cut from -12 (dB) to +12 (dB). This parameter is only shown when HI EQ is set to ON. Selects the frequency for high EQ boost/cut. This parameter is only shown when HI EQ is set to ON.
Track parameters and settings (continued)
LO EQ ON/OFF LO EQ GAIN LO EQ FREQUENCY SEND ON/OFF SEND LEVEL Basic Operation
LOEQ LOG LOF SEND SLVL ON/OFF -12 12
Switches low EQ on or off Adjusts low EQ boost/cut from -12 (dB) to +12 (dB). This parameter is only shown when LO EQ is set to ON. Selects the frequency for low EQ boost/cut. This parameter is only shown when LO EQ is set to ON. Determines whether the signal from the respective channel (track) is sent to the send/return effect. Adjusts the level of the signal sent to the send/return effect. This parameter is only shown when SEND is set to ON. Adjusts panning (left/right position) of the signal from the respective track. When STL (stereo link) is set to ON, this adjusts the left/right volume balance of the stereo tracks. Shows the current fader position numerically (display only). Controls the stereo link function for using tracks 1/2 and 3/4 in a stereo configuration. (For details, see page 39.) Selects the V-take to be used for the respective track. * x is the track number and y is the V-take number. (For details, see page 28.)

HALL HALL

CHO MN
Parameter ( RATE 1 RATE 50 ) RATE 1 Adjusts the fluctuation rate. Higher values produce faster fluctuation.

TONE 10

RATE 50
Algorithm 2 Basic Operation
( ROOM 0 ROOM 9 ) This is a stereo effect that adds room type reverberation. Higher settings produce longer reverb time.

Algorithm 7

( CHO ST ) This is a stereo chorus effect. The pitch of left and right components are shifted upside down, resulting in a unique, expansive sound. Basic Operation

ROOM ROOM

CHO ST
( DOUBLE0 DOUBLE9 ) This is a mono doubling delay which adds a slightly delayed component to the original sound, giving the sound more body. Higher settings produce more delayed components.
Parameter ( TIME 2 TIME 50 ) TIME 2 Adjusts the delay time in the range from ms. TIME 50
Use the [PARAMETER/VALUE] keys to select the algorithm and the setting value. The up/down [PARAMETER/VALUE] keys change the setting value. When the highest or lowest setting is reached, the unit switches to the next algorithm.

DOBLE 0 DOBLE 9

( SHORT 0 SHORT 9 ) This is a mono short delay. Higher settings produce more delayed components.
Parameter ( TIME 50 TIME 250 ) TIME 50 Adjusts the delay time in the range from ms. TIME250

SHORT 0 SHORT 9

DOBLE 0
( LONG 0 LONG 9 ) This is a mono long delay. Higher settings produce more delayed components.
Parameter ( TIME 25 TIME 100 ) TIME 25 TIME100

LONG LONG

To change the parameter of the currently selected algorithm, press the [ENTER/YES] key. While the algorithm is displayed, pressing the [ENTER/YES] key calls up the parameter for that algorithm.
Adjusts the delay time in the range from 250 ms (setting value 25) 1000 ms (setting value 100).
To change the setting, use the up/down [PARAMETER/VALUE] keys.

10. 11.

While playing the song, use the up/down [PARAMETER/VALUE] keys to adjust the send level for that track. Perform the same steps for other tracks.

Using the mixdown effect

To return to the algorithm display, press the [EXIT/NO] key.
The mixdown effect serves to process the stereo signal produced by the track mixer. This effect can be used simultaneously with the send/return effect. The signal flow is shown below.

When the algorithm and parameter setting for the send/return effect has been made, press the [EXIT/NO] key several times to return to the main screen.
The send/return effect setting is stored for each song separately.
Adjusting the send/return effect intensity for each track
Proceed as follows to select the algorithm for the mixdown effect and adjust the effect intensity. Selecting the algorithm for the mixdown effect
While the main screen is shown, press the [TRACK PARAMETER] key and then use the status keys to select the track for which you want to make the setting. Use the left/right [PARAMETER/VALUE] keys to call up the SEND (send/return effect) parameter, and set it to ON.
While the main screen is shown, press the [MIXDOWN] key. The [MIXDOWN] key lights up and the mixdown effect is activated. The menu for selecting the algorithm for the mixdown effect appears on the display.

SEND ON

POWER 0
Available algorithms for the mixdown effect are listed in the table on the next page.
Press the right [PARAMETER/VALUE] key once to call up the indication "SLVL" (send level).
Mixdown effect algorithms

POWER 0 POWER 9

Recording on the master recorder

( POWER 0 POWER 9 )

This effect adds fat bass and more power to the sound. Higher values produce more bass emphasis.
When the mixdown effect setting is completed, you are ready to record the final mix on the master recorder.

BOOST 0 BOOST 9

( BOOST 0 BOOST 9 )
This effect produces a tight low end and crisp high end. Higher values produce more bass and treble boost.

1. 2. 3. 4. 5.

Use the ZERO [U] key to return to the beginning of the song. Set the master recorder to the recording condition. Press the PLAY [R] key. Basic Operation When the song has been completely recorded, stop the master recorder and the MRS-4. To check the recording, rewind the master recorder and play the recording from the beginning.
Whenever you make any changes to a song on the MRS-4, the song is automatically saved on the SmartMedia card.

VOCAL 0 VOCAL 9

( VOCAL 0 VOCAL 9 )
This effect emphasizes the midrange, lending warmth and suppleness to vocals. Higher values produce more midrange emphasis.

Track number V-take number

3 V-take 8

Track 1
(V-take 1 8) Record on the specified V-take. In this example, let's select V-take 8.

E T1-1

Indicator Indicates an empty V-take.

Bounce

Press the [EXIT/NO] key several times to return to the main screen.
Carrying out the bounce function
Using manual punch-in/out
This section describes how to use manual punch-in/out to re-record a region of a previously recorded track.
Adjust the level balance, pan, and EQ of tracks 1 4.
To check the newly recorded content, move to the point of step 4, and press the PLAY [R] key. To redo punch-in/punch-out, repeat steps 4 7.
Press the [BOUNCE] key. The [BOUNCE] key lights up and the bounce function is activated.
If desired, you can also use the send/return effect and mixdown effect during bounce. (For details, see page 21, 25.)
On the target track, select the Vtakes that were used as bounce targets, return to the beginning of the song, and check the recording. At this time, the status keys of tracks 3/4 should be out, so that the tracks are muted. To redo the bounce process, repeat steps 5 9.
When playing back bounce target V-takes, the parameters previously set for that track will be active. Panning, EQ, and effect depth therefore may be different from the actual recording. To accurately monitor the content of the bounce target, reset the track parameter settings.
Repeatedly press the status key of the track on which you want to punch-in/out, until the key is lit in red. Raise the fader of the corresponding channel to a suitable position.
When the results are as desired, press the status key for that track so that the key lights in green.

Using auto punch-in/out

Auto punch-in/out is a function that lets you specify beforehand the region to be rerecorded. Punch-in will occur automatically when you reach the starting location (In point), and punch-out will occur automatically when you reach the ending location (Out point). The procedure is as follows. Setting the In/Out points
On the main screen, press the status keys 1/2 for the bounce target tracks 1/2, so that the keys are lit in red. Make sure that [ON/OFF] keys 1/2 and the [METRONOME] key are out.
While playing the instrument connected to the input, adjust the input sensitivity. If necessary, play back the recorder and use the faders of the mixer section to adjust the mix balance of your instrument and the playback of the tracks.

Return to the beginning of the song, and then press the PLAY [R] key while holding down the REC [O] key. The mixed signal of tracks is routed through the MASTER fader and recorded on the bounce target (V-takes 8 of tracks 1 and 2). The level meter L/R indication allows checking the level.
When bouncing in stereo, the odd-numbered track of the bounce destination is automatically recorded as the left channel and the even-numbered track as the right channel. By setting the ON/OFF keys 1/2 to ON, it is possible to add the input signal from inputs 1/2 to the bounced signal. The input signal from the AUX IN jacks and from the internal metronome is not recorded.
When the results are as desired, press the [BOUNCE] key so that the key goes out. The bounce function is turned off.
Re-recording only a specified region (Punchin/out function)
Punch-in/out is a function that lets you rerecord just a specified region of a previously recorded track. The action of switching a track that is in play mode to record mode is called "punch-in", and the action of switching back from recording to playback is called "punch-out". The MRS-4 provides two ways to do this. You can use the panel keys to punch-in/out manually ("manual punch-in/out"), or cause punch-in/out to occur automatically at previously specified points ("auto punchin/out").
4. Move to a point several measures earlier than where you want to punch-in, and press the PLAY [R] key to begin playback. When the metronome is on and playback is started from a point midway in a song, no precount clicks are heard. Depending on the start position, the metronome sound may start within a beat. 5.
When you come to the punch-in location, press the REC [O] key. The REC [O] key lights, and track recording begins from that location (punch-in). When you come to the punch-out location, press the REC [O] once more. The REC [O] key goes out, and the unit switches from recording to playback (punch-out).
Repeatedly press the status key of the track on which you want to punch-in/out, until the key is lit in red. Raise the fader of the corresponding channel to a suitable position. While playing the instrument connected to the input, adjust the input sensitivity.
Move to the point at which you want to punch-in, and press the [AUTO PUNCH IN/OUT] key. The [AUTO PUNCH IN/OUT] key flashes. This sets the "In point" at which recording will begin.
When recording is completed, stop the recorder. The display briefly shows "WAIT".
To stop the recorder, press the STOP [P] key. The display briefly shows "WAIT".

Mark number

When the mark is the closest to the current location, a dot appears here.
Moving to a mark location
Here's how to move to the location of a mark. This can be done in two ways: you can use key operations, or specify the mark number directly. Using keys to move to a mark
Use the up/down [PARAMETER/ VALUE] keys to select the desired mark number. As the mark number is changed, the unit also moves to that location.
Once deleted, a mark cannot be restored. The mark number 00 that corresponds to the beginning of a song cannot be deleted.

Assigning a mark

To assign a mark at a location in a song, proceed as follows.

Clearing a mark

You can clear (delete) an existing mark as follows.
Move to the point at which you want to assign a mark. If necessary, you can specify the current point in minutes/seconds/milliseconds.
A mark can be assigned either during playback or when stopped.
While the main screen is shown, press either the MARKER [U] or the MARKER [I] key. Each time you press the key, the unit moves to the next mark before or after the current location.
Mark Song Current location
While the main screen is shown, press the left [PARAMETER/ VALUE] key once. Then use the up/down [PARAMETER/VALUE] keys to select the desired mark number.
If the mark position and the current position do not match, the mark cannot be deleted. If no dot is shown at the bottom right of the mark number, use the MARKER [U]/MARKER [Y] keys to bring the marker position and the current position to match.
Press the [MARK/CLEAR] key. A mark will be assigned to the current location, and the mark number is shown.

SET 02

Playing back the same passage repeatedly (AB Repeat)
A-B Repeat is a function that repeatedly plays back a desired region of the song. This is useful when you want to listen to the same region repeatedly.
To stop repeat playback, press the STOP [P] key. Even after pressing the STOP [P] key to stop playback, you can perform repeat playback again as many times as desired, as long as the [A-B REPEAT] key is lit.
This section describes advanced mixing techniques using the input mixer and track mixer.
Assigning two inputs to a track
In the "Basic Operation" section, we learned how to record the signal from one input on one track. By using the input mixer, it is also possible to combine the signal from two inputs onto one track, or to record it on two tracks separately. The procedure is described below.
When only one recording track is selected
1. Move to the point at which you want to begin repeat playback, and press the [A-B REPEAT] key. The [A-B REPEAT] key flashes, and the repeat start location (point A) is specified. 2.

Use the status keys to select one of the two tracks you want to link. Use the left/right [PARAMETER/ VALUE] keys to call up the STL (stereo link) parameter.
Connect the master recorder to the MASTER [L]/[R] jacks and make the necessary preparations for mixdown ( p. 18). Connect the instrument or microphone to add to the mix to the [INPUT 1]/[INPUT 2] jacks. Set the [ON/OFF] keys 1/2 to ON. While listening to the sound, adjust the input sensitivity with the [INPUT LEVEL] controls 1/2.

INPUT 1

Use the up/down [PARAMETER/ VALUE] keys to set the STL parameter to ON.
OUTPUT INPUT 2 Track mixer L
When when the insert effect is used, the basic signal flow for inputs 1/2 remains same. Depending on the selected insert effect algorithm, the level at input 1 and 2 may be watched simultaneously for operation in both channels, or inputs 1 and 2 may operate independently.
While the main screen is shown, press the [TRACK PARAMETER] key. The track parameter menu for changing the settings for individual tracks appears.
When preparations are complete, play the instrument and perform mixdown. The input 1/2 signal is mixed to the track signal and sent to the master recorder. It is also possible to apply the mixdown effect to the mixed signal.
When bouncing the signal onto internal V-takes, the input signal can also be mixed in as described above.
When status key 1 or 2 was pressed in step 2, tracks 1 and 2 are linked. When status key 3 or 4 was pressed, tracks 3 and 4 are linked. When two tracks are linked, the following applies.
Press the [ON/OFF] key 1 or 2 to select the input on which to operate. Available parameters and their setting range are shown in the table below.
Linking two tracks (stereo link function)
This function allows you to link two tracks in the track mixer, so that their parameters (except the V-take selection) are adjusted in sync. This is convenient to control stereo material that was recorded on two tracks.
Input setting parameters and setting range
Parameter SEND/ RETURN SEND LEVEL Display

Setting range

Description
Determines whether input signal is routed to send/return effect. Adjusts signal level sent from input to send/return effect. Appears only if SEND parameter is set to ON. Adjusts panning (if only one input is active) or balance (if two inputs are active) for signal sent from input mixer to track and output.
When the stereo link is activated, the PAN parameter is set to 0 for both tracks. The values for all other track parameters (except V-take selection) are copied from the odd-numbered track to the evennumbered track. When the parameter in one track is changed, the parameter of the other track also changes accordingly (except V-take selection). When the fader for the odd-numbered track is operated, the level in both tracks changes. (The fader of the even-numbered track is inactive.) The PAN parameter operates as a BALANCE parameter that adjusts the level balance between the two (left and right) channels. To cancel the stereo link, set the STL parameter to OFF.

Specifying the start point using a preset mark Press the left [PARAMETER/VALUE] key once to bring up the mark number display (MARK indicator flashes). Then use the up/down [PARAMETER/VALUE] keys to specify the mark number. You can also use the MARKER [U]/MARKER [I] keys.
To execute the copy, press the [ENTER/YES] key. While the copy is in progress, the remaining time is shown on the display as a percentage, such as "doinG90". When the copy is complete, the "tr Edit" screen returns.
The length of the processing interval depends on setting conditions.
By pressing the [EXIT/NO] key instead of the [ENTER/YES] key, you can return to the display of the preceding step and make changes.
When you have specified the start point, press the [ENTER/YES] key. The screen for specifying the end point of the copy source appears.
Press the right [PARAMETER/ VALUE] key once to bring up the indication "CoPy" on the display. Then press the [ENTER/YES] key. The copy source track number and V-take number are shown. (In the initial condition, this is the V-take currently set for the track selected in step 2.)

Copy source track number

Copy source V-take number
Use the left/right [PARAMETER/VALUE] keys to move the flashing section, and use the up/down [PARAMETER/VALUE] keys to change the number.

CP T1-1

5. Erasing a specified segment
This operation erases the recorded data from the specified segment of a track, returning it to a silent (blank) state.
Press the [ENTER/YES] key. A screen will appear that allows you to set a start point for the erase action.

Erasing an entire track

If necessary, specify the track number and V-take number, and press the [ENTER/YES] key. Use the left/right [PARAMETER/VALUE] keys to move the flashing section, and use the up/down [PARAMETER/VALUE] keys to change the number. You can also specify a Vtake that is currently not selected for the track. When you press the [ENTER/YES] key, the copy destination track number and V-take number are shown. Reference [Track Editing]

Deleting a song (SONG DELETE)
To delete the entire contents of a song on the SmartMedia card, proceed as follows.
Protecting a song (SONG PROTECT)
You can protect the currently selected song, so that no further recording or editing is possible. When a song is protected, you can still change effects or parameters, but you cannot store the results on the SmartMedia card.
From the song menu, select "GrAdE". An indicator on the display shows the currently selected grade (HiFi or LONG).
Select "SnGCopy" on the song menu, and press the [ENTER/YES] key.
Select "SnG dEL" on the song menu, and press the [ENTER/YES] key. The number of the signal that will be deleted appears on the display.
Use the up/down [PARAMETER/ VALUE] keys to select the destination song number. Only empty song numbers can be selected.

DEL 01

If the currently selected song is protected, the "SnG dEL" menu item does not appear. Turn protection off first ( p. 49).
From the song menu, select "ProtECt" and press the [ENTER/ YES] key. The current protection on/off status is shown on the display.
It is not possible to change the grade setting for a song after you have recorded anything. Therefore this item does not appear for recorded songs.
3. Press the [ENTER/YES] key. The indication "YES NO" appears on the display.

PRT OFF

Use the up/down [PARAMETER/ VALUE] keys to select the grade setting.
To carry out the copy, press the [ENTER/YES] key. When copying is completed, the song menu appears again. By pressing the [EXIT/NO] key instead of the [ENTER/YES] key, you can return to the display of the preceding step and make changes.
Use the left/right [PARAMETER/ VALUE] keys to select the number of the song you want to delete. Numbers of protected songs or songs with no data do not appear.
Use the up/down [PARAMETER/ VALUE] keys to switch the protection status between on and off.
Press the [ENTER/YES] key. The indication "YES NO" appears on the display.

PRT ON

By pressing the [EXIT/NO] key you can return to the preceding screen.
To carry out the deletion, press the [ENTER/YES] key. When deletion is completed, the song menu appears again. (If the current song was deleted, the song with the lowest number is read in.) By pressing the [EXIT/NO] key instead of the [ENTER/YES] key, you can return to the display of the preceding step and make changes.

Bounce/mixdown During bounce/mixdown, change the rhythm machine connection over to the [INPUT 1]/[INPUT 2] jacks. If you synchronize operation of the MRS-4 and the rhythm machine, you can mix the rhythm machine sound with the playback sound from tracks for bounce/mixdown. The rhythm machine mix ratio can be adjusted with the [INPUT LEVEL] control 1/2.
You can adjust the display contrast and control the backlight as follows.
While the main screen is shown, press the [SONG/UTILITY/TUNER] key, and then use the left/right [PARAMETER/VALUE] keys to bring the indication "Lcd" onto the display.
Press the [ENTER/YES] key. The first item of the LCD menu is shown.
INPUT 1/2 MIDI OUT LINE OUT MIDI IN

Rhythm machine

Use the left/right [PARAMETER/ VALUE] keys to select the item, and use the up/down [PARAMETER/ VALUE] keys to adjust the setting value. Available items and their setting range are shown in the table below. Reference [Other Functions]
You can also apply the send/return effect and mixdown effect to the rhythm machine sound ( p. 21, 25).
Display items and setting range
Item CONTRAST BACK LIGHT Display

CONT LIT

0, 1, 2 ON, OF
Description Adjust the display contrast. Switch the display backlight on and off.

MIDI OUT

MIDI IN
The output at the MASTER [L]/[R] jacks allows you to monitor the sound from the instrument currently being recorded, the playback sound of MRS-4 tracks, and the rhythm machine sound input via the [AUX IN] jacks. However, the rhythm machine sound cannot be recorded on a track.
Recorder Physical tracks: 4 Virtual takes: 32 (8 V-takes per track) Maximum number of simultaneous recording tracks: 2 Maximum number of simultaneous playback tracks: 4 Recording media: SmartMedia card MB (3.3V) Recording grade: 32 kHz (HiFi) / 16 kHz (Long) Maximum recording time (converted to single monaural track): 16 MB = 8 min. or more (HiFi), 16 min. or more (Long) 32 MB = 16 min. or more (HiFi), 33 min. or more (Long) 64 MB = 33 min. or more (HiFi), 67 min. or more (Long) 128 MB = 67 min. or more (HiFi), 135 min. or more (Long) Marker function: 50 points (per song) Locate function: min/sec/ms or measure/beat Track editing functions: Copy & paste, erase, exchange Punch-in/out function: Manual/auto Other functions: Bounce, A-B repeat Mixer Faders: Level meter indicator bars: Track parameters: Equalizer: Stereo Link: Effects Mixdown effect: Send/return effect: Insert effect: Tuner function: Metronome Tempo: Time signature: Precount: Maximum number of songs: A/D converter: D/A converter: Sampling frequency: Display: Inputs Inputs: Input level: Input impedance: AUX input (L/MONO, R): Outputs Master out: Rated output level: Output impedance: Headphone output: MIDI Dimensions: Weight: Power requirements: RCA type phono jacks (L/R) -10 dBm (into load impedance 10 kilohms or higher) 1 kilohm max. standard stereo phone jack, 50 mW (into 32 ohms load) OUT 2 standard mono phone jacks -50 to +4 dBm, continuously variable 1 to 500 kilohms, continuously variable 2 standard mono phone jacks Input impedance 10 kilohms (mono), 20 kilohms (stereo) 40.0 250.0 0/4-8/4 Off, 15 20-bit, 64x oversampling 20-bit, 8x oversampling 32 kHz MRS-4 original LCD (with backlight) Power, Boost, Vocal Hall, Room, Doubling, Delay, Chorus Compressor, Limiter, Cabinet Simulator, Mic Pre) Chromatic auto tuner 45 mm x 5 (Track 1 4, Master) 8 (Input 1/2, Track 1 4, Master L/R) Equalizer, Effect Send, Pan (Stereo operation: balance) High (f:Hz, Gain: 12 dB) Low (f:Hz, Gain: 12 dB) Tracks 1 + 2 or 3 + 4, selectable

Web site of Zoom Corporation: http://www.zoom.co.jp/

Supplied accessory:

220 (W) x 165 (D) x 56.3 (H) mm 700 g (without batteries) DC 9V, 300 mA from AC adapter Zoom AD-batteries IEC R6 (size AA); battery life 5 hours or more (with alkaline batteries) SmartMedia card (32 MB)
0 dB = 0.775 Vrms Design and specifications subject to change without notice.
The recorded sound is distorted If the MRS-4 does not seem to function normally, check the following points first. Check whether the input sensitivity setting ([INPUT LEVEL] controls 1/2) was appropriate. Lower the track faders or MASTER fader so that the 0 (dB) dot of the level meter does not light. If the EQ gain of the track mixer is set extremely high, the sound may be audibly distorted even if the fader is lowered. Set the EQ to an appropriate value. Mixdown effect does not operate Make sure that the [SEND/RETURN] key is flashing or lit in green. If the key is not lit, press the key to make it light in green.

Playback problems

No sound, or very low volume Check the connections to your monitor system, and the volume of your monitor system. Make sure that the status keys are lit in green. If a key is not lit, press the key to make it light in green. Make sure that the track faders and the MASTER fader are raised. Make sure that a SmartMedia card is inserted in the card slot. Operating the fader does not affect the volume On channels for which stereo link is turned on, the fader of the even-numbered channel will have no effect. Either turn stereo link off ( p. 39), or operate the fader of the odd-numbered channel. Recorder stops midway during play When performing playback with a status key lit in red, a temporary file is created internally by the MRS-4. If the remaining capacity of the SmartMedia card then becomes low, playback is stopped midway through the song. In such a case, press the status key so that it goes out or is lit in green.
Noise occurs during mixdown Make sure that the [ON/OFF] keys 1/2 are out. Check whether the mixdown effect is set to an extreme setting.

Problems with MIDI

Cannot synchronize with external MIDI device Make sure that the [MIDI OUT] connector on the MRS-4 is properly connected to the MIDI IN connector on the external MIDI device with a MIDI cable. Make sure that the external MIDI device is set up to receive a timing clock signal for synchronized operation. Make sure that the external MIDI device is set to the playback condition. Make sure that the metronome tempo and time signature settings match the song on the external MIDI device.
Problems with recording Problems with effects