Radio Shack SSM-1750 User Manual

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SSM-1750 4-Channel
Stereo Audio Mixer

Owner’s Manual

Please read before using this equipment.

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ˆ

Contents

Features .................................................................................................................................. 4

Preparation ............................................................................................................................. 6

Presetting the Controls ...................................................................................................... 6

Connecting the Outputs .................................................................................................... 6

Connecting Inputs ............................................................................................................. 6

Connecting Microphones ........................................................................................... 7

Connecting Power ............................................................................................................. 7

Connecting a Lamp ........................................................................................................... 7

Connecting Headphones ................................................................................................... 7

Listening Safely ......................................................................................................... 7

Operation ................................................................................................................................ 7

Presetting the Input Signal Levels ..................................................................................... 8

Presetting the Channel Inputs ................................................................................... 8

Presetting a Microphone ............................................................................................ 9

Presetting the Auxiliary Input ..................................................................................... 9

Mixing the Inputs ............................................................................................................. 10

Playing One Input Source ........................................................................................ 10

Monitoring a Second Input Source ........................................................................... 10

Switching to the Second Input Source ..................................................................... 11

Notes on Mixing ....................................................................................................... 11

Using the Special Controls .............................................................................................. 11

Using the Tone Controls ........................................................................................... 11

Using Gain ............................................................................................................... 11

Setting the Sound Balance ...................................................................................... 12

Using a Microphone ........................................................................................................ 12

Using an XLR Microphone ....................................................................................... 12

Using an AUX Microphone ....................................................................................... 12

Using TA LKO VER .................................... ... .................................... ......................... 12

Using MUTE LEVEL ................................ ... ............................................................. 12

Using P AN ................................................................................................................ 12

Using SOUND EFFECTS ................................................................................................ 12

Using ECHO EFFECTS .................................................................................................. 12

Adjusting the Echo Delay, Repeat, and Volume ...................................................... 13

Using Sound Effect Devices ............................................................................................ 13

Playing the Signal from the Sound Effect Device .................................................... 13

Playing Input Signals through the Sound Effect Device ........................................... 13

©

2000 Tandy Corporation.

RadioShack and RadioShack.com are trademarks used by Tandy Corporation.

2

All Rights Reserved.

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Care .................................................................................................................................. ..... 14

Replacing the Fuse ................................... ..................................... ................................. 14

Troubleshooting ................................................................................................................... 14

Specifications ...................................................................................................................... 15

WARNING:

shock hazard, do not expose this product to rain
or moisture.

To reduce the risk of fire or

CAUTION

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

CAUTION:

ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICE­ABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED PERSONNEL.

!

TO REDUCE THE RISK OF

This symbol is intended to alert
you to the presence of uninsu­lated dangerous voltage within
the product’s enclosure that might
be of sufficient magnitude to con­stitute a risk of electric shock. Do
not open the product’s case.

This symbol is intended to inform
you that important operating and
maintenance instructions are
included in the literature accom­panying this product.

!

3

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ˆ

Features

Your RadioShack 4-Channel Stereo Audio Mixer is a sophisticated control center, perfe ct for
mixing sound from multiple playback sources such as a microphone, tuner, CD player, turnta­ble, or the audio output from a VCR.

It is ruggedly constructed for home or professional use and its wide-range volume controls let
you adjust sound levels to achieve the right mix for playing through your speaker system or for
recording. The mixer's many features give you almost limitless sound combinations.

1

DJ MIC

— lets you connect a balanced,
low impedance microphone with an XLR
plug.

2

BASS/MID/HIGH

tone of the selected input for customized
sound.

3

4PAN

4

GAIN

— individual controls let you fine

tune each input’s volume.

— lets you control the output of the

DJ MIC

and

—

let you adjust the

AUX MIC/LINE

.

Features

5

6

7

8

LEVEL

phones' volumes before mixing them in.

TALKOVER

the input sources so you can talk over
them using the microphone.

MUTE LEVEL

ground music volume when using

OVER

CH1, CH2, CH3, CH4

trols

mixing and fading.

— lets you adjust the micro-

— decreases the volume of

— lets you adjust the back-

.

Slide Volume Con-

— for fingertip control of sound

TALK-

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9 Assign Controls—

let you select the in-

put sources to be mixed.

10

CROSS FADER

— lets you smoothly

switch between two input sources.

11

SOUND EFFECT

— let you create a spe­cial sound performance using the six
preprogrammed sound effects.

12

CUE LEVEL

— lets you adjust the head-

phone's volume.

13

CUE ASSIGN

— lets you select the chan­nel where the desired audio input source
is located so you can monitor and pre­pare it before mixing it in.

14

BALANCE

—

lets you adjust the sound
balance between the left and right
speakers.

15

MASTER
DJ MIG, AUX, CH1, CH2, CH3, CH4, RE­CEIVE

16

MONO/STEREO

— adjusts the overall volume of

input, and sound effects.

Selector

— lets you set

the output to stereo or monaural.

17

POWER

18 Lamp Jack

—

turns the mixer on and off.

— lets you install a 12V/3W

lamp to light up the mixer controls.

19

Controls —

ECHO

let you tailor the
sound to compensate for a location’s
conditions or for personal preference.

(Volume Unit) —

20

VU

two meters indi-

cate the total stereo output signal levels.

21 Stereo Line Outputs

— let you connect
the mixer's output to your receiver/am­plifier and tape deck so you can play the
sounds from your input sources through
your speaker system, and record them.

22 Sound Effect Jacks

— let you connect
another sound effect device, such as an
echo reverb, and either play the signal
from it or play another input's signal
through it. You can also vary the volume
of the signal.

23 Stereo Line Inputs —

let you connect

most line-level audio sources such as a

CD player, tape deck, tuner, camcorder,
or VCR.

24 Auxiliary Microphone Input

connect a low impedance microphone

1

/4-inch plug.

with a

25 Stereo Phono Inputs

low-level audio sources, such as a turn­table with a magnetic cartridge.

26 Mono Line Input

mono input source, such as a wireless
microphone receiver.

Features

— lets you

— for connecting

— lets you connect a

5