Radio Shack 32-2056 User Manual

©2008.

RadioShack Corporation. 

All rights reserved. 

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

08A08

32-2056

Printed in China

32-2056

Thank you for purchasing your Stereo 4-Channel 

Microphone Mixer from 

RadioShack

. It enables you 

to mix and add sound from up to four microphones or 

two audio input sources, such as a CD player, tuner, 

or cassette player. Please read this user’s guide before 

installing, setting up and using your new product.

What’s Included

Mixer

  User’s Guide

Specifications

Input Sensitivity

:

Mic ......................................................................................  1.5 mV/600 ohm

Line ..................................................................................... 150 mV/27k ohm

Output Level at 10k Ohm Load ............................................................. 1.2V

Input Overload

:

Mic ....................................................................................more than 250 mV

Line ...........................................................................................more than 6V

Distortion.................................................................................less than 0.2%

Signal-to-Noise Radio ......................................................better than 60 dB

Frequency Response .................................................. 10~35,000 Hz ± 3 dB

Power Requirements

:

DC ..........................................................................................One 9V battery

AC Adapter  .............................................................Output: 9VDC, 100 mA

.....................................................................................Input: 120V AC, 60 Hz

Dimensions (H×W×D)  ................................... 2

3

/

16

 × 10 

5

/

8

 × 6 

5

/

16

 inches

..........................................................................................  (5.5 × 27 × 16 cm)

Weight  ........................................................................... 1 lb 10.5 oz. (850 g)

Specifications are subject to change and improvement without notice. 

Actual product may vary from the images found in this document.

Recycle Rechargeable Batteries

Placing rechargeable batteries in the trash can be harmful to the 

environment. Instead, recycle old rechargeable batteries at your 

local

 RadioShack

 store free of charge.

 RadioShack 

participates

in the RBRC

©

 battery recycling program, and is committed to 

preserving the environment and conserving natural resources. Call 

1-800-THE-SHACK (1-800-843-7422) for more information.

Limited Warranty

This product is warranted by 

RadioShack

 against manufacturing defects in 

material and workmanship under normal use for one (1) year from the date of 

purchase from 

RadioShack

 company-owned stores and authorized 

RadioShack

franchisees and dealers. EXCEPT AS PROVIDED HEREIN, 

RadioShack

 MAKES 

NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING 

THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, 

ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED 

WARRANTIES CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, 

RadioShack

 SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER 

OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS 

OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFORMANCE 

OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, 

INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM 

INCONVENIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR 

ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN 

IF

RadioShack

 HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Some states do not allow limitations on how long an implied warranty lasts or 

the exclusion or limitation of incidental or consequential damages, so the above 

limitations or exclusions may not apply to you.

In the event of a product defect during the warranty period, take the product 

and the 

RadioShack

 sales receipt as proof of purchase date to any 

RadioShack

store. 

RadioShack

 will, at its option, unless otherwise provided by law: (a) correct 

the defect by product repair without charge for parts and labor; (b) replace the 

product with one of the same or similar design; or (c) refund the purchase price. 

All replaced parts and products, and products on which a refund is made, become 

the property of 

RadioShack

. New or reconditioned parts and products may be 

used in the performance of warranty service. Repaired or replaced parts and 

products are warranted for the remainder of the original warranty period. You will 

be charged for repair or replacement of the product made after the expiration of 

the warranty period.

This warranty does not cover: (a) damage or failure caused by or attributable to 

acts of God, abuse, accident, misuse, improper or abnormal usage, failure to 

follow instructions, improper installation or maintenance, alteration, lightning 

or other incidence of excess voltage or current; (b) any repairs other than those 

provided by a 

RadioShack

 Authorized Service Facility; (c) consumables such as 

fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance 

costs; or (f) costs of product removal, installation, set-up service adjustment or 

reinstallation.

This warranty gives you specific legal rights, and you may also have other rights 

which vary from state to state.

RadioShack

 Customer Relations

300 RadioShack Circle, Fort Worth, TX 76102 

12/99

www.radioshack.com

Protect the environment by recycling used electronics. Go to 

www.ecyclingcentral.com to find a recycle location near you.

Stereo • 4-Channel

Microphone Mixer

POWER Switch

BATTERY LOW 

Indicator

CHANNEL 1-4

Setting Up Your Mixer

Installing Batteries

1.

Remove the battery cover.

2.

Insert one 9V battery (not 

supplied) in the battery 

compartment matching 

the polarity symbols (+ and 

–) marked on the back of the 

battery cover.

3.

Replace the battery cover.

Replace the battery when 

BATTERY LOW

 indicator lights.

Battery Notes

•

Dispose of old batteries promptly and properly.

•

Do not burn or bury batteries.

•

Use only a fresh battery of the required size and recommended 

type.

•

If you do not plan to use the mixer for more than a week, 

remove the battery. It can leak chemicals that can damage 

electronic parts.

Using AC Power

Connect a 9V AC adapter (not 

supplied) to the DC 9V jack. 

Connect the other end to the 

power source.

Notes:

• Always connect the AC adapter to the mixer before you

connect it to AC power. When you finish, disconnect the

adapter from AC power before you disconnect it from the

mixer.

• Using an adapter that does not meet the specifications could

damage the mixer or adapter.

Presetting the Mixer

To prevent accidental audio mixing or channel overdrive, 

set

MONO/STEREO

to

 MONO

, set 

POWER ON/OFF

 to 

OFF

, and slide 

Channel 1–4

 to 

0

 (minimum) before you 

connect to your power supply.

A sudden high output from the mixer could damage audio 

devices connected to the mixer and could damage your 

hearing, especially if you use headphones.

Presetting Audio Devices

Make sure you power off the devices before you connect 

them to the mixer. 

To avoid sudden sound outputs from connected audio 

devices, adjust the volume of the connected audio device 

to its lowest level.

DC 9V

MONO/STEREO

Connections

Use shielded audio cables (not supplied) for all input 

connections. The connected input source’s signals are 

routed to the corresponding channel on the mixer.

Two stereo inputs

Connect the line level outputs from one device to the 

mixer’s 

AUX 1 INPUT R

 and 

L

 jacks. Connect the line level 

outputs from the second device to the mixer’s 

AUX 2 

INPUT R

 and 

L

 jacks.

Four stereo sources as monaural inputs

Use shielded Y-adapters (not supplied) at each source’s left 

and right outputs, and connect a separate stereo source to 

each input jack (

AUX 1 R

,

AUX 1 L

,

AUX 2 R

, or 

AUX 2 L

)

on the mixer.

Four monaural inputs

Connect each monaural device to each input jack (

AUX 1 R

,

AUX 1 L

,

AUX 2 R

, or 

AUX 2 L

) on the mixer.

Two monaural sources as stereo inputs

Use shielded Y-adapters (not supplied) at each source’s 

monaural outputs, and connect one source to 

AUX 1 R 

and

L

.

Connect the other source to 

AUX 2 R

 and 

L

.

Four microphones 

Connect up to four microphones to the mixer’s 

MIC

jacks

(

1

–

4

)

. Each microphone signal is routed to the mixer’s 

corresponding channel.

If you connect an audio device and a microphone so they 

are output to the same channel, the signals from both 

devices are mixed and controlled by the mixer.

Output

To play the mixer’s output through your speaker system (at 

parties, dances, conferences, etc.), use an audio patch cord 

(not supplied) to connect the mixer’s 

OUTPUT L

 and 

R

jacks

to your receiver or amplifier’s line input jacks.

To record the mixer’s output, use an audio patch cord (not 

supplied) to connect the mixer’s 

OUTPUT L

 and 

R

 jacks to 

your recording device’s line input jacks.

OUTPUT L

 and 

R

AUX2 L

 and 

R AUX1 L

 and 

R

MIC jacks