©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
