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© 1999 Tandy Corporation.

All Rights Reserved.

RadioShack and Optimus are registered trademarks used by Tandy Corporation.

Cat. No. 32-1240

Single Channel 170 MHz Wireless
FM PA Amplifier System

Your Optimus Single Channel 170
MHz Wireless FM PA Amplifier is de-
signed for classrooms, meeting
rooms, or anywhere sound reinforce-
ment is desired. It can serve as a sin-
gle channel wireless microphone
receiver, a wired microphone amplifi-
er or both. It has a 20 watt audio am-
plifier and two audio inputs you can
control separately. It is powered by AC
120V/60Hz or DC 12V.

Note: This system requires a wireless
or wired microphone (not supplied) for
operation. Your local RadioShack
store has a variety of wireless and
wired microphones.

170 MHz Operation Frequency 

 to

assure accurate sound reproduction. 

Volume Controls 

 let you adjust the

volume of a wireless and wired micro-
phone.

Compander Noise Reduction 

greatly reduces low-frequency noises.

Internal Helical Antenna 

 receives

microphone signals up to 150 feet
away.

Wired and Wireless Microphone
Use Simultaneously 

 lets you use

wired and wireless microphones at the
same time.

Your amplifier is ETL listed to UL stan-
dards and meets all applicable FCC
standards.

We recommend you record your amplifi-
er’s serial number here. The number is
on the back of the amplifier.

Serial Number____________________

WARNING:

 To reduce the risk of fire or shock

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

CAUTION

RISK OF ELECTRIC SHOCK. 

DO NOT OPEN.

CAUTION

: TO REDUCE THE RISK OF

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

This symbol is intended to alert
you to the presence of uninsu-
lated dangerous voltage within
the product’s enclosure that might
be of sufficient magnitude to con-
stitute 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 accom-
panying this product.

!

!

32-1240.fm  Page 1  Monday, July 26, 1999  12:09 PM

Summary of Contents for Single Channel 170 MHz Wireless FM PA Amplifier System

Page 1: ...ises Internal Helical Antenna receives microphone signals up to 150 feet away Wired and Wireless Microphone Use Simultaneously lets you use wired and wireless microphones at the same time Your amplifi...

Page 2: ...r there is no guarantee that in terference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be deter mined by tu...

Page 3: ...ifier s 120V AC 60Hz jack Then plug the other end of the cord into a standard AC out let DC Power Caution You must use only the sup plied DC power cord If you lose or damage this cord order a replacem...

Page 4: ...t the wired microphone to the amplifier s MIC jack located on the back of the amplifier 6 Set the microphone switch to ON 7 Adjust your amplifier s wired micro phone volume control to the desired leve...

Page 5: ...urned on Check the fuse and replace it if needed No sound wireless microphone Make sure your transmitter and amplifier are operating on the same frequency Adjust the wireless microphone volume control...

Page 6: ...5A 125V fuse 5 Insert the fuse holder s cap back into the socket on the back of the amplifier 6 Carefully tighten the fuse holder s cap by rotating it clockwise Care To enjoy your Optimus Single Chan...

Page 7: ...V Fuse 1 5A 125V Audio Output 10 THD 13 W Distortion of Wired Microphone at Maximum Output 3 Sensitivity of Wired Microphone 5mV Wired Microphone S N Ratio 50dB Frequency Response of Wireless Micropho...

Page 8: ...ct 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 un less otherwise provided by law a corr...

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