Optimus AMX-25 User Manual

2
© 1997 Tandy Corporation.
All Rights Reserved.
Optimus is a registered trademark used by Tandy Corporation.
RadioShack is a trademark used by Tandy Corporation.
FEATURES
Your Optimus 900 MHz Wireless Am-
plified Speakers bring you the latest
in wireless speaker technology. Oper-
ating in the 900 MHz band, this
speaker system’s signals easily travel
through walls and floors, delivering
high-quality stereo sound to almost
anywhere in or around your home.
Now you do not need to place the
speakers in the same room as your
stereo system to hear your favorite
programs.
The system includes a transmitter
that connects to your audio source,
and two speakers that receive signals
from the transmitter.
The speaker system’s features in-
clude:
Two-Wa
y
, Bass Reflex Speaker De-
si
g
n
— provides excellent sound re-
production from even the most
demanding audio sources.
Bass Boost
— adds a deeper, richer
bass sound.
10-Watt Amplifier
— produces clear
sound throughout the high and low
frequency ranges.
Optional Speaker Bracket
— (avail-
able through RadioShack Unlimited)
lets you easily mount your speakers
on the wall.
Char
g
er Jack
— lets you charge the
PRO-100 Wireless Headphones.
THE FCC WANTS YOU
TO KNOW
Your speaker system might cause TV
or radio interference even when it is
operating properly. To determine
whether your speaker system is caus-
ing the interference, unplug your
speaker system’s transmitter. If the
interference goes away, your speaker
system is causing it.
Try to eliminate the interference by:
• Moving your speakers away from
the receiver
• Connecting your speakers to out-
lets that are on a different electri-
cal circuit from the receiver
• Contacting your local Ra-
dioShack store for help
Note:
Your speakers are subject to
interference from other 900 MHz de-
vices such as wireless headphones,
cordless phones, or other wireless
speakers that operate on the same
frequencies. If you experience inter-
ference, try moving the speakers
away from the other devices.
40-1372.fm Page 2 Tuesday, August 10, 1999 3:25 PM

Optimus AMX-25 Specifications

Transmitter Specifications

operating frequency range	912.5–914.5 MHz
power source	18V DC, 150 milliamps

Speaker Specifications

frequency response	50 Hz–15 kHz
S/N ratio	55 dB
stereo separation	≥ 20 dB
audio distortion	≤2%
operating range	150 Feet (Open Field)
automatic frequency control (AFC)	More than ±150 kHz
tuning range	≥913.5 ±1.25 MHz
minimum volume hum	< 2mV
bass boost effect (100 Hz)	8 ±2 dB
power	10 Watts RMS
power source	15V DC, 800 milliamps
speaker elements	2-Inch Tweeter, 4-Inch Woofer