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Instruction Manual
Subwoofer Troubleshooting Guide
Once your subwoofer is set up, you should have many years of maintenance free enjoyment from your system. However, if you should encounter a
problem, refer to the following guide to help you find the solution. If a problem persists, you should contact your local authorized Atlantic Technol-
ogy dealer.
Problem
No bass output
Audible buzz or hum
Model 64 SB Specifications
Type/Features
Powered subwoofer, sealed enclosure
High efficiency tracking amplifier
2-inch, four layer vented aluminum voice coil, vented motor
Continuous 40–140Hz crossover, 18dB/octave low pass output
Variable low level stereo inputs and low level outputs
Absolute phase invert switch
Auto signal sensing on/off/bypass
Bass Driver
12" long-throw composite cone
Output Power
300W RMS
Distortion (amplifier)
<0.5%
Frequency Response
25Hz – 300Hz ±3 dB
Low Level (line)
20kΩ
Peak Output
105dB SPL into 2000 cubic Feet
Dimensions (WxHxD)
19.00 x 21.00 x 18.50in; 483 x 534 x 470mm
including side panels
Weight
65lbs/29.5kg
Power Requirements
110V AC 50/60Hz; 240V AC 50/60Hz
Specifications are those in effect at the time of printing. Atlantic Tech-
nology reserves the right to change specifications or designs at any time
without notice. THX is a registered trademark of Lucasfilm Ltd. Dolby
Digital, Dolby Stereo, and Dolby Pro Logic are trademarks of Dolby Labo-
ratories Licensing Corporation. DTS is a registered trademark of Digital
Theater Systems, Inc.
Possible Cause
AC power cord unplugged or
plugged into a non-working outlet.
Input cables not securely
connected or defective.
Input cable not securely connected
or defective.
Ground loop through antenna or
cable TV system input.
Subwoofer Troubleshooting Guide
Possible Solution
Plug into a working outlet.
Check all connections, then try another
input cable.
Check all connections, then try another
input cable.
Test by disconnecting antenna and/or cable
system input leads. If hum goes away, install
isolation balun(s) at that point.
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