Instruction manual

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-

o g y d ea le r.

Model 642e 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 350W RMS

Distortion (ampliﬁer) <0.5%

Frequency Response 25Hz – 300Hz ±3 dB

Low Level (line) 20k Ohms

Peak Output 107dB SPL into 2500 cubic Feet

Dimensions (WxHxD) 19 x 21 x 20½ in; 483 x 534 x 521mm (Depth with Grille)

Weight 65lbs/29.5kg

Power Requirements 110V AC 50/60Hz; 240V AC 50/60Hz

those in effect at the time of printing. Atlantic Technology reserves the

right to change speciﬁcations or designs at any time without notice.

Dolby Digital, AC-3, Dolby Stereo and Dolby Pro Logic are trademarks

of Dolby Laboratories Licensing Corporation.

Manufactured under license from THX Ltd. THX is a trademark of THX

Problem Possible Cause Possible Solution

No bass output AC power cord unplugged or Plug into a working outlet.

plugged into a non-working outlet.

Input cables not securely Check all connections, then try another

connected or defective. input cable.

Audible buzz or hum Input cable not securely connected Check all connections, then try another

or defective. input cable.

Ground loop through antenna or Test by disconnecting antenna and/or cable

cable TV system input. system input leads. If hum goes away, install

isolation balun(s) at that point.