Subwoofer Troubleshooting Guide | 11 |
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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 | Possible Cause | Possible Solution |
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| No bass output | AC power cord unplugged or | Plug into a working outlet. |
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| plugged into a |
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| Input cables not securely | Check all connections, then try another |
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| connected or defective. | input cable. |
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Audible buzz or hum | Input cable not securely connected | Check all connections, then try another |
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| or defective. | input cable. |
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| Ground loop through antenna or | Test by disconnecting antenna and/or cable |
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| cable TV system input. | system input leads. If hum goes away, install |
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| isolation balun(s) at that point. |
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Model 642e SB Specifications
Type/Features | Powered subwoofer, sealed enclosure |
| High efficiency tracking amplifier |
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| Continuous |
| Variable low level stereo inputs and low level outputs |
| Absolute phase invert switch |
| Auto signal sensing on/off/bypass |
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Bass Driver | 12” |
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Output Power | 300W RMS |
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Distortion (amplifier) | <0.5% |
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Frequency Response | 25Hz – 300Hz ±3 dB |
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Low Level (line) | 20k Ohms |
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Peak Output | 105dB SPL into 2000 cubic Feet |
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Dimensions (WxHxD) | 19 x 21 x 20½ in; 483 x 534 x 521mm (Depth with Grille) |
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Weight | 65lbs/29.5kg |
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Power Requirements | 110V AC 50/60Hz; 240V AC 50/60Hz |
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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.
