Troubleshooting
The Sunfire Subwoofer is expertly designed and built to provide years of
The following information will help you deal with common problems you may ex- perience during normal use. If a problem still persists, please contact your Sunfire Dealer for assistance.
Not enough bass
•Check that the input connections are going to the input terminals and not the output terminals. In other words, the connections from your preamplifier must go to the subwoofer’s line level inputs in- stead of the line level high pass outputs. If they are connected to the outputs by mistake, the bass will be weak but the subwoofer will still function.
•If your preamplifier has a single subwoofer/LFE output jack, make sure it connects to the subwoofer’s Left (Mono) input. If the bass is still not enough after checking all the remaining points, use a Y cable to connect the preamplifier’s single subwoofer/LFE output to the subwoofer’s right and left inputs.
•Make certain the subwoofer is in a cor- ner location, firing at 45 degrees into the walls formed by the corner. This is not absolutely essential, but will maximize the bass output and give the smoothest possible response. If you place the unit so one of the drivers is firing into one of the walls, leave three inches of clear- ance between the driver and the wall.
•Home Theater preamplifiers usually have a way of adjusting the level of the subwoofer/LFE output, either using a remote control or with a small volume knob on the back panel. Make sure that this is adjusted correctly.
•Check that your preamplifier or receiver’s sub output is turned on. Some systems only have a sub output signal when the front speakers are set to “small.”
•If the preamplifier’s subwoofer/LFE output has an adjustable crossover fre- quency, make sure that the subwoofer’s own crossover point is set to BYPASS or part of the bass range will be missing.
Not enough bass in a 5.1 system
•5.1 home theater preamplifiers usually have a bass management system which allows the bass to be redirected among your speakers. For example, the bass normally present in the front speak- ers can be redirected to play in the subwoofer, or the subwoofer can play the bass from all the speakers, in addi- tion to its dedicated LFE (low frequency effects) channel. Make sure that all of the bass management options are cor- rectly set. The preamplifier may have a way of turning the subwoofer output off entirely, so check that it is always on.
•Check that the preamplifier calibration procedure is correctly adjusted. Usually, the preamp will send a test tone through all the speakers in your system, allowing you to adjust (trim) the volume of each channel until they are all playing at the same level.
•If the bass is weak only when playing 5.1 surround sources, check that your preamplifier is correctly set to decode the 5.1 surround modes, such as Dolby Digital or DTS.
•DVD discs have a menu which allows you to select which soundtrack to play. Check that the correct 5.1 surround audio soundtrack is selected, otherwise it may just play stereo into your preamp and you won’t get the true LFE signal into the subwoofer.
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