Troubleshooting

The SunÞre Subwoofer is expertly designed and built to provide years of trouble-free performance. Most problems that occur can usually be solved by checking your setup or making sure that the components connected to the ampliÞer are on and fully operational.

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 SunÞre Dealer for assistance.

Not enough bass

•Check that your preampliÞer’s outputs are connected to the subwoofer’s line level inputs and not to 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 func- tion.

•If your preampliÞer 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 preampliÞer’s single subwoofer/LFE output to the subwoofer’s right and left inputs.

•Make certain the subwoofer is in a corner location, Þring 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 Þring into one of the walls, leave three inches of clearance between the driver and the wall.

•Home Theater preampliÞers 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.

User's Manual

•Check that your preampliÞer 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 preampliÞer’s subwoofer/LFE output has an adjustable crossover frequency, make sure that the SunÞre subwoofer’s own crossover point is set higher or part of the bass range will be missing.

Not enough bass in a 5.1 system

•5.1 Home Theater preampliÞers 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 preampliÞer may have a way of turning the subwoofer output off entirely, so check that it is always on.

•Check that the preampliÞer 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 preampliÞer 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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Sunfire 12 user manual Troubleshooting, Not enough bass in a 5.1 system
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12 specifications

The Sunfire 12 is a state-of-the-art subwoofer designed to deliver unparalleled audio performance for both music lovers and home theater enthusiasts. Known for its deep, powerful bass response, the Sunfire 12 has become a popular choice among audio engineers and consumers alike. This subwoofer embodies a blend of innovative technology and practical design, making it a standout option in the competitive subwoofer market.

One of the hallmark features of the Sunfire 12 is its impressive 12-inch high-excursion driver. This driver is engineered to move more air than typical subwoofers, resulting in profound low-frequency output. The driver is complemented by a unique Dual Voice Coil design, which allows for greater control and improved linearity during operation, ensuring that dynamic audio passages are reproduced with precision.

The subwoofer also incorporates Sunfire’s patented "Tracking Downconverter" technology. This advanced power supply design ensures that the Sunfire 12 can deliver consistent power output, even during the most demanding audio peaks. The result is a dramatic increase in efficiency, which translates to powerful bass without distortion, even at high volumes.

Another notable characteristic of the Sunfire 12 is its compact size. While it delivers deep, resonant bass, the subwoofer's enclosure is significantly smaller than traditional models. This compact design allows for flexible placement in a variety of home environments, making it an ideal choice for those with limited space. The elegant aesthetic of the enclosure ensures that it can blend seamlessly into any room décor.

The Sunfire 12 also features a sophisticated set of adjustable controls. These allow users to fine-tune the subwoofer’s performance to match the acoustics of their space, ensuring optimal sound quality regardless of the room’s dimensions. The built-in crossover and phase control further enhance the ability to integrate the subwoofer with existing sound systems, allowing for a customized listening experience.

With its robust construction and cutting-edge technologies, the Sunfire 12 sets a high standard for compact subwoofers. Whether for music playback or home theater applications, the Sunfire 12 delivers an immersive audio experience, making it a top choice for discerning audiophiles seeking powerful bass without compromise.
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