Sunfire Home Theater System manual Overview, Drivers, Amplifier

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Overview

Your Sunfire Subwoofer is designed to give you the best possible low-frequency sound quality for your Home Theater ex- perience. It incorporates a tremendously powerful built-in amplifier and a pair of drivers to produce tight, floor-rumbling bass down to 22 Hz, that you can feel as well as hear.

The subwoofer has an adjustable high cut filter and a choice of speaker-level or line-level inputs for easy incorporation into existing systems, or as part of a subwoofer/satellite speaker combination.

Controls for adjusting the volume, crossover frequency and phase, allow the subwoofer to be perfectly matched to any listening environment and audio components.

The Drivers

To have lots of bass requires moving lots of air. Your Sunfire Subwoofer incor- porates two drivers that can move back and forth approximately five times more than a normal subwoofer. This gives it a lot of air moving capacity which allows for majestic bass performance.

Two drivers share the acoustic output. Sometimes one driver appears to be moving more than the other. They both move the same amount only when op- erating at the limit of their excursion and power output, or when bass requirements and music requirements demand maxi- mum output from the system. Otherwise, the power is shared between the two drivers in a way that depends on the mo- mentary amplitude and the momentary musical spectrum. It is normal for one or the other to move more or less than its mate during operation.

On the driver to the right of the control panel there is a slight bump, under which is a pressure cap. The bump is normal.

The driver on the left is absolutely flat and very rugged. The one with the slight bump is not quite as rugged, and modest

care should be taken with it, though it is still very strong. During installation, you should position the driver with the bump towards a protected side.

The Amplifier

The large movement range of the driv- ers creates greater air pressure inside the box than a conventional woofer. Therefore, the drive amplifier must be much more powerful than an ordinary woofer amplifier. In fact, it has to be so powerful that it is almost hard to believe.

The power amplifier within your Sunfire Subwoofer is capable of delivering over 1,500 watts into a 4.6 ohm resistor (the voice coil resistance of the subwoofer’s driver). When the same full output is ap- plied to the driver, however, the enor- mous back-electromotive force generated as a consequence of its large motion and giant magnet causes the current flow to be much less than if it were a 4.6 ohm resistor. It is this singular property of the driver that allows the woofer to be ap- proximately ten times more efficient than a woofer this size would normally be. Hence, the actual average input power is substantially less than 1,500 watts, and is approximately 120 watts for most musical material on the loudest passages.

A compressor circuit kicks in automati- cally if the input signal level reaches a level that would overload the driver. This maintains a ceiling on the output without clipping. If the input signal is driven even further, a ‘soft clipping’ circuit is enabled. This allows the woofer to put more sound into the room to satiate the power hungry user, but without distortion or damage to the woofer. Thus, for explosive scenes in movies, this produces extremely high sound pressure levels (SPL) in your room without the woofer banging against its mechanical stops.

For more details of the subwoofer de- sign, please call us or view our website: www.sunfire.com

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Contents Page Ventilation The Component should Safety InstructionsContents Introduction FeaturesUnpacking CareAmplifier OverviewDrivers Bass Level Phase Control Control Panel FeaturesCrossover Frequency OutputsLine-Level Inputs Power/Auto on IndicatorSpeaker-Level Inputs Line FuseAC Power Considerations InstallationHeat rise Magnetic FieldsSpeaker-Level connections ConnectionsLocation Using Two SubwoofersConnections to a preamplifier’s subwoofer output System ConfigurationsConnections to a preamplifier using Y cables Using the line-level high-pass outputs If you are using Using the speaker-level inputsControl settings Adjusting the controlsSpecifications Not enough bass in a 5.1 system TroubleshootingNot enough bass Subwoofer won’t turn off HumSubwoofer won’t turn on Audible snap from outletService Assistance Limited WarrantyManual part number 913-124-00 Rev D

Home Theater System specifications

The Sunfire Home Theater System is designed for audiophiles and movie enthusiasts seeking an immersive audio experience in the comfort of their own homes. Known for its engineering excellence, Sunfire products deliver powerful sound while maintaining compact designs, making them suitable for various living spaces.

One of the standout features of the Sunfire Home Theater System is its proprietary subwoofer technology. Sunfire’s subwoofers utilize a unique design that combines high output with a small footprint. The result is deep, rumbling bass that fills the room without overwhelming the space. The patented High Fidelity Bass (HFB) technology ensures that even the lowest frequencies are reproduced with precision, making action movies more thrilling and music more enjoyable.

In addition to powerful subwoofers, the system includes high-performance satellite speakers that provide crisp and clear mid and high frequencies. These speakers often employ advanced materials and construction techniques, enhancing their durability while delivering an unparalleled auditory experience. With a focus on delivering a balanced soundstage, Sunfire speakers ensure that every sound is faithfully reproduced, whether it’s the subtle rustle of leaves or the booming explosions of blockbuster films.

The Sunfire Home Theater System embraces cutting-edge technologies such as Dolby Atmos and DTS:X, enabling a surround sound experience that places you at the center of the action. With support for immersive audio formats, the system creates a three-dimensional sound environment, allowing sounds to move around you in a lifelike manner. This enhances the realism of films and fully immerses you in the audio landscapes of your favorite shows.

Setup and customization are also user-friendly features of the Sunfire Home Theater System. Many models come equipped with advanced calibration technologies that analyze the acoustics of your room and automatically adjust settings for optimal performance. This ensures that every listener enjoys the best possible sound quality, regardless of their seating position.

Additionally, the system's sleek, modern design makes it an attractive addition to any home décor. Available in multiple finishes and styles, Sunfire products blend seamlessly into a living room or dedicated home theater space without compromising on aesthetics.

In conclusion, the Sunfire Home Theater System combines innovative technologies, powerful performance, and elegant design to deliver an exceptional home audio experience. Whether you're watching movies or listening to music, the Sunfire system ensures that you experience every moment in rich, immersive sound.
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