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Manafacture: Alpine File size: 437.28 kb File name: Language of manual:

Included with the C-series subwoofers are a set of four spiked feet. Using these spiked feet will stabilize the subwoofer placement and may tighten up the subwoofer's sound. There are threaded inserts in the bottom of the cabinet for these spiked feet. The sound quality of your a/d/s/ subwoofer and how its sound blends with the main speakers is affected by its location in the room and the settings of the rear panel controls. The bass output level of the subwoofer is greatly affected by its placement in the room. As a general rule the level will increase as the subwoofer is moved closer to the boundaries (the walls and corners) of the room. Corner placement will produce the strongest bass and in some instances the smoothest response. Experiment with a variety of placements that are practical and domestically acceptable. Try adjusting the settings of the subwoofer phase and subwoofer volume controls in each room location you try. The goal is a combination of placement and control settings that produces smooth solid bass that blends seamlessly with the main speakers. One trick for achieving the desired bass performance in a given room is to locate the subwoofer at your normal seating/listening location. Then walk around the room while the system is playing. Look for a spot in the room that is suitable for the subwoofer and where the bass sounds the best to you. If you then place the subwoofer at that location, the bass response at your normal seating position will be the same. Another consideration when selecting a location for the subwoofer is required audio signal and power wiring connections. Because long cable runs can degrade a sound signal, the subwoofer should not be too far away from the other components of the system. Plan for routing the connecting cables where they won't be stepped on or crushed. The powerful bass sound energy produce by the a/d/s/ subwoofers can cause objects to vibrate or rattle. Setting a compact disc player on the subwoofer may result in tracking problems or data errors. Purely electronic equipment, such as amplifiers or receivers are not likely to be affected by the subwoofer. Never set up a turntable near the subwoofer. This can produce severe acoustic feedback. system connection There are two ways the subwoofer can be connected to the other components in the system. If the electronics in the system consists of a separate preamp and power amp or integrated electronics that have preamp/power amp jumpers, use the low level (preamp level) inputs and outputs of the subwoofer (See below). Low-level connection: In this configuration the subwoofer is connected to the system between the preamp and power amp sections of the electronics. Connect the preamp outputs to the low level inputs on the subwoofer with shielded RCA cables. This supplies the subwoofer with a full range signal. Use the same type of cable to connect the high pass outputs of the subwoofer to the power amp inputs of the system electronics. This returns the portion of the signal above the very low frequency range to the main amplifier and satellite speakers. High-level connection: In this configuration the subwoofer is connected to the system between the amplifier outputs and the satellite speakers. The signal that drives the subwoofer amplifier is derived from this signal. Use the same speaker wire that goes to the satellite speakers for this connection. If your amplifier has remote or B speaker outputs you can use those ins...

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