Definitive Technology ProSub 800 Owner's Manual

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Contents

Definitive Technology ProSub 800 Owner's Manual Manual pdf 4 page image

Subwoofer PlacementYour Definitive Technology subwoofer has been designed to operate atfrequencies generally below 150 Hz. Because low-frequency informationin this range essentially is non-directional, your subwoofer can be locatedanywhere in your listening room that is most convenient. Also, the con-tinuously variable low pass filter operates at a very fast roll-off, ensuringgreat performance wherever you place your subwoofer. There are, how-ever, some general rules that you should bear in mind when locatingyour subwoofer:1. For maximum output the subwoofer should be placed in a corner oragainst the wall.2. Corner placement will increase the subwoofer's efficiency, which inturn will increase your system's maximum output and improve thedynamic capability of the subwoofer.3. While one Definitive Technology subwoofer will always sound great,the use of two subwoofers will definitely enhance your system'sperformance by providing a smoother and more consistent responsepattern. Here, it is recommended that you locate the subwoofers onthe same side of the room as the main speaker of the same channel(if you are feeding them discrete left and right channel signals).4. When using the Pro Sub with Definitive ProMonitors, consult theProMonitor instruction manual for other placement tips.Wiring DiagramsLow Level LFE ConnectionsMost new model receiv~rs, preamps and decoders feature a mono(line level) output intended to be used with subwoofers. This is thesimplest connection method to use. You can feed the mono or LFEsubwoofer output of your receiver or decoder to the LFE low levelinput on the subwoofer and achieve full performance. Usually, if yourreceiver or decoder already has a built-in low pass crossover, you shouldturn the low pass control on your ProSub to 150. Also, these subwooferoutputs tend to have less gain than main line level outputs, thus the gaincontrol on your subwoofer may need to be adjusted accordingly forproper balance. Use the LFE input on the subwoofer to hook the sub-woofer up to the LFE (low frequency effects) output on Dolby DigitalAC-3 * decoders, receivers, etc.