SVS PB2-Plus (1 Viewer)

[Haris Ellahi]

On the back of the subwoofer, why are there "Left" and "Right" connections? Secondly, why are there "Input" and "Output" connections? Shouldn't there only be "Input" connection?

 

[Brian Fellmeth]

When using a home theater receiver, those connections are not needed. Simply hook a cable from the LFE of the receiver to either the R or L in. They are there incase you had a raw stereo signal and needed to get both channels into the sub. The "outs" are in case you wanted the sub's amp to filter the signal that then passes to main speakers. Just forget about them- you only need to use one of the in jacks, doesn't matter if its R or L.

 

[ross ish]

On rare subs, there are actually a stereo input. For most subs, both Left and Right are summed mono into one amplifier. The reason for two inputs are for those using their subs for two channel listening. Typically, you have a stereo preamp (that has no bass mgt controls) that is feeding a stereo amp. If your sub has high pass filter, you simply feed the outputs of the preamp into the sub. The sub will extract the bass from the input and send the high pass signal onwards through the outputs to the stereo amp. The stereo amp will amplify the high pass signal and send them on to the speakers. This would relieve your stereo amp the duties of having to amplify demanding bass signals; leaving more headroom for the main speakers.

Hence for the output. On some sub amps, the output is used to daisy wheel other subs. Some subs have the capability of doing both chores.

If you are using the inputs for LFE only, use the left channel input or purchase a 'Y' connector. Some say that by using the 'Y' connector, more signal is fed into the sub amp for greater potential output.
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