[Kalman Rubinson]

On Fri, 17 Nov 2006 21:12:57 GMT, "W.G.D."
wrote:

Do most powered subwoofers have two line-level inputs . . . . so that it
can derive the monophonic signal from both the L & R channels?

Yes. Some even have two line-level outputs which can feed the signals
back to your main amps and speakers with the sub signal removed. That
will increase their power handling and lower distortion.

Kal