Use With A Full-Range Speaker Driven In Bi-Amp Mode; Use For Driving A Subwoofer With A Stereo Signal - Yamaha PX10 Reference Manual

 Use with a full-range speaker driven in bi-amp mode
The input signal is divided into separate frequency ranges for driving a two-way full-range speaker in bi-amp mode.
 Use for driving a subwoofer with a stereo signal
Stereo input signals drive a subwoofer in Power Boost mode (PX5 and PX3 only)
Introduction — Usage examples
Channel A + Channel B
(PX5)
PX10/PX8/PX5/PX3 Reference Manual
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