When power VU3 off, Amplifier B channel and Speaker 2 channel will be auto selected and can input and output audio signal normally. And when power VU3 on again, it will auto switch to the channels that are set before.
The VU3 2-In-2-Out Aluminum Audio Power Amp 100Wx2 Speaker Switcher w/ Dual VU Meter is ideal for professional AV equipment installations requiring high-performance, compact, and customizable audio solutions.
