CIYISON Passive 4-in-2-out Power Amplifier Speaker Selector Switch — 300W per Channel

Accepts 4 power amplifier inputs with push-button selection and routes them to 2 sets of stereo speakers. Each speaker output is controlled by its own push-button, so the two stereo pairs can be turned on or off independently or both enabled at once. You can manually select which amplifier feeds the speakers using the front-panel pushbuttons; multiple speaker sets may play simultaneously, or you can disable one or more groups individually. Maximum power handling is 300W for each channel. The signal input includes a vacuum tube power amplifier no-load protection function. Input and output switching is manual and plug-and-play; switching is stable and will not produce noise, dry-close, or other unwanted transients between channels.