• Do you have and 2 sets of speakers that need to be connected to each other? Do you need four and two sets of speakers to get stuck powerful and audio switcher can solve these problems.
• push-button select switch input,2 sets of stereo speakers push-button select switch output (2 sets of speakers can be opened or closed independently)
• Sets of stereo speakers can sound at the same time, you can also turn off group of speakers or more groups of speakers individually, manually select the pushbutton switch
• The maximum power of each channel is 300W
• Signal input provides vacuum tube power amplify

1 piece 4 input 2 output power amplifier and sound switcher loudspeaker switch distributor