product presentationFeatures: The output of 4 groups of speakers can be divided into 4 zone switch control, each group of speakers can independently select A and B power amplifier output, and each group of speaker output can independently turn on and off the function.Do you have 2 power amplifiers and 4 sets of speakers that need to be connected to each other?Do you need 2 amplifiers and 4 sets of speakers to get stuck?A powerful amplifier and audio switcher can solve these problems,1:2 power amplifiers push-button select switch input,4 sets of stereo speakers push-button select switch output (4 sets of speakers can be opened or closed independently)2: sets of stereo speakers can sound at the same time, you can also turn off one group of speakers or more groups of speakers individually, manually select the pushbutton switch3: The maximum power of each channel is 300W4: Signal input provides vacuum tube power amplifier signal no-load protection function5: manual selection of input and output switching, straight plug straight use, switching signal stability, between channels will not produce another dry close or noise6: Compact design of solid metal shell, easy installation, the product does not need external power7: simple installation: input and output plug and play easy installation, you can enjoy different audio experience Product ParameterCompatible with all types of power amplifiers and speakersInput/output accepts heavy-duty speaker wire or speaker pin wire through the terminal portConnect the power amplifier to amplifier A and BConnect the loudspeaker to position 1-2-3-4 respectivelyTurn on your power amplifier stereo device and the product requires no external power supplyInput:2 sets of inputs (banana plug)Output:4 sets of output (banana plug)Power: up to 300WMetal material, fine steel housing, compact size suitable for any systemChannel Power: Each channel supports up to 300W of powerFrequency response: 10Hz-50KHzNet weight :0.92 kgPacked weight :1.08 kgProduct size: length 240mm X width 105mm X height 55mmPacking size: length260mm X width 185mm X height 65mm Kit list1 X 2 input 4 output power amplifier and sound switcher loudspeaker switch distributor