Product description:
Do you have trouble connecting two power amplifiers to four sets of speakers? Do you need a power amplifier to make all four speakers sound at the same time?
A powerful power amplifier with a sound switcher can solve the above problems.
1. Touch-tone switching input for 2 power amplifiers, touch-tone selective switching output for 4 stereo speakers (4 sets of speakers can be turned on or off independently)
2. Four sets of stereo speakers can sound at the same time, or one or more sets of speakers can be turned off separately, manually selecting a push-button switch
3. Maximum support power per channel is 300W
4. Signal input provides no-load protection function of vacuum tube power amplifier signal
5. Provide output earphone monitoring function, 6.5mm interface, earphone output with volume adjustment function
6. The input and output are manually selected for switching, and directly plugged in for direct use. The switching signal is stable, and there will be no additional dryness or noise between channels
7. Compact design, strong metal case, easy installation, no external power supply

Product parameters:
1. Compatible with all types of power amplifiers and speakers.
2. The input/output receives heavy speaker wire or speaker pin wire through the terminal port.
3. Connect the power amplifier to the position of amplifier A or Amplifier B.
4. Connect the loudspeakers to the 1-2-3-4 loudspeaker respectively.
5. Turn on your power amplifier stereo, the product does not require external power.
6. Earphone listening interface: 6.5mm
7. Input: 2 sets of input (banana plug)
8. Output: 4 sets of output (banana plug)
9. Power: Support 300W
10. Metallic material, stainless steel case, compact size suitable for any system.
11. Channel power: Each channel supports up to 300W.
12. Frequency response: 10Hz - 50KHz.
13. Net weight: 0.86 kg
14. Product weight after packaging: 0.98 kg
15. Product size: Length 240mm x width 113mm x height 55mm
16. Package size: Length 260mm x width 185mm x height 65mm high
17. Kit list: 2 in 4 out power amplifier x 1