this is a pure power amplifier board.

the sensitivity of the input signal is 1.5v rms, if your input signal voltage can't reach this value, recommend adding preamp. 

mono channel, for 2.0 channels needs two boards.

the rated output power: 1000w ( /- 75v power supply, 2 ohm load) efficiency:≥ 90%

the total harmonic distortion: 1000w ( /- 75 power 2-ohm speaker, distortion less than 1%)

frequency range: 20hz-20khz

speaker: 2-4-8ohm

voltage magnification: 32 times

voltage magnification gain: 30db

input sensitivity 1.5v (rms)

recommended power supply /-75v

recommended 4-8ohm / 10-18inch speaker

this is a pure power amplifier board.

the sensitivity of the input signal is 1.5v rms, if your input signal voltage can't reach this value, recommend adding preamp. 

mono channel, for 2.0 channels needs two boards.

the rated output power: 1000w ( /- 75v power supply, 2 ohm load) efficiency:≥ 90%

the total harmonic distortion: 1000w ( /- 75 power 2-ohm speaker, distortion less than 1%)

frequency range: 20hz-20khz

speaker: 2-4-8ohm

voltage magnification: 32 times

voltage magnification gain: 30db

input sensitivity 1.5v (rms)

recommended power supply /-75v

recommended 4-8ohm / 10-18inch speaker