As one of the well-known lp series 4ch switch power amp manufacturers and suppliers in China, it is waiting for you to buy our low price lp series 4ch switch power amp and check the quotation with our factory.Model: LP Series Switch Power Amplifier  LP series is the company developed a new multi-channel professional power amplifier, switching power supply design technology class plus TD, TD class characteristics of the amplifier is the power amplifier supply voltage follows the size of the input signal varies, playback when a voltage amplifier always follow the music signal. So close to the D class amplifier having the efficiency of another Class AB sound quality. The use of advanced ventilation system. Professional security protection circuit include: DC protection, input overload protection, output short circuit protection, output overload protection, over temperature protection, soft-start switch protection, clipping limits the height to protect the safety and reliability of the power amplifier. This product can be widely used in entertainment, theater and cinema venues. ModelLP4600LP41300LP22400Stereo power 8Ω640w x 41300w x 42400w x 2Stereo power 4Ω1275w x 42485w x 44800w x 2Bridge power 8Ω2650w x 24400w x 28800wFrequency response20Hz-25kHz, ±0.5dB20Hz-25kHz, ±0.5dB20Hz-25kHz, ±0.5dBTHD<0.1% ((rated power,4Ω,1KHz))Damping factor800Separation:>60 dBSNR:>80 dB />110 dB/>110dBInput sensitivity0.775 v / 1.0 v / 1.4 vInput impedance20kΩ / 10kΩProtectionSoft Boot. VHF. DC. Short.Overload;Distortion limiter. Overheat.Boot level Fade inVoltageAC220V/50HzDimension483x380x88mm (2 U)Weight12kg13kg13kg