Sinbosen DSP10000Q, DSP12000Q, DSP18000Q, DSP20000Q, DSP22000Q are professional amplifier with 4 in 4 out digital processing module board. The DSP chips of them are from TI company, 32-bit floating-point, 96KHz sampling frequency, 24 bit A/D & D/A converter. Embedded ARM processor operating system with 4" touch screen makes operation easier. Free drive USB and RS485 can connect to the PC，meanwhile RS485 for distance control as long as 1500 meters support machines' cascade. There are 8 bands PEQ, X Over, Delay, Limiter, Gain, Polarity for every output channel, limiting and adjusting the output level to protect the output equipment.