Performance Standard Serie 4/3/2ch Power AmplifierPerformance Standard series amplifiers are designed to be our best sounding amplifiers. They provide outstanding dynamics, holding the musical reproduction to the highest standard whether delivering impactful bass or the most detailed notes.- Performance Standard Serie- 4 channel or 3 channel (2 channel + Sub) setup- 1000W Maximum output power- Built-in Variable Low-pass filter- Built-in High-pass filter (80Hz: ON/OFF)- Signal Sensing Turn-on- Speaker level input- Power MOS-FET switching power supply- Die cast aluminium heat sink- Cooling fan