BEHRINGER BX2000H 2,000-Watt Class-D Bass Amplifier with Mosfet Preamp Compressor and Dynamizer Technology Black Ultra-high power, ultra-lightweight 2,000-Watt bass amplifier driven by classic MOSFET technology Revolutionary Class-D amplifier technology for incredible power and sonic performance High-voltage MOSFET preamplifier gives you the sound and feel of an authentic tube amp Classic compressor increases sustain and smoothens out volume peaks when playing dynamic slaps DYNAMIZER Power Management technology for ultimate punch and to capture every nuance of your playing