Crown XTI 2000 Digital Power Amplifier, 2000 Watts Peakx PlusTM Limiters provide the ultimate in system performance and protection by allowing full control over threshold, attack, and release Enhanced Subharmonic Synth section provides user control over frequency, gain and filter type for system-specific tuning 3 user-defined fan mode controls -normal, early and full- speed -for matching fan performance to a specific application New system monitoring provides software visibility of AC line voltage and power supply temperature 4 Stereo (per channel) 800W