QSC CMX 2000Va is a Commercial Power Amplifier. It is an economical and rug power amplifier design to meet the needs of system integrators. QSC CMX 2000Va is based upon the proven, rock-solid, reliable performance found in the award winning RMX Series. Frequency Response: 20 Hz – 20 kHz: ±1 dB -3 dB points: 5 Hz – 50 kHz Stereo Mode: 1100W for 8Ω , 2000W for 4Ω, 2500W for 2Ω, 2500W for 70V DirectDrive, 1000W for 100V DirectDrive Bridge Mono Mode: 3600W for 8Ω, 5000W for 4Ω, 5000W maximum in 70V DirectDrive, 3600W maximum in 100V DirectDrive Dimension(H x W x D): 5.25" (13.3 cm) 3 rack spaces x 19" (48.3 cm) rack mounting x 15.9" (40 cm) deep to rear support ears

QSC CX108V is a 8 Channel Professional Power Amplifier design for permanent install sound systems. The rack space is at premium, and it provide unprecedented levels of channel density for multichannel amplifiers. Frequency Response: 20 Hz – 20 kHz, + 0.4 dB | 8 Hz – 70 kHz, +0/-3 dB 100 watts per channel at 70 volts in Stereo Mode 200 watts per channel at 140 volts in Bridge Mono Mode Dimensions (H x W x D): 3.5" (8.9 cm) 2 RU x 19" (48.3 cm) rack mounting x 14" (35.6 cm) from front mounting rails

QSC CX168 is a 8 Channel Professional Power Amplifier. And the  Power Light technology takes your audio to an entirely new level. Delivered tighter bass and clean, transparent highs. Power Light also cuts waste heat, boosts reliability, and eliminate unwanted noise and hum. Frequency Response 20 Hz – 20 kHz, + 0.2 dB | 8 Hz – 50 kHz, +0/-3 dB Stereo Mode: 90 W for 8Ω, 130 W for 4Ω Bridge-Mono Mode: 180 W for 16Ω,  260 W for 8Ω Dimensions (HWD) 3.5" (8.9 cm) 2 RU x 19" (48.3 cm) rack mounting x 14" (35.6 cm) from front mounting rails