QSC CMX300Va - 2-Channel Power Amplifier

QSC CMX300Va - 2-Channel Power Amplifier CMXa Series amplifiers represent an economical and rugged power amplifier solution for installed sound applications. There are four CMXa models to choose from (CMX 300Va, CMX 500Va, CMX 800Va, and CMX 2000Va). The CMX amplifiers provide flexible input and output connectors making them ideal for use in projects such as performance halls, houses of worship, sport clubs, gymnasiums, dance venues, pubs, and FGM/BGM systems. The CMXa Series provides unmatched performance and user options at an affordable price point.

• Flexible output loading options enable low impedance loads comfortably down to 2Ω, and in some configurations will effortlessly drive 70V /100V lines
• Recessed front panel gain controls with 1 dB detents for fast and accurate level settings
• Security plate cover for gain controls to provide tamper-proof protection
• Recessed rear DIP switches for easy selection between stereo, parallel, or bridged mode operation, and the additional choice of enabling/disabling low frequency filter protection
• Balanced XLR, TRS or Barrier Strip

• “Flex-Use” loading options allows CMX Series amps to drive low-impedance loads down to 2 ohms, and certain models can direct-drive (no output transformer) 70V and 100V distributed loudspeaker systems
• “Flex-Use” input connectivity choices including actively balanced barrier strip, XLR, or ¼" TRS
• “Flex-Use” output connectivity choices include NL4 Speakon™ and detachable terminal block
• Rack mountable with chassis less than 16" (40.6 mm) deep
• 1-dB recessed, detented gain controls for fast, accurate, and repeatable settings
• Tamper-proof security cover for gain controls
• Recessed rear DIP switches for easy selection of stereo, parallel, or bridged mode operation, and enabling/disabling low-frequency filter protection
• Low-noise variable-speed fans with rear-to-front airflow help keep amplifiers and racks cool

• Stereo Mode (both channels driven):
• - 8O FTC 0.1% THD: 185W
• - 8O EIA 0.1% THD: 200W
• - 4O FTC 0.1% THD: 280W
• - 4O EIA 0.5% THD: 300W
• - 2O EIA 1% THD: 430W
• Signal to Noise (20 Hz-20 kHz, 8O): > 100 dB
• Input Sensitivity into 8O: 1.15 V (+3.4 dBu)
• Max Voltage Gain: 31.6x (30 dB)
• Current Draw (pink noise program):
• - Typical, 1/8 power 4O, 120 V: 4.4A
• - Typical, 1/8 power 4O, 230 V: 2.2A
• - Severe, 1/3 power 4O, 120 V: 6.6A
• - Severe, 1/3 power 4O, 230 V: 3.3A
• Distortion (SMPTE-IM): < 0.02%
• Distortion (typical):
• - 20 Hz-20 kHz: 10 dB below rated power: < 0.03% THD / 4O and 8O
• - 1.0 kHz and below: full rated power: < 0.03% THD / 4O and 8O
• Frequency Response: 20 Hz-20 kHz: ±1 dB; -3 dB points: 5 Hz and 50 kHz
• Damping Factor (1 kHz and below): > 300 at 8O
• Input Impedance: 10 kO unbalanced, 20 kO balanced
• Input Clipping: 10 V rms (+22 dBu)
• Cooling: Continuously variable-speed fan, rear-to-front air flow
• Connectors (each channel):
• - Input: Active balanced; barrier strip, XLR and 1/4"" (6.3 mm) - TRS tip and XLR pin 2 positive
• - Output: Detachable terminal block and Neutrik Speakon
• Controls:
• - Front: AC switch, Channels 1 & 2 gain knobs
• - Rear: 10-position DIP switch
• Indicators: Power-on: Green LED / Signal: Green LED (1 per channel) / Clip: Red LED (1 per channel)
• Amplifier Protection: Stable into reactive or mismatched loads
• Load Protection: On/off muting, AC coupling (CMX 300Va and CMX 500Va), triac crowbar (CMX 800Va and CMX 2000Va on each channel)
• Power Requirements: 120 or 230 VAC, 50 - 60 Hz
• Net Weight: 35 lb
• Shipping Weight:41lb