QSC CMX300Va 200 watt Contractor Power Amplifier

Features:

• "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 1/4" TRS
• "Flex-Use" output connectivity choices include NL4 Speakonô 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

Specifications:

• Stereo Mode (both channels driven)
• 8ohms FTC 0.1% THD: 185 W
• 8ohms EIA 0.1% THD: 200 W
• 4ohms FTC 0.1% THD: 280 W
• 4ohms EIA 0.5% THD: 300 W
• 2ohms EIA 1% THD: 300 W
• 70V Direct EIA 1% THD: ñ
• 100V Direct EIA 1% THD: ñ
• FTC: 20 Hzñ20 kHz after preconditioning
• EIA: 1 kHz
• Bridge Mono Mode:
• 8ohms FTC, 0.1% THD:530 W
• 8ohms EIA, 0.1% THD: 600 W
• 4ohms EIA, 1% THD: 830 W
• 70V Direct Drive EIA, 1% THD: 600 W
• 100V Direct Drive EIA, 1% THD: -
• FTC: 20 Hzñ20 kHz after preconditioning; both channels driven simultaneously
• EIA: 1 kHz
• Signal to Noise (20 Hzñ20 kHz, 8ohms): > 100 dB
• Input Sensitivity into 8ohms: 1.15 V (+3.4 dBu)
• Max Voltage Gain: 31.6? (30 dB)
• Output Circuitry: Class AB
• Current Draw (pink noise program)
• Typical, 1/8 power 4ohms, 120 V: 4.4 A
• Typical, 1/8 power 4ohms, 230 V: 2.2 A
• Severe, 1/3 power 4ohms, 120 V: 6.6 A
• Severe, 1/3 power 4ohms, 230 V: 3.3 A
• Distortion (SMPTE-IM): < 0.02%
• Distortion (typical)
• 20 Hzñ20 kHz: 10 dB below rated power: < 0.03% THD / 4ohms and 8ohms
• 1.0 kHz and below: full rated power: < 0.03% THD / 4ohms and 8ohms
• Frequency Response: 20 Hzñ20 kHz: ±1 dB; -3 dB points: 5 Hz and 50 kHz
• Damping Factor (1 kHz and below): >300 at 8ohms
• Input Impedance: 10 kohms unbalanced, 20 kohms 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) ñ 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 ñ 60 Hz
• Dimensions (HWD)
• 2 RU models: 3.5" (8.9 cm) 2 rack spaces x 19" (48.3 cm) rack mounting x 15.9" (40 cm) deep to rear support ears
• 3 RU model (CMX 2000Va): 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
• Weight - Net: 35 lb (15.9 kg)
• Weight - Shipping: 41 lb (18.6 kg)