QSC CMX300Va

Stereo Mode (both channels driven)8Ω/ FTC 20 Hz – 20 kHz / 0.1% THD8Ω/ EIA 1 kHz / 0.1% THD4Ω/ FTC 20 Hz – 20 kHz / 0.1% THD4Ω/ EIA 1 kHz / 0.5% THD2Ω/ EIA 1 kHz / 1% THD70V Direct Drive / EIA 1 kHz / 1% THD100V Direct Drive / EIA 1 kHz / 1% THD

185 W200 W280 W300 W430 W – –

260 W300 W400 W500 W700 W – –

450 W500 W650 W800 W1200 W400 W –

1050 W1100 W1600 W2000 W (1% THD)2500 W2500 W1000 W

Bridge Mono Mode8Ω/ FTC 20 Hz – 20 kHz / 0.1% THD8Ω/ EIA 1 kHz / 0.1% THD4Ω/ EIA 1 kHz / 1% THD70V Direct Drive / EIA 1 kHz / 1% THD100V Direct Drive / EIA 1 kHz / 1% THD

530 W600 W830 W600 W –

800 W900 W1400 W1200 W600 W

1300 W1500 W2400 W2000 W2300 W

3200 W3600 W5000W5000 W3600 W

Signal to Noise (20 Hz – 20 kHz, 8Ω)

> -100 dB

> - 100 dB

> - 100 dB

> - 100 dB

Input Sensitivity at 8Ω

1.15 V (+3.4 dBu)

1.14 V (+3.4 dBu)

1.23 V (+4.0 dBu)

1.42 V (+5.3 dBu)

Voltage Gain at 8Ω

31.6 x (30 dB)

40 x (32 dB)

46 x (33 dB)

64 x (36 dB)

Output Circuitry

Class AB

Class AB

2-tier Class H

3-tier Class H

PowerRequirementsTypical, 1/8 power pink noise at 4Ω, 120VACTypical, 1/8 power pink noise at 4Ω, 230 VACSevere, 1/3 power pink noise at 4Ω, 120VACSevere, 1/3 power pink noise at 4ΩΩ, 230 VAC

4.4 A2.2 A6.6 A3.3 A

5.4 A2.7 A9.6 A4.8 A

6.3 A3.2 A15.6 A7.8 A

13.9 A7 A26.9 A13.5 A

Distortion (SMPTE-M)

< 0.02%

< 0.01%

< 0.01%

< 0.01%

Distortion (typical)20 Hz – 20 kHz: 10 dB below rated power1.0 kHz and below: full-rated power

< 0.03% THD / 4Ωand 8Ω< 0.03% THD / 4Ωand 8Ω

Frequency Response

20 Hz – 20 kHz: ±1 dB -3 dB points: 5 Hz – 50 kHz

Damping Factor (1 kHz and below)

> 300 at 8Ω

Input Impedance

10k ohms unbalanced, 20k ohms balanced

Input Clipping

10 Vrms (+22 dBu)

Cooling

Continuously variable-speed fan, rear-to-front air flow

Connectors (each channel)

Input: Active balanced; barrier strip, XLR and ¼" (6.3 mm) – TRS tip and XLR pin 2positiveOutput: Detachable terminal block and Neutrik™ Speakon™

Controls

Front: AC switch, Ch. 1 & 2 gain knobsRear: 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 and 230 VAC, 50 – 60 Hz

Dimensions (HWD)2 RU models3 RU model (CMX 2000Va)

3.5" (8.9 cm) 2 rack spaces x 19" (48.3 cm) rack mounting x 15.9" (40 cm) deep to rear support ears5.25" (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)

40 lb (18.2 kg)

44.5 lb (20.2 kg)

75 lb (33.1 kg)

Weight - Shipping

41 lb (18.6 kg)

46 lb (20.9 kg)

50.5 lb (23 kg)

87 lb (37.2 kg)