เครื่องขยายเสียง ยี่ห้อ QSC รุ่น CMX2000Va
Features:
- “Flex-Use” loading options allow you to drive low-impedance loads down to 2 ohms and certain models to drive 70 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 Speakon™ and detachable terminal block
- Rack mountable with chassis less than 16″ or 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 the additional choice of enabling/disabling low frequency filter protection
- Low-noise variable-speed fans with rear-to-front airflow keep amplifiersand racks cool
Specs
| CM X300Va | CMX 500Va | CMX 800Va | CMX 2000Va | ||||
| 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) | |||
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