2-Channel Power Amplifier - 200 watts/ch at 8Ω, 70V/mono at 600 watts
หมายเลขสินค้า : CMX300Va
ราคา 17,600.00 บาท
ราคาปกติ : 22,000.00 บาท
ประหยัดไป 4,400.00 บาท
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2-Channel Power Amplifier - 200 watts/ch at 8Ω, 70V/mono at 600 watts
The CMX300Va 430W Professional Power Amplifier from QSC is a 2RU rugged unit designed to meet the needs of system integrators. This amplifier is used in facilities such as performance halls, houses of worship, sports clubs, gymnasiums, dance venues, pubs, and FGM/BGM systems.
The amplifier uses a powerful, high-current toroidal transformer with filtering to ensure generous energy reserves. This allows the amplifier to effortlessly handle high-level transients, even when driving rigorous 2Ω speaker loads.
The amplifier output sections feature rugged class AB architecture. Automatic current limiting protects the amplifier from damage until the short is corrected. It also features DC protection systems to prevent loudspeaker damage in the unlikely event of an output transistor failure. DC voltage from the power supply is never passed directly to your speakers, even in case of an output circuit breakdown.
This CMXa amplifier delivers true and accurate studio-quality sound. A full complementary output circuit using high-grade linear output devices generates accurate, flat-frequency response with low distortion. SMT (Surface Mount Technology) triples small-signal component density, enabling high power output in a 2 RU chassis, less than 16" deep. Unlike other designs, CMXa output devices are directly mounted to the heat sink for optimum thermal coupling and cooling.
The unit has the ability to directly drive 70 and/or 100V distributed loudspeakers. The CMX 300Va must be configured for bridged-mono operation in order to directly drive high-impedance systems. For installations requiring a transformer isolated output, the CMX has optional accessories to cover your needs.
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 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
| CMX 300Va | CMX 500Va | CMX 800Va | CMX 2000Va | ||
|---|---|---|---|---|---|
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Stereo Mode (both channels driven) 8Ω FTC 0.1% THD 8Ω EIA 0.1% THD 4Ω FTC 0.1% THD 4Ω EIA 0.5% THD 2Ω EIA 1% THD 70V Direct EIA 1% THD 100V Direct EIA 1% THD FTC: 20 Hz–20 kHz after preconditioning EIA: 1 kHz |
185 W 200 W 280 W 300 W 430 W – – |
260 W 300 W 400 W 500 W 700 W – – |
450 W 500 W 650 W 800 W 1200 W 400 W – |
1050 W 1100 W 1600 W 2000 W (1% THD) 2500 W 2500 W 1000 W |
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Bridge Mono Mode 8Ω FTC, 0.1% THD 8Ω EIA, 0.1% THD 4Ω EIA, 1% THD 70V Direct Drive EIA, 1% THD 100V Direct Drive EIA, 1% THD FTC: 20 Hz–20 kHz after preconditioning; both channels driven simultaneously EIA: 1 kHz |
530 W 600 W 830 W 600 W – |
800 W 900 W 1400 W 1200 W 600 W |
1300 W 1500 W 2400 W 2000 W 2300 W |
3200 W 3600 W 5000W 5000 W 3600 W |
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| Signal to Noise (20 Hz–20 kHz, 8Ω) | > 100 dB | > 100 dB | > 100 dB | > 100 dB | |
| Input Sensitivity into 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) | |
| Max Voltage Gain | 31.6× (30 dB) | 40× (32 dB) | 46× (33 dB) | 64× (36 dB) | |
| Output Circuitry | Class AB | Class AB | 2-tier Class H | 3-tier Class H | |
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Current Draw (pink noise program) Typical, 1/8 power 4Ω, 120 V Typical, 1/8 power 4Ω, 230 V Severe, 1/3 power 4Ω, 120 V Severe, 1/3 power 4Ω, 230 V |
4.4 A 2.2 A 6.6 A 3.3 A |
5.4 A 2.7 A 9.6 A 4.8 A |
6.3 A 3.2 A 15.6 A 7.8 A |
13.9 A 7 A 26.9 A 13.5 A |
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| Distortion (SMPTE-IM) | < 0.02% | < 0.01% | < 0.01% | < 0.01% | |
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Distortion (typical) 20 Hz–20 kHz: 10 dB below rated power 1.0 kHz and below: full rated power |
< 0.03% THD / 4Ω and 8Ω < 0.03% THD / 4Ω and 8Ω |
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| Frequency Response | 20 Hz–20 kHz: ±1 dB; -3 dB points: 5 Hz and 50 kHz | ||||
| Damping Factor (1 kHz and below) | > 300 at 8Ω | ||||
| Input Impedance | 10 kΩ unbalanced, 20 kΩ 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 ¼" (6.3 mm) – TRS tip and XLR pin 2 positive Output: Detachable terminal block and Neutrik™ Speakon™ |
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| Controls |
Front: AC switch, Channels 1 & 2 gain knobs Rear: 10-position DIP switch |
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| 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 | ||||
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Dimensions (HWD) 2 RU models 3 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 ears 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 |
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| 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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