ราคา 83,300.00 บาท
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ประหยัดไป 14,700.00 บาท
*ราคาไม่รวมภาษีมูลค่าเพิ่ม 7%
4-Channel Rackmount Power Amplifier - 200 Watts per Channel @ 70V
The 70V CX-204V 4 Channel Power Amplifier from QSC is designed to provide power, portability and professional sound quality at an affordable price. It is used for reproducing audio in applications requiring background music such as restaurants, small offices, conference rooms and more. It features a 300W peak solid state amplifier, and four input channels in a 2 RU 14" deep enclosure. This amp has a 3-position Euro-style detachable barrier block. The barrier block has inputs for 1, 2, 3, and 4 input connections. In terms of outputs, it features a six-position barrier strip with monitor connections for channels 1+2, 3+4. There is also an HD-15 Data-Port connector for computer control and monitoring of the amp.
The amplifier has LED indicators on the front panel showing level, clip/protect, bridged mode and power-on status. It is built with a front AC-switch and has four gain control knobs, one for each channel. The CX-204V has DIP switches for Channel 1 and 2 on the back and allows you to turn on or off features such as clip limiter, LF filter, frequency select, parallel inputs or stereo and bridge modes. This amp comes with a power cable and is RoHS compliant.
Features
SPECIFICATIONS | CX204V | CX254 | CX404 |
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POWER PER CHANNEL, STEREO MODE (all channels driven) | |||
8Ω, 20 Hz–20 kHz 0.05% THD | - | 170 W | 250 W |
4Ω, 20 Hz–20 kHz 0.05% THD | - | 250 W | 400 W* |
2Ω, 1 kHz 1% THD | - | 450 W | not recommended |
70 V, 20 Hz–20 kHz 0.05% THD | 200 W | - | - |
70 V, 1 kHz 0.05% THD | 220 W | - | - |
70 V, 1 kHz 1% THD | 300 W | - | - |
POWER, BRIDGED MONO MODE | |||
16Ω, 20 Hz–20 kHz 0.1% THD | - | 340 W | 500 W |
8Ω, 20 Hz–20 kHz 0.1% THD | - | 500 W | 800 W* |
4Ω, 1 kHz 1% THD | - | 900 W | not recommended |
140 V, 20 Hz–20 kHz 0.1% THD | 400 W | - | - |
140 V, 1 kHz 0.05% THD | 440 W | - | - |
140 V, 1 kHz 1% THD | 600 W | - | - |
Noise, 20 Hz–20 kHz | >106 dB | >106 dB | >105 dB |
Input Sensitivity | 1.26 V rms | 1.22 V rms | 1.22 V rms |
Maximum Voltage Gain | 35 dB | 29 dB | 31 dB |
Input Clipping | 10 V rms (+22 dBu) | 10 V rms (+22 dBu) | 10 V rms (+22 dBu) |
Output Circuitry Class | AB+B | AB+B | AB+B |
Distortion (SMPTE-IM) | Less than 0.02% | Less than 0.01% | Less than 0.01% |
ALL MODELS | |||
Distortion (Typical) 20 Hz–20 kHz: 10 dB below rated power 1.0 kHz and below: full rated power |
Less than 0.01% THD Less than 0.01% THD |
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Frequency Response (typical) | 20 Hz–20 kHz, ± 0.2 dB 8 Hz–50 kHz, +0/-3 dB | ||
Damping Factor |
Greater than 500 (1 kHz and below)
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Input Impedance |
6 kΩ unbalanced, 12 kΩ balanced
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Cooling |
Variable speed fan, rear to front airflow through tunnel heat sink
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Connectors, each channel |
Input: 3 position Euro-style detachable barrier block, channels 1, 2, 3, 4
DataPort: two HD-15 connectors—Ch 1+2, Ch 3+4 Output: Six-position barrier strip with monitor connections, Ch 1+2, Ch 3+4 |
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Amplifier Protection |
Full short circuit, open circuit, thermal, ultrasonic, & protection. Stable into reactive or mismatched loads.
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Load Protection |
On/off muting, DC-fault power supply protection
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Indicators |
PARALLEL INPUTS: Red LED
BRIDGED: Yellow LED PWR-ON: Green LED |
CLIP/PROT: Red LED (1 per channel)
LEVEL-10 dB: Yellow LED (1 per channel) LEVEL-20 dB: Yellow LED (1 per channel) SIGNAL -35 dB: Green LED (1 per channel) |
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Controls |
Controls Front: AC switch, four gain knobs
Rear: Two DIP switch gangs—channels 1 and 2; channels 3 and 4: clip limiter on/off, LF filter on/off, LF filter freq select 33 Hz or 75 Hz for non-V models; 50 Hz or 75 Hz for V models; inputs parallel or stereo; bridge mode |
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Dimensions |
19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall (2 rack spaces),
14" (35.6 cm) deep (from front mounting rails) |
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Weight |
21 lb (9.5 kg) net, 27 lb (12.3 kg) shipping
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Power Requirements |
100, 120, 230 V AC, 50–60 Hz
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CURRENT CONSUMPTION | CX204V | CX254 | CX404 | |
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Idle current (no or very low audio signal) (Multiply currents by 0.5 for 230 V units.) |
0.8 A | 0.7 A | 0.7 A | |
1/8 of full power (pink noise) (typical of program material at maximum unclipped power) |
8Ω + 8Ω 4Ω + 4Ω 2Ω + 2Ω 70 V + 70 V |
- - - 8.3 A |
5.8 A 9.2 A 14.3 A - |
8.1 A 12.4 A not rated - |
1/3 of full power (pink noise) (typical of program material with severe clipping) |
8Ω + 8Ω 4Ω + 4Ω 2Ω + 2Ω 70 V + 70 V |
- - - 12.7 A |
8.8 A 14.2 A 21.7 A - |
12.2 A 19.3 A not rated - |