QSC CX254

cx254
70,000.00 THB ต่อหน่วย Manufacturer: QSCQSC

รายละเอียดย่อ :
เครื่องขยายเสียง 4 channels, 170 watts/ch at 8Ω, 250 watts/ch at 4Ω, 450 watts/ch at 2Ω
รายละเอียดทั้งหมด :

 

QSC CX254 เครื่องขยายเสียง 4 channels, 170 watts/ch at 8Ω, 250 watts/ch at

4Ω, 450 watts/ch at 2Ω

FEATURES

  • Three models that range in power from 170 watts to 450 watts per channel
  • Compact size-all models only 2 RU and 14" deep for reduced rack cost and floor space
  • Channels 1&2 and 3&4 bridgeable for maximum flexibility
  • Active Inrush Limiting eliminates AC inrush current, removing the need for expensive power sequencers
  • HD15 DataPort connector for Q-Sys and QSControl computer control and monitoring
  • Custom integrated security cover for tamper-proof installations
  • Variable speed fan for low noise
  • 1 dB detented gain controls for fast and accurate gain settings
  • Detachable Euro style input connectors
  • DIP switch control for clip limiters, high pass filters, bridge mono and parallel operation
  • Exclusive PowerLight switch-mode power supply technology for high performance and compact size
  • Selectable high-pass filters protect speakers and prevent speaker transformer saturation with minimaleffect on program material (33 Hz or 75 Hz on non-V models, 50 Hz or 75 Hz on V models)
  • Comprehensive front panel indicators including signal, clip, protect and QSC's exclusive bridge monoand parallel input LEDs
  • Barrier strip output connector
  • Comprehensive protection circuitry including DC, infrasonic, thermal overload and short circuit protection
  • High-performance Class AB+B complementary bipolar output circuitry
  • Light weight-all models only 21 pounds (9.5 kg) for easier racking and shipping
  • 3-year warranty plus optional 3-year extended service contract
  • All CX Series amplifiers meet the European Union's, 2006 RoHS directive to restrict the use of hazardous materials used in electronic devices.
SPECIFICATIONS CX204V CX254 CX404
  STEREO MODE (All Channels Driven)
8 ohms 20 Hz-20 kHz 0.05% THD - 170W 250W
4 ohms 20 Hz-20 kHz 0.05% THD - 250W 400W*
2 ohms 1 kHz 1% THD - 450W not recommended
70V 20 Hz-20 kHz 0.05% THD 200W - -
70V 1 kHz 0.05% THD 220W - -
70V 1 kHz 1% THD 300W - -
  BRIDGED MONO MODE
16 ohms 20 Hz-20 kHz 0.1% THD - 340W 500W
8 ohms 20 Hz-20 kHz 0.1% THD - 500W 800W*
4 ohms 1 kHz 1% THD - 900W not recommended
140V 20 Hz-20 kHz 0.1% THD 400W - -
140V 1 kHz 0.05% THD 440W - -
140V 1 kHz 1% THD 600W - -
Noise, 20Hz-20kHz  
Input Sensitivity 1.26Vrms 1.22Vrms 1.22Vrms
Gain (for full-rated output power) 35 dB @ 70.7V 29 dB @ 8 ohms 31 dB @ 8 ohms
Input Clipping 10 Vrms (+22 dBu) 10 Vrms (+22 dBu) 10 Vrms (+22 dBu)
Output Circuitry 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
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)
Input Impedance
6k ohms unbalanced, 12k ohms balanced
Cooling
Variable speed fan, rear to front airflow through tunnel heat sink
Connectors, each channel

 
Input: 3 position Euro-style detachable barrier block, Ch 1,2,3 & 4
DataPort: HD-15 Connector, Ch 1+2, Ch 3+4
Output: Six-position barrier strip with monitor connections, Ch 1+2, Ch 3+4
Amplifier Protection
 
Full short circuit, open circuit, thermal, ultrasonic, & protection. Stable into reactive or mismatched loads.
Load Protection
On/off muting, DC-fault power supply protection
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)
Controls


 
Controls Front: AC switch, Ch.1 and Ch.2 gain knobs
Rear: DIP switch for Ch.1 and Ch.2: 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
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)
Weight
21 lb (9.5 kg) net, 27 lbs (12.3 kg) Shipping
Power Requirements
100, 120, 230 Vac, 50-60 Hz

 

CURRENT CONSUMPTION   CX204V CX254 CX404
Idle current
(Multiply currents by 0.5 for 230V units.)
0.8A 0.7A 0.7A
1/8 Power (Pink Noise)
(typical of program material
at maximum unclipped power)
8 ohms
4 ohms
2 ohms
70 volts
-
-
-
8.3A
5.8A
9.2A
14.3
-
8.1A
12.4A
not rated
-
1/3 Power (Pink Noise)
(typical of program material with severe clipping)
8 ohms
4 ohms
2 ohms
70 volts
-
-
-
12.7A
8.8A
14.2
21.7A
-
12.2A
19.3A
not rated
-