ราคาพิเศษ สอบถามโทร 080-6144774 ,02-9810944
QSC CX254 เพาเวอร์แอมป์ เครื่องขยายเสียง 4 Channel Lo-Z power amp
Features
· Three four-channel 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
· Bridgeable channels 1 + 2 and 3 + 4, 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 minimal effect 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 mono and 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.
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Power Rating
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Stereo @ 2 Ohms: 450 Watts per Channel
Stereo @ 4 Ohms: 250W per Channel
Stereo @ 8 Ohms: 170W per Channel
Bridge-Mono @ 4 Ohms: 900W per Channel
Bridge-Mono @ 8 Ohms: 500W per Channel
Bridge-Mono @ 16 Ohms: 340 Watts per Channel
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Damping Factor
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>500(1kHz and below)
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Input Sensitivity
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1.22 Vrms
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Input Impedance
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12 kohms(Balanced)
6 kohms(Unbalanced)
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Gain
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29dB @ 8 ohms
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Frequency Response
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20Hz - 20kHz, +/- 0.2 dB
8Hz - 50kHz, +0, -3 dB
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Signal-to-Noise Ratio
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Not Specified by Manufacturer
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Total Harmonic Distortion (THD)
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<0.01%, 10db Below Rated Power, 20Hz - 20kHz
<0.01%, Full Rated Power, 1kHz and below
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Input Connections
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4 x 3-Position Euroblock Connectors
2 x Dataport HD-15(Channel 1+2, Channel 3+4)
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Output Connectors
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1 x 6-Position Barrier Strip with Monitor Connections(Channel 1+2, Channel 3+4)
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Controls Front Panel
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1 x Power Switch
4 x Rotary Gain Knobs
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Controls (Rear)
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2 x Clip Limiter On/Off Switches
2 x LF Filter On/Off Switch
2 x LF 33Hz or 75Hz Frequency Select Switch
2 x Parallel or Stereo Input Select Switches
1 x Bridge Mode Select Switch
(Note: Switches above are duplicate DIP Switch sets for Channel 1+2, Channel 3+4)
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Indicators
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1 x Green Power On LED Indicator Lights
2 x Yellow Bridged MODE LED Indicator Lights(Channel 1+2, 3+4)
2 x Red Parallel Mode LED Indicator Lights(Channel 1+2, 3+4)
4 x Red Clip/Protect LED Indicator Lights
4 x Yellow Level -10dB LED Indicator Lights
4 x Yellow Level -20dB LED Indicator Lights
4 x Green Signal -35dB LED Indicator Lights
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Cooling
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Variable Speed Fan, Rear to Front Airflow through Tunnel Heat Sink
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Power Consumption
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14.3A(2 Ohms Stereo, 120V)
9.2A(4 Ohms Stereo, 120V)
5.8A(8 Ohms Stereo, 120V)
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Dimensions (WxHxD)
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19 x 3.5 x 14" (483 x 89 x 356mm)
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Weight
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21 lbs (9.5kg)
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Specialties
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Powerwave Power Supply
Varispeed Fan Cooling
Custom Integrated Security Cover
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