EPA254

Quad-channel Class-D amplifier 4 x 250W - crossover

1
Compact & lightweight single rackspace design
2
Class D amplifier technology
3
Energy star certified
4
Individual channel volume controls & indicators
5
Convection cooled
6
Terminal block output connections
7
XLR input connections
8
Operation mode switch
9
Crossover mode switch
  1. Compact & lightweight single rackspace design
  2. Class D amplifier technology
  3. Energy star certified
  4. Individual channel volume controls & indicators
  5. Convection cooled
  6. Terminal block output connections
  7. XLR input connections
  8. Operation mode switch
  9. Crossover mode switch

This energy efficient stereo amplifier will automatically switch to a standby mode when no audio signals are detected (less than 1Watt power consumption in standby mode). Their weight and compact size makes these single rack space amplifiers ideal for both fixed and mobile installations. Their use of Class-D technology ensures excellent efficiency as well as outstanding sound quality. Thanks to the complete passively cooled entity only a minimal of maintenance is needed, while ensuring maximum reliability. The quad channel construction consists of four channels with the possibility to use two independent stereos. In combination with the integrated active crossover network, it offers a complete solution for compact stereo applications with a bass cabinet. Various specific functions and advanced circuitry guarantees an optimal protection against DC malfunctioning, short circuit, overheating and overload. Signal input connections are integrated with balanced XLR connectors. Outputs are connected using terminal block connectors.

System specifications
Signal / Noise > 90 dB
THD+N (@ 1 kHz) < 0.1%
Crosstalk (@ 1 kHz) > 70 dB
Technology Class-D
Protection DC Short circuit
Over heating
Over load
Signal limiting
Cooling Convection cooled
Operating temperature 0° ~ 40° @ 95% Humidity
Frequency Response (± 3 dB) 20 Hz - 20 kHz
Power Supply AC Input: 100-120V/220-240V~ 50/60Hz
Note: Standard voltage and frequency of electricity varies from country to country. Please contact your local distributor to ensure suitable product variant voltage and frequency compatibility.
Switching mode
Consumption 438 W
Inputs Sensitivity (1W/1m) 0 dB (1V RMS)
Impedance 12 kΩ balanced
Connector 3-pin XLR female
Outputs Connector 2-pin Euro Terminal Block (Pitch - 5.08 mm)
Power Consumption Standby 0.7 Watt (30 min standby time)
RMS Power @ 4 Ω Stereo 4 x 250 W
@ 8 Ω Bridge 2 x 500 W
@ 8 Ω Stereo 4 x 130 W
Product features
Dimensions 482 x 44 x 330 mm (W x H x D)
Weight 4.700 kg
Mounting 19”
Unit height 1 HE
Construction Steel
Colours Black

Product

  • How is the power consumption of amplifiers tested & indicated?

    As the power consumption of an amplifier, strongly depends on how hard the amplifier is driven, measurements are provided for various loads: idle, 1/8 of average full power, 1/3 of average full power, and full power.

    Idle 
    Current draw at idle or with very low signal level

    1/8 Power: Pink Noise
    Amplifiers are tested using pink noise signals to simulate real-world speech and music signals.  It approximates operating with music or voice with light clipping and represents the amplifier's typical "clean" maximum level, without audible clipping. This 1/8 power signal provides a very good approximation of how hard an amplifier would be driven by typical real-world speech/music signals, assuming those signals were being driven as loud as possible without clipping the amplifier.

    1/3 Power: Pink Noise
    1/3 Power Pink Noise is similar to 1/8 Power Pink Noise, except that it is a significantly more powerful input signal. It approximates operating with music or voice with very heavy clipping and a very compressed dynamic range. This 1/3 power signal provides an approximation of how hard an amplifier would be driven by typical real-world speech/music signals, assuming those signals were being driven loud enough to clip the amplifier heavily, and produce severe, audible distortion.

    Full Power
    Current draw at full power is measured with a sine wave at its maximum possible level. However, it does not represent any real-world operating condition and represents the absolute extremes that an amplifier could ever experience.
     

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