Ashly Audio NE4250.70 Four-Channel 250W 70V Network-Enabled Power Amplifier

NE4250.70 - Overview

• Features:

  • 10/100 Ethernet comes standard for remote control and monitoring
  • FIR Filter capable (with DSP)
  • Protea DSP, AES3, CobraNet® and Dante® input options
  • DC voltage remote gain control
  • Switched-mode power supply, Class-D output
  • Stepped, calibrated input attenuators
  • Remote power standby
  • Disable all front panel controls via software
  • Temperature sensitive variable speed fan with side-to-front airflow
  • Selectable HPF frequencies (80Hz, 400Hz, off) on 25V, 70V, and 100V models
  • 4-stage level meters
  • Output current and temp indicators
  • Safety/Compliance: cTUVus, CE, FCC, RoHS
   

• Specifications:

  General
  • Frequency Response: 20Hz - 20kHz, (unweighted) ±1dB
  • Input Impedance: 20kΩ, Balanced
  • Voltage Gain:
    - Low-Z: 26dB
    - 70V: 32dB
    - 100V: 35dB
  • Input Sensitivity:
    - Low-Z: 6.2dBu
    - 25V: 4.2dBu
    - 70V: 7.2dBu
    - 100V: 7.2dBu
  • Maximum Input Level: +21dBu
  • Software Controlled Internal HPF:
    - 80Hz (12dB/oct)
    - 400Hz (6dB oct)
    - OFF
  • Signal to Noise (20 - 20k, Unweighted): >107dB
  • Distortion (8Ω load):
    - SMPTE: <0.5% typical
    - THD-N: <0.5% typical (20Hz - 20kHz)
  • Damping Factor (8Ω, 1kHz): >250
  • Output Circuitry: Class D
  • Amplifier/Load Protection: Output Overcurrent, Main Supply Rail Overvoltage, Chassis Temperature, Inrush Limiting, Mains Fuse
  • Channels: 4
  • Continuous Average Power Output per Channel, Low Z Models, Stereo Mode, All Channels Driven:
    - 8Ω: 150W
    - 4Ω: 250W
  • Low Z Output - Bridge Mode, All Channels Driven:
    - 8Ω: 500W
  • Distributed Output (20Hz - 20kHz, 1% THD)(70V per channel): 250W
  • Line Current Draw - 120VAC Mains:
    - Standby Mode: 190mA
    - Idle (no signal): 540mA
    - Typical (1/8 power pink noise): 2.85A
    - Maximum (1/3 power pink noise): 6.00A
  • Thermal Dissipation - All Channels Driven:
    - Standby Mode: 46.7 BTU/hr
    - Idle (no signal): 123 BTU/hr
    - Typical (1/8 power pink noise): 341 BTU/hr
    - Maximum (1/3 power pink noise): 378 BTU/hr
    
    Front Panel
  • Controls: Individual input attenuators, AC Power Switch
  • Cooling: Temp dependent speed-controlled fan (Side-in, Front-out)
  • LED Indicators - Unit Status:
    - POWER: Blue: Switch - On/Off
    - STANDBY: Yellow: Standby, flashing
    - PROTECT: Red: On, Off
    - DISABLE: Yellow: On, Off
    - COM: Green: On, for Ethernet data or Device ID
  • LED Indicators - Each Channel:
    - SIGNAL Level:
     • Red: Clip
     • Yellow: -6dB
     • Green: -18dB, -12dB
    - BRIDGE: Green: Per Channel Pair
    - TEMP: Yellow: Per Channel
    - CURRENT: Green: Per Channel: Proportional to output
    
    Rear Panel
  • Controls:
    - Ethernet
    - Channel bridge switch (Low-Z only)
    - Remote standby
    - 4x Preset recall
    - 8x Remote Level
    - Remote Data
  • I/O Connectors (each channel): Euroblock
    
    Power Requirements
  • AC Main: 120VAC or 240VAC ±10% (factory set), 50 - 60Hz
  • Power Cable Connector: 15A Edison, 3-Prong IEC
    
    Physical
  • Dimensions (HxWxD): 3.50" x 19" x 16.84" (89mm x 483mm x 428mm)
  • Unit Weight: 23lbs (10.4kg)
  • Shipping Weight: 29.1lbs (13.2kg)
  • Airflow: IN through sides, OUT through front
  • Environmental: 40°F - 120°F (4°C - 49°C), non-condensing
   

• GTIN:

  0694970161559