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Ashly ne4250.70 4-Channel Network Enabled Power Amplifier with CNM-2 CobraNet and OPDAC4 Option Cards

SKU: AS425070BC MFR: NE4250.70BC
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Key Features

  • Experience superior sound with this 4-channel network power amplifier.
  • Optimize audio with CobraNet & OPDAC4 cards for pro-level connectivity.
  • Enjoy versatile power output: 150W at 8 Ohms, 250W at 4 Ohms per channel.
  • Class D amplifier ensures high efficiency and reliable audio performance.
  • Easily integrate this installed amplifier using Euroblock input/output.
  • Control remotely via Ethernet for seamless sound system management.
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Special Order?Estimated to Ship: 08/15/2025
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Ashly ne4250.70 Specifications

Front Panel

Front Panel

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  • Controls

    Individual input attenuators, AC Power Switch

  • Cooling

    Temp dependent speed-controlled fan (Side-in, Front-out)

LED Indicators

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  • Unit Status

    Power: Switch: On, Off (Blue)
    Standby: Standby, flashing (Yellow)
    Protect: On, Off (Red)
    Disable: On, Off (Yellow)
    COM: On, for Ethernet data or Device ID (Green)

  • Each Channel

    Signal level: Clip (Red); -6dB (Yellow) and -18dB, -12dB (Green)
    Bridge: Per Channel Pair (Green)
    Temp: Per Channel (Yellow)
    Current: Per Channel: Proportional to output (Green)

Channels

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  • Channels

    4

  • Power Output

    8 Ohm: 150W
    4 Ohms: 250W
    (Continuous Average Power Output: Per Channel, Low Z Models, Stereo Mode, All Channels Driven)

    8 Ohm: 500W (Low Z Output: Bridge Mode, All Channels Driven)

  • Distributed

    70V (Per Channel): 250W

Line Current Draw

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  • Standby Mode

    190mA

  • Idle (no signal)

    540mA

  • Typical

    2.85A (1/8 Power Pink Noise)

  • Maximum

    6A (1/3 Power Pink Noise)

Thermal Dissipation

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  • Standby Mode

    46.7 BTU/hr (All Channels Driven)

  • Idle (no signal)

    123 BTU/hr (All Channels Driven)

  • Typical

    341 BTU/hr (1/8 power pink noise, All Channels Driven)

  • Maximum

    378 BTU/hr(1/3 power pink noise, All Channels Driven)

General

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  • Frequency Response

    20Hz-20kHz, (unweighted) +/-1dB

  • Input Impedance

    20k Ohms, Balanced

  • Voltage Gain

    32dB

  • Input Sensitivity

    7.2dBu

  • Maximum Input Level

    +21dBu

  • Software Controlled Internal HPF

    80Hz (12dB/oct), 400Hz (6dB oct), OFF (25V, 70V, 100V models)

  • Signal to Noise

    >107dB (20-20k, Unweighted)

  • Distortion (8 Ohm load)

    <0.5% (SMPTE, typical)
    <0.5% (THD-N, typical, 20Hz-20kHz)

  • Damping Factor

    >250 (8 Ohms, 1kHz)

  • Output Circuitry

    Class D

  • Amplifier/Load Protection

    Output Overcurrent, Main Supply Rail Overvoltage, Chassis Temperature, Inrush Limiting, Mains Fuse

Rear Panel

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  • Controls

    Ethernet, Channel bridge switch (Low-Z only), Remote Standby, Preset Recall (4), Remote Level (8), Remote Data

  • Connectors (each channel)

    Input: Euroblock
    Output: Euroblock

Power Requirement

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  • AC Mains

    120VAC or 240VAC +/-10% (factory set), 50-60Hz

  • Power Cable Connector

    15A Edison, 3-Prong IEC

Airflow

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  • Airflow

    IN through sides, OUT through front

Environmental

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  • Environmental

    40 to 120 degree F (4 to 49 degree C) noncondensing

Certificates

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  • Safety/Compliance

    TUV, CE, FCC, RoHS

Physical

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  • Dimensions (W x H x D)

    19 x 3.50 x 16.84" (483 x 89 x 428mm)

  • Weight

    23 lb (10.4kg)

About Ashly ne4250.70

While maintaining the essence of high-performance audio amplification, the ne4250.70 4-Channel Network Enabled Power Amplifier stands out with its advanced Class-D technology and energy-efficient switching power supply. This state-of-the-art amplifier is part of the ne (Network-Enabled) Series, which is engineered to seamlessly integrate into networked audio systems. The ne4250.70 amplifier simplifies connectivity and control, utilizing standard 10/100 Ethernet protocol and the intuitive Protea ne Software, eliminating the need for specialized external control units.

The ne4250.70 amplifier is designed for versatility, offering a robust 250 Watts RMS per channel into 70V loads across four channels. For applications requiring more power, the amplifier can be configured into bridged-mono mode, combining channels 1+2 or 3+4 to deliver a substantial 500 Watts RMS into a 140V load. This flexibility makes it an ideal choice for a wide range of professional audio installations.

Connectivity is a breeze with Euroblock input and output connectors, ensuring secure and reliable connections. The balanced analog inputs provide pristine audio quality, while the remote standby feature allows for convenient power-up. Additionally, DC remote level control and contact closure preset recall offer further operational ease. The amplifier's Ethernet capabilities extend to comprehensive control and monitoring of vital functions such as power, level, mute, polarity, temperature, current, and fault conditions, all accessible remotely.

The ne4250.70 boasts an impressive frequency response of 20Hz to 20kHz +/-1.0dB, ensuring full-range audio reproduction with minimal deviation. The Signal-to-Noise ratio exceeds 105dB unweighted, providing a clean and clear audio output. Moreover, SMPTE intermodulation distortion is kept below 0.5% into an 8 Ohm load, 10dB below rated output, highlighting the amplifier's fidelity and low distortion characteristics.

The front panel of the ne4250.70 is designed for at-a-glance monitoring, displaying the status of power, standby, protect, power switch disable, signal level, bridge, over-temperature, over-current, and Ethernet communication. This immediate visual feedback ensures that users can quickly assess and adjust the amplifier's performance as needed.

For installations requiring digital audio networking, the amplifier is capable of being outfitted with factory-installed AES3, CobraNet, or Dante interface options, further enhanced by the addition of a 4-Channel DAC card. This makes the ne4250.70 a future-proof investment for audio professionals looking for a scalable solution.

The ne4250.70 is designed with practicality in mind, fitting into a standard 19-inch rack and occupying only two rack spaces (3.5 inches high). Its lightweight design, weighing in at 23 pounds (10.4kg) or less, makes it both portable and easy to install.

In summary, the ne4250.70 4-Channel Network Enabled Power Amplifier with CNM-2 CobraNet and OPDAC4 Option Cards is a sophisticated, high-quality solution for modern audio systems, offering unparalleled control, efficiency, and audio performance.

Ashly ne4250.70 Features

  • 10/100 Ethernet comes standard for remote control and monitoring
  • 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: TUV, CE, FCC, RoHS

Warranty Information

This product has a limited warranty of 60 months for parts and 60 months for labor.

Key Features

  • Experience superior sound with this 4-channel network power amplifier.
  • Optimize audio with CobraNet & OPDAC4 cards for pro-level connectivity.
  • Enjoy versatile power output: 150W at 8 Ohms, 250W at 4 Ohms per channel.
  • Class D amplifier ensures high efficiency and reliable audio performance.
  • Easily integrate this installed amplifier using Euroblock input/output.
  • Control remotely via Ethernet for seamless sound system management.

What's in the box:

  • ne4250.70 4-Channel Network Enabled Power Amplifier
  • Ashly 5 Year Limited Warranty