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Ashly ne4250

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Product Overview

Network-Enabled (ne) Four-Channel Amplifiers

Our Networkable-Enabled (ne Series) Amplifiers allow a dealer to have instant access to a power amplifier, or a rack of power amplifiers, from anywhere in the world.

Connecting and controlling an amplifier for networked systems has now been simplified with Ashly’s NE Series amplifiers. Network Enabled (NE) amplifiers offer ease of use, setup and control using standard 10/100 Ethernet protocol and Protea NE Software. No special outboard control units are needed.

Four, four-channel models with output power at 250W are available to fill a wide variety of low impedance, 25V, 70V and 100V performance installation or constant voltage applications. NE Series amplifiers are offered two ways; standard input with euroblock connectors and “pe” (Protea Enabled) with euroblock input connectors and world renowned Protea DSP signal processing.

The DSP signal processing library is extensive and utilizes two SHARC 32-bit/ 96kHz processors. Processing blocks include Graphic, Parametric, Notch and Shelving Equalization, High-, Low- and All-Pass Filters (HPF/LPF/APF) with up to 48dB/Octave slopes, Delay, Compressor/Limiter, Gate, Ducking, Auto-leveler, Gain and Signal Generators (sinewave, white and pink noise). A full Matrix Mixer with assignable routing allows any input to drive any or all amplifier outputs. Presets can be used to store and retrieve global parameters of an entire amplifier’s control surface and DSP section.

Additionally, each amplifier also provides DC voltage control of the attenuators which makes it a snap to control volume from remote locations, preset recall, Remote Power Standby and data in and out ports for connecting accessories like the WR-5 to control user selected parameters. There are LED indicators for power, standby, protect, network communications and each channel has a four-step signal meter, bridge mono, temperature and current indicators.

Four-channel Mic-pre, AES/EBU, EtherSound, and CobraNet modules will be available as options. Eight-channel NE series amplifiers are also available.

Available formats:

  • ne4250: Network Power Amplifier 4 x 250w @ 4 Ohms
  • ne4250pe: Network Power Amplifier 4 x 250w @ 4 Ohms with Protea DSP
  • ne4250.10: Network Power Amplifier 4 x 250w @ 100V
  • ne4250pe.10: Network Power Amplifier 4 x 250w @ 100V with Protea DSP

Applications

Features

  • Four Channel Amplifier
  • Ethernet control Is standard
  • Low-Z, 25V, 70V and 100V Models
  • Extensive DSP Available
  • Easy and intuitive user interface
  • Extensive protection circuitry
  • Safety/Compliance: FCC, CE, RoHS
  • Optional CobraNet, EtherSound, AES/EBU, mic preamps
  • Front panel:
    • Level attenuators for each channel
    • Power switch can be disabled by software
    • 4-Step Signal Level and Clip LEDs
  • Rear panel:
    • 10/100 Ethernet port
    • Euroblock inputs
    • Euroblock outputs
    • Remote level control
    • Preset recall
    • Remote power turn-on/off
    • Data in and out ports
  • Watts per channel:
    • 8ohms: 150
    • 4ohms: 250
    • 25V/70V/100V: NR
  • Input Options:
    • Four-channel Mic pre
    • AES/EBU
    • CobraNet
    • EtherSound
  • Accessories:
    • WR-1 2-ch Level Control
    • WR-2 Four Position Switch
    • WR-5 Programmable Selector
    • RD/RW8 8-ch Level Control
    • neWR-5 Programmable Network Remote
    • neRD-8/16 Network Fader Remotes

Specifications

  • Rated Power 8 ohms (per channel): 150W
  • Rated Power 4 ohms (per channel): 250W
  • Rated Power 8 ohms (Bridged): 500W
  • Rated Power 25V, 70V, 100V (per channel): NR
  • S/N (20 Hz-20 kHz, unweighted): >105dB
  • 1/8th Output (Pink Noise): 31.25W
  • 1/8th Draw (Pink Noise): 200W
  • 1/8th Current (Pink Noise): 2.7A
  • Idle Power: 30W
  • Idle Current: 0.4A
  • Weight: Net 21.0 lbs. (9.53kg)
                 Shipping 26.0 lbs. (11.79kg)
  • Frequency Response (8 ohms): 20 Hz - 20k Hz, (unweighted) ±1dB
  • Input Impedance: 20k ohms, balanced
  • Input Sensitivity: 6.2dBu
  • Maximum Input Level: +21dBu
  • Internal HPF ( 25V, 70V, 100V models): (contolled by software) 80Hz (12dB/oct), 400Hz (6dB/oct), and OFF
  • Damping Factor (8 ohms): > 250
  • Cooling: Temperature dependent speed-controlled fan (Front in, Side out)
  • Output Circuitry: Class D
  • Connectors (each channel): Input - Euroblock
                                             Output - Euroblock
  • Front Controls: AC Power Switch, Individual input attenuators
  • Front indicators (LED color): Power (Blue), Standby (Yellow), Protect (Red), Disable (Yellow), Com (Green), Bridge (Green), Signal Level -18dB, -12dB (Green), -6dB (Yellow), Clip (Red), Temp (Yellow)
  • Rear Controls: Ethernet 10/100, Channel bridge switch (Low-Z only), Remote standby, Preset recall (4), Remote Level (4), Remote Data
  • Amplifier and Load Protection: Output Overcurent, Main Supply Rail Overvoltage, Chassis Temperature, Inrush Limiting, Mains Fuse
  • Cordset: 15A Edison 3-Prong IEC
  • Height: 3.50" (88.9mm) 2RU
  • Width: 19” (483 mm)
  • Depth: 15.5” (394mm)
  • Environmental: 40-120deg. F, (4-49deg. C) noncondensing

Product Downloads

  • ne4250 User Manual PDF 1.7 MB
  • ne4250 Data Sheet PDF 0.1 MB

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*Prices are in AUD, include GST and are subject to change. Please call National Audio for pricing and availability on the ne4250.