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Ashly ne4250.25pe Network-Enabled 250W Four-Channel 25V Amplifier with DSP

BH #ASNE425025PE • MFR #NE4250.25PE
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Ashly ne4250.25pe Network-Enabled 250W Four-Channel 25V Amplifier with DSP
Key Features
  • Class-D Power Output at 250W per Channel
  • Extensive Built-In DSP Functions
  • Protea Software Control via Ethernet
  • Euroblock Inputs & Outputs
The Ashly ne4250.25pe is a 2 RU rack-mountable, network-enabled, four-channel amplifier with DSP capable of delivering 250W per channel at a constant voltage of 25V for installation in retail applications, paging systems, warehouses, and more. Its Class-D output circuitry and switched-mode power supply ensure high efficiency and reliable performance. A temperature-sensitive, variable-speed fan along with built-in amplifier and load protection inhibit overheating and overcurrent conditions. The ne4250.25pe has an integrated DSP signal processing library, which utilizes two SHARC 32-bit / 96 kHz processors. This library includes processing blocks such for dynamics controls, gain functions, graphic and parametric EQ, crossover functions, delay, metering, and a signal generator.

Euroblock inputs and outputs allow standardized connectivity with line mixers and constant-voltage speakers, and the per-channel stepped, calibrated input attenuators offer easy recallability. The selectable high-pass filter can be set to 12 dB/octave at 80 Hz or 6 dB/octave at 400 Hz, thereby preventing excessive low frequencies from reaching your speakers. Setup and control of the ne4250.25pe are conveniently executed via Ashly Protea software using standard 10/100 Ethernet protocol.

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Ashly ne4250.25pe Overview

The Ashly ne4250.25pe is a 2 RU rack-mountable, network-enabled, four-channel amplifier with DSP capable of delivering 250W per channel at a constant voltage of 25V for installation in retail applications, paging systems, warehouses, and more. Its Class-D output circuitry and switched-mode power supply ensure high efficiency and reliable performance. A temperature-sensitive, variable-speed fan along with built-in amplifier and load protection inhibit overheating and overcurrent conditions. The ne4250.25pe has an integrated DSP signal processing library, which utilizes two SHARC 32-bit / 96 kHz processors. This library includes processing blocks such for dynamics controls, gain functions, graphic and parametric EQ, crossover functions, delay, metering, and a signal generator.

Euroblock inputs and outputs allow standardized connectivity with line mixers and constant-voltage speakers, and the per-channel stepped, calibrated input attenuators offer easy recallability. The selectable high-pass filter can be set to 12 dB/octave at 80 Hz or 6 dB/octave at 400 Hz, thereby preventing excessive low frequencies from reaching your speakers. Setup and control of the ne4250.25pe are conveniently executed via Ashly Protea software using standard 10/100 Ethernet protocol.

DSP signal processor powered by two SHARC 32-bit / 96 kHz processors with blocks for Graphic, Parametric, Notch and Shelving Equalization, High-, Low-, and All-Pass Filters (HPF/LPF/APF) with up to 48 dB/octave slopes, Delay, Compressor/Limiter, Gate, Ducking, Auto-leveler, plus Gain and Signal Generators (sinewave, white and pink noise)
Supports control and setup over Ethernet connection via Ashly Protea software
Euroblock connections for inputs and outputs
The ne4250.25pe has multiple layers of protection circuits including overcurrent, thermal, and mains protection
Class-D output circuitry with switched-mode power supply
Stepped, calibrated input attenuators
Selectable software-controlled internal high-pass filter at 80 Hz (12 dB/octave) or 400 Hz (6 dB/octave)
Temperature-sensitive, variable-speed fan with side-to-front airflow
4-stage level meters
Rack-mountable enclosure occupies 2 RU

Ashly ne4250.25pe Specs

Power Rating
250 W per channel
Amplifier Class
Class-D
Voltage
25 V
Voltage Gain
Not specified by manufacturer
Damping Factor
> 250 (8 Ohms, 1 kHz)
Frequency Response
20 Hz to 20 kHz ±1 dB (unweighted)
Input Sensitivity
4.2 dBu
Input Impedance
20 kOhms, balanced
Maximum Input Level
+21 dBu
Signal-to-Noise Ratio
> 107 dB (20 Hz to 20 kHz, unweighted)
Distortion
SMPTE: < 0.5% typical (8-Ohm load)
THD-N: < 0.5% typical (8-Ohm load, 20 Hz to 20 kHz)
High-Pass Filter
12 dB/octave at 80 Hz
6 dB/octave at 400 Hz
Off
Current Draw
Standby: 190 mA
Idle: 540 mA
Typical (1/8 Power Pink Noise): 2.85 A
Maximum (1/3 Power Pink Noise): 6 A
Thermal Dissipation
Standby: 46.7 BTU/hour
Idle: 123 BTU/hour
Typical (1/8 Power Pink Noise): 341 BTU/hour
Maximum (1/3 Power Pink Noise): 378 BTU/hour
Input Connections
4 x Euroblock
1 x RJ45
Output Connectors
1 x 4-channel Euroblock
Control Ports
Euroblocks for remote standby, preset recall, data, and level control
Controls Front Panel
AC power switch
Individual input attenuators
Indicators
Power: Blue
Standby: Yellow
Protect: Red
Disable: Yellow
Com: Green
Bridge: Green
Signal Level at -12/-18 dB: Green
Signal Level at -6 dB: Yellow
Signal Level at Clipping: Red
Temp: Yellow
Current: Green
Cooling
Temperature-dependent, speed-controlled fan (front in, side out)
Environmental
40 to 120°F / 4 to 49°C (non-condensing)
DSP
Chips: 2 x SHARC ADSP-21262
A/D: 24-bit Burr Brown PCM4204
D/A: 24-bit Burr Brown PCM4104
DSP Bit Depth: 32-bit floating point
DSP Sample Rates: 48 kHz, 96 kHz
Latency at 48 kHz: 1.42 ms
Latency at 96 kHz: 0.71 ms
Power Requirements
120 or 240 VAC (±10%), 50/60 Hz via 15 A Edison 3-prong IEC
Dimensions
19.0 x 3.5 x 16.9" / 483 x 89 x 428 mm
Weight
23 lb / 10.4 kg
Approvals and Compliance
cTUVus, CE, FCC, RoHS
Specialties
Control via Ethernet connection with Protea NE software
Built-in DSP for advanced signal processing

Ashly ne4250.25pe Reviews

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