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

Description

NE Series Multi-Channel, Network-Enabled Power Amplifiers
Our multi-channel ne (Networked-Enabled) Series Amplifiers are uniquely designed around an energy efficient Class-D platform with a switching power supply.

Connecting and controlling an amplifier for networked systems has now been simplified with ne Amplifiers. This line offers ease of use, setup and control using standard 10/100 Ethernet protocol and Protea ne Software. No special outboard control units are needed.

Choose either the ne4250 (4-channel) or ne8250(8-channel) packages rated at 250W per channel, with separate Hi-Z and Low-Z models. ne Series Amplifiers are offered in two separate platforms-the standard network amplifier or a network amplifier with an on-board Protea DSP Processor. Each can be customized for any installation by adding your choice of AES3 inputs, mic pre inputs, CobraNet or Dante modules.

ne4250.70: Architect & Engineering Specs
The four-channel power amplifier shall deliver a minimum power of 250 Watts RMS per channel into 70V loads with all channels operating. When switched into bridged-mono mode, channels 1+2 or 3+4 of the amplifier shall deliver at least 500 Watts RMS into a 140V load. The power amplifier shall include Euroblock input connectors and Euroblock output connectors. It shall have balanced analog inputs.

The power amplifier shall have remote standby for power up, DC remote level control and contact closure preset recall. It shall have Ethernet control and monitoring of power functions, level, mute, polarity, temperature, current, and amplifier fault conditions. Frequency response shall be 20Hz to 20kHz +/-1.0dB.

Signal-to-Noise shall be greater than 105dB unweighted and SMPTE intermodulation distortion shall be less than 0.5% into an 8 Ohm load, 10dB below rated output. The front panel shall provide the status of power, standby, protect, power switch disable, signal level, bridge, over-temperature, over-current, and Ethernet communication.

The power amplifier will be capable of having factory installed AES3, CobraNet, or Dante interface options with the addition of a 4-Channel DAC card. The amplifier shall mount in a standard 19 inch rack using two spaces (3.5. high) and weigh 23 pounds (10.4kg) or less.

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

Ashly ne4250.70 Specifications
Front Panel
Controls
Individual input attenuators, AC Power Switch
Cooling
Temp dependent speed-controlled fan (Side-in, Front-out)
LED Indicators
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
Channels
4
Power
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
Standby Mode
190mA
Idle (no signal)
540mA
Typical
2.85A (1/8 Power Pink Noise)
Maximum
6A (1/3 Power Pink Noise)
Thermal Dissipation
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
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
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
AC Mains
120VAC or 240VAC +/-10% (factory set), 50-60Hz
Power Cable Connector
15A Edison, 3-Prong IEC
Airflow
Airflow
IN through sides, OUT through front
Environmental
Environmental
40 to 120 degree F (4 to 49 degree C) noncondensing
Certificates
Safety/Compliance
TUV, CE, FCC, RoHS
Physical
Dimensions (W x H x D)
19 x 3.50 x 16.84″ (483 x 89 x 428mm)
Weight
23 lb (10.4kg)