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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
DISABLE Yellow On, Off
COM Green On, for Ethernet data or Device ID
LED Indicators: Each Channel

Red / Clip

Yellow / -6dB

Green / -18dB, -12dB

BRIDGE Green Per Channel Pair
TEMP Yellow Per Channel
CURRENT Green Per Channel: Proportional to output
ne Models ne4250 ne8250
Channels 4 8
Continuous Average Power Output: Per Channel, Low I models, Stereo Mode, All Channels Driven
8 Ohms 150W 150W
4 Ohms 250W 250W
Low I Output: Bridge Mode, All Channels Driven
8 Ohms 500W 500W
25V, 70V, 100V Distributed Output Models: 20Hz-20kHz 1% THD
25V(per channel 250W 250W
70V (per channel) 250W 250W
100V (per channel) 250W 250W
Line Current Draw: 120VAC Mains (divide in half for 230V)
Standby Mode 190mA 290mA
Idle (no signal) 540mA 565mA
Typical (1/8 power pink noise) 2.85A 5.00A
Maximum (1/3 power pink noise) 6.00A 11.0A
Thermal Dissipation: BTU/hr, All Channels Driven
Standby mode 46,7 63,8
Idle (no signal) 123 187
Typical (1/8 power pink noise) 341 700
Maximum (1/3 power pink noise) 378 775
Specifications Note: OdBu=0.775 VRMS
Frequency Response 20Hz–20kHz, (unweighted) ±1dB
Input Impedance 20k Ohms, Balanced
Voltage Gain 26dB (Low-Z), 32dB (70V), 35dB (100V)
Input Sensitivity 6.2dBu (Low-Z), 4.2dBu (25V), 7.2dBu (70V), 7.2dBu (100V)
Maximum Input Level +21dBu
Software Contolled Internal HPF (25V, 70V, 100V models 80Hz (12dB/oct), 400Hz (6dB oct), OFF
Signal to Noise (20-20k, Unweighted) >107db (2450) >107dB (8250)
Distortion (8 Ohm load) *(SMPTE) <0.5% typical ∆ (THD-N) <0.5% typical (20Hz-20kHz
Damping Factor (8 Ohms, 1kHz) >250
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 Requirements
AC Main 120VAC or 240VAC ±10% (factory set), 50–60Hz
Power Cable Connector 15A Edison, 3-Prong IEC
Weights and Dimensions
Dimensions 19” W x 3.50" H x 16.84” D (483mm x 89mm x 428mm)
Airflow IN through sides, OUT through front
Unit Weight 4250: 23 lbs (10.4 kg) 8250: 24.7 lbs (11.2 kg)
Shipping Weight 4250: 29.1 lbs (13.2 kg) 8250: 30.8 lbs (13.9 kg)
Environmental 40-120° F, (4-49° C) noncondensing
Safety/Compliance cTUVus, CE, FCC, RoHS

This listing is for ne8250.25pe Amplifier only. Use description below as a general reference.

These NE 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 Network-Enabled 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 4-channel ne4250 or 8- channel ne8250 amplifiers are rated at 250W per channel with separate HI-Z and LO-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, Dante™ or CobraNet™ card.

NE Multi-Channel amplifiers are also offered with 240V Line Voltage in either Low- Z or 100V constant voltage output models for International customers.

Power Ratings

Continuous Average Power Output: Per Channel, All Channels Driven

4-Ch Model Panel Views 8Ω (br) 25V* 70V* 100V*
ne 4250 Front  Rear 250W 150W 500W
ne 4250.25 250W
ne 4250.70  —  —  — 250W
ne 4250.10  —  —  — 250W
8-Ch Model Panel Views 8Ω (br) 25V* 70V* 100V*
ne 8250 Front  Rear 250W 150W 500W
ne 8250.25 250W
ne 8250.70 250W
ne 8250.10 250W

* Must be ordered as separate 25V, 70V, or 100V constant voltage models.

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