Operating Manual - NE Multi Channel Power Amplifier
14
6. SPECIFICATIONS
General Power Amplifier Specifications
0dBu = 0.775V rms
Base Model
4250
8250
120VAC 230VAC 120VAC 230VAC
Continuous Average Power Output Per Channel
Low Z models, Stereo Mode, all channels driven
8
Ω
, 20Hz-20kHz 1%THD . . . . . . . . . . . . . . . . . . . .150W 150W 150W 150W
4
Ω
, 20Hz-20kHz 1%THD . . . . . . . . . . . . . . . . . . . .250W 250W 250W 250W
Low Z models, Bridge Mode, all channels driven
8
Ω
, 20Hz-20kHz 1%THD . . . . . . . . . . . . . . . . . . . .500W 500W 500W 500W
Hi Z models, 25V, 70V, or 100V distributed output
20Hz-20kHz 1%THD, per channel . . . . . . . . . . . . .250W 250W 250W 250W
Line Current Draw (all channels driven)
Standby mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190mA 95mA 290mA 145mA
Idle (no signal). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .540mA 270mA 565mA 283mA
Typical (1/8 power pink noise). . . . . . . . . . . . . . . . . .2.85A 1.43A 5.00A 2.50A
Maximum (1/3 power sine wave) . . . . . . . . . . . . . . . .6.00A 3.00A 11.0A 5.50A
Thermal Dissipation (BTU/hr, all channels driven)
Standby mode, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46.7
46.7
63.8
63.8
Idle (no signal). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
123
187
187
Typ (1/8 power pink noise). . . . . . . . . . . . . . . . . . . . .341
341
700
700
Max (1/3 power sine wave) . . . . . . . . . . . . . . . . . . . .
378
378
775
775
Signal to Noise (20Hz-20KHz, unweighted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>105dB
Distortion (SMPTE, typical) - 8 ohm load, 10dB below rated power: . . . . . . . . . . . . . . . . .<0.5%
Distortion (THD-N, typical) - 8 ohm load, 10dB below rated power, 20Hz-20kHz:. . . . . . .<0.5%
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Hz-20kHz, +/-1dB
Damping Factor (8 ohm load, <1kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>250
Input Impedance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20K Ohm, balanced
Maximum Input Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+21dB
Cooling
. . . . . . . . . . . . . . . temperature controlled fan, cool air is drawn in from the sides and blown out the front
Control Network. . . . . . . . Standard 100MB Ethernet
Front Panel Indicators. . . per channel: Clip/Mute, -6dB, -12dB, -18dB, Temp, Current, Bridge (per pair)
overall: Power, Standby, Protect, Power Switch Disable, Comm
Control Surface and Amp LEDs: Level meters are in dB below rated output
Attenuators. . . . . . . . . . . . per channel: front panel, software, offset link group, and remote
Input/Remote Connectors. Euroblock (5.08mm)
Output Connectors. . . . . . Euroblock (7.62mm)
Amplifier Protection. . . . . inrush current limitation, temperature monitoring, output over-current protection, mains fuses
Power Requirements . . . . 120VAC or 240VAC (factory set) ±10%, 50/60Hz
Power Cable Connector. . 15A Edison
Unit Dimensions. . . . . . . . 19”W x 3.5”H x 16.84”D (483 x 89 x 428mm)
Unit Weight . . . . . . . . . . . ne4250: 23 lbs (10.4kg), ne8250: 24.7 lbs (11.2kg)
Shipping Weight . . . . . . . . ne4250: 29.1 lbs (13.2kg), ne8250: 30.8 lbs (13.9kg)
Environmental:
. . . . . . . . 40°-120°F, (4°-49°C), noncondensing
Safety/Compliance . . . . . . cTUVus, FCC Class B, CE, RoHS
