Description
Brand: Audio Research
Type: Solid-state Monoblock Power Amplifier
Model: Reference 250 Monoblock Amplifier
Function: Flawless
Usage State: Second-Hand
Appearance: As good as new
SPECIFICATIONS:
Power Output: 250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Approximate actual power available at ’clipping’ 270 watts (1kHz)
Power Bandwidth: (-3dB points) 5Hz to 70kHz
Frequency Response: (-3dB points at 1 watt) 0.5Hz to 110 kHz
Input Sensitivity: 2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms.)
Input Impedance: 200K ohms Balanced
Output Taps: 4, 8, 16 ohms
Output Regulation: Approximately 0.9dB 16 ohm load to open circuit (Damping factor approximately 10)
Overall Negative Feedback: 8.8dB
Slew Rate: 20 volts/microsecond
Rise Time: 1.5 microseconds
