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Ausstattungsliste: Audio Research REFERENCE 250 SE
Tecnical Details | |
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). |
(Note that actual power output is dependent upon both line voltage and "condition" i.e. if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.) | |
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. |
HUM & NOISE | Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output). |
POWER SUPPLY ENERGY STORAGE | Approximately 900 joules. |
POWER REQUIREMENTS | 105-130VAC 60Hz (260-250VAC 50Hz) 770 watts at rated output, 1000 watts maximum, 380 watts at "idle," 1 watt off. |
TUBES REQUIRED | 3 Matched pair KT150 (Power output V1-6); 1 Matched pair KT150 (Driver V8-9); 2 6H30 (Gain stage V7 and Regulator Driver V10); 1 6550C (Regulator V11). |
DIMENSIONS | 19" (48.3 cm) W x 8.75" (22.2 cm) H x 19.5" (49.5 cm) D. Handles extend 1.5" (3.8 cm) forward. |
WEIGHT | 73 lbs. (33.2 kg) Net; 88 lbs. (40 kg) Shipping. |
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