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Audio Research Reference 250 SE Amplifier
Audio Research Reference 250 SE Amplifier
Categorie: AmplificatoareBrand: Audio Research
Stare: Produs utilizat
Tip amplificator: Stereo
Tehnologie: Lampi
Top Condition! World Wide Shipping!
Low PayPal fee and shipping rates.
The colour of the product is black.
For safe shipping it has the original boxes and accessories.
TECHNICAL SPECIFICATION
POWER OUTPUT: 250 watts per channel continuous from 20Hz to 20kHz.
1kHz total harmonic distortion typically 0.5% at 250 watts, below 0.04% 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.
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: (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: (48.3 cm) W x (22.2 cm) H x (49.5 cm) D. Handles extend (3.8 cm) forward.
WEIGHT: 33 kg Net; 40 kg Shipping.
Made in U.S.A.
Low PayPal fee and shipping rates.
The colour of the product is black.
For safe shipping it has the original boxes and accessories.
TECHNICAL SPECIFICATION
POWER OUTPUT: 250 watts per channel continuous from 20Hz to 20kHz.
1kHz total harmonic distortion typically 0.5% at 250 watts, below 0.04% 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.
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: (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: (48.3 cm) W x (22.2 cm) H x (49.5 cm) D. Handles extend (3.8 cm) forward.
WEIGHT: 33 kg Net; 40 kg Shipping.
Made in U.S.A.
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