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Audio Research Reference 5 buizen voorversterker. In zilverkleurige uitvoering. Originele afstandsbediening en gebruiksaanwijzing aanwezig. Teller stand buizen: 564 uur.

Specifications:

FREQUENCY RESPONSE

REF5: +0 -3dB 0.2Hz to 200kHz at rated output. (Balanced, 200k ohms load). REF55 SE: +0-3dB, 0.5Hz to 200kHz at rated output (Balanced, 200k ohms load).

DISTORTION (THD)

Less than .01% at 2V RMS Balanced output.

NOISE & HUM

1.7µV RMS residual IHF weighted balanced equivalent input noise with volume at 1 (109dB below 2V RMS output.)

GAIN

REF5: Main output: (SE or BAL input): 12dB Balanced output, 6dB Single Ended output. Tape output: 0dB. (Processor input: 0dB Balanced).

INPUT IMPEDANCE

120K ohms Balanced, 60K ohms SE

OUTPUT IMPEDANCE

600 ohms Balanced, 300 ohms SE main (2), 20K ohms minimum load and 2000pF maximum capacitance. 

OUTPUT POLARITY

Non-inverting

MAXIMUM INPUTS

20V RMS maximum Balanced, 10V RMS SE.

RATED OUTPUTS

2V RMS (1V RMS SE) into 200K ohm balanced load (maximum balanced output capability is 30V RMS at less than 0.5% THD at 1kHz).

POWER SUPPLIES

Electronically regulated low and high voltage supplies. Automatic 40 sec. warm-up/brown-out mute. Line regulation better than .01%.

TUBE COMPLEMENT

(4) 6H30P, plus (1 each) 6550C and 6H30P in power supply.

POWER REQUIREMENTS

100-135VAC 60Hz (200-270VAC 50/60Hz) 130 watts. Standby: 2 watts.

OTHER

Inputs (7): CD, TUNER, VIDEO, PHONO, AUX1, AUX2, PROCESSOR. (XLR and RCA connectors). Outputs (3): 2 main, 1 tape (XLR and RCA connectors). Crosstalk: -80dB or better at 1kHz and 10kHz. Controls: Volume (104 steps), Select Input. Push Buttons: Power, Proc, BAL/SE, Mono, Invert, Mute.

DIMENSIONS

19″ (48 cm) W x 7″ (17.8 cm) H (standard panel) x 15½” (39.4 cm) D. Handles extend 1½” (3.8 cm) forward of the front panel.

WEIGHT

30.4 lbs. (13.9 kg) Net; 41.6 lbs. (19 kg) Shipping.