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 제조사 AUDIO RESEARCH [ 오디오리서치 ] 모델명 REFERENCE 300MK II 상태 Used(중고) 가격











Specs:

Power output
280 watts continuous at 16 ohms from 20Hz to 20kHz with less than 1% total harmonic distortion (typically less than .05% at 1 watt). Typical power under average circumstances will be around 290 watts. Maximum power under ideal conditions will be around 300 watts.

Power bandwidth
(-3dB points) 12Hz to 100kHz

Frequency response
(-3dB points at 1 watt) 0.5Hz to 160 kHz

Input sensitivity
1.75V RMS balanced for rated output. (32dB gain into 16 ohms)

Input impedance
200K ohms balanced

Output taps
1, 2, 4, 8, 16 ohms

Output regulation
Approximately 0.8dB 16 ohm load to open circuit

Overall negative feedback
10 dB

Damping factor
11

Hum & noise
Less than 0.2mV RMS –110dB below rated output (IHF weighted, input shorted, 16 ohm output)

Power supply energy storage
448 joules

Power requirements
210–250VAC 50Hz 900 watts at rated output, 1200 watts maximum, 480 watts at idle, 280 watts standby

Tube complement

REFERENCE 300 MKII: (4 matched pairs) 6550C power output, (4) 6H30 triodes, (3) matched 6A57, (2) 6N1P.

Other

Dimensions
19" (48.3 cm) W x 10.5" (26.7 cm) H x (23.5" (59.7 cm) D. Handles extend 1.5" (3.8 cm) forward

Weight
132 lbs. (59.9 kg) Net; Shipped in pairs, 410 lbs. (186 kg) per pair