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Used Audio Research REF 300 Monoblock power amplifiers for ...
https://www.hifishark.com/model/audio-research-ref-300
Audio Research Model Reference 300 Monoblock Power Amplifiers (MK1) Canuck Audio Mart CA$8,990 Apr 19, 2020. - Apr 25, 2020. HiFi Occasion. Audio research Ref 300 HiFi Occasion €8,000 Oct 24, 2019. - Jan 31, 2020. Audiogon. Audio Research Reference 300 MKII Tube Amps Audiogon $8,000 20% Oct 5, 2019. - Oct 22, 2019. US Audio Mart.
ARCDB
https://arcdb.ws/REF300/REF300.html
The REFERENCE 300 as supplied from Audio Research is equipped with Russian 6550C, which is our current choice for reliability and long service. REFERENCE 300 MKII: (4 matched pairs) 6550C power output, (4) 6H30 triodes, (3) matched 6A57, (2) 6N1P. Dimensions 19" (48.3 cm) W x 10½" (26.7 cm) H x 23½" (59.7 cm) D. Handles extend 1½" (3.8 cm) forward
Audio Research Reference 300 Monaural Power Amplifier ...
https://www.hifiengine.com/manual_library/audio-research/reference-300.shtml
Dimensions: 483 x 267 x 597mm. Weight: 59.9kg. Year: 1999. Power output: 280 watts into 16Ω (mono) Frequency response: 0.5Hz to 160kHz. Total harmonic distortion: 1%. Damping factor: 11. Gain: 32 dB. Input sensitivity: 1.75V.
Audio Research M300 monoblock power ... - …
https://www.stereophile.com/tubepoweramps/585/index.html
Audio Research M300 monoblock power amplifier. Martin Colloms, J. Gordon Holt | Dec 26, 1995 | First Published: Dec 26, 1987. JGH opens. After having proven that vacuum tubes could do some sonic things better than transistors, Audio Research is now endeavoring to show that transistors can do most things better than tubes—at least in the front end of a power …
Audio Research Reference 300 MKII Tube Amps | Tube | Audiogon
https://www.audiogon.com/listings/lis9hc0d-audio-research-reference-300-tube
Audio Research Reference 300 MKII Tube Amps [Expired] Set of Audio Research Reference 300 Vacuum Tube Amplifiers. Both amps we're given a complete check up, tube replacement and tuning at Audio Research last year ($4.6K service). Specs here: http://www.arcdb.ws/REF300/REF300.html.
KT120 tubes in AudioResearch ref 300 MK2 - High-End Audio ...
https://forum.audiogon.com/discussions/kt120-tubes-in-audioresearch-ref-300-mk2
That's a shame, but better you asked first. If you ever change out the Ref 300 mkII for another ARC Ref amp, e.g., the new Ref 250, the KT-120s come standard. In any case, I'm sure the Ref 300 sounds great. I hope you continue to enjoy it for years to come.
Audio Research M300 Tube Monoblock Amplifiers - 300W ...
https://skyfiaudio.com/products/audio-research-m300-tube-monoblock-amplifiers-300w
Audio Research M300 Tube Monoblock Amplifiers - 300W! $0. Serious 300W monoblocks featuring auto bias, so you never have to calibrate or fuss over the tubes. Perfect for driving a difficult load like ribbon or planar speakers. So rare we …
Audio Research – High-end audio equipment
https://audioresearch.com/
Audio Research has produced some of the finest components for music reproduction; this is especially true with regard to preamplifiers. In 1973, the SP3 was hailed as the best preamplifier available, and this tradition of excellence has continued ever since. The Reference Series from Audio Research was first introduced in 1995 and has been the ...
AUDIO RESEARCH REFERENCE 300 MK1 MONO TUBE AMPS ...
https://www.audiogon.com/listings/tube-audio-research-reference-300-mk1-mono-tube-amps-magnificent-excellent-condition-2014-04-24-amplifiers-91723-covina-ca
Thanks to the built-in features of the 300’s – you can perfectly individually bias each output tube from controls on the front panel. This pair of REF 300’s was built in 1999 and have had one original owner who happened to be a former hifi store owner. In 1999 they sold for $24,000.00. This pair has consecutive serial numbers: 39401501 & 02.
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