Audio Research REF2MKII

REF2 MKII  

Audio Research Reference Two

High Definition Preamplifier

 

Available for sale is this 1st Gen Ref Two MK II Preamp. I rated it an 8 for age, but there are no known flaws visually, mechanically and sonically.

Inherited from original owner. A total Stereo / Audiophile that had the money and good sense to purchase new and have every repair and many upgrades performed direct by Audio Research factory. Unit probably has minimum hours on it before being re-boxed and stored away. Comes in original boxing.

Accepting  CC, bank wire, money order. If you meet my asking price I will include FEDEX shipping and insurance.

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"How advanced is the REF2MKII in sonic performance? It is as much an improvement as the LS25MKII was over its predecessor -- which is to say it is immediately audible and musically profound. Image focus, clarity and a sense of body are all heightened -- where by contrast the original version is simply less vivid overall. Dynamically, too, the MKII picks up the pace in a startling manner, making the rhythmic line and structure of any musical selection much more evident and understandable. The ebb and flow of a bass line, percussive textures, and time changes now make more musical sense as you hear them revealed by the greater immediacy and dynamic freedom of the REF2MKII. Finally, the MKII presents the music with a solidity and focus and coherence that is simply not present to the same degree in the original. From top to bottom, then, the REF2MKII is another advance of the state of the art in line-level pre-amplification."

SPECIFICATIONS:
FREQUENCY RESPONSE
REF2 MKII: +0 -3dB 0.2Hz to 60kHz at rated output. (Vol at -28dB, 200K ohms load).
DISTORTION (THD)
REF2 MKII: Less than .006% at 2V RMS Balanced output.
NOISE & HUM
REF2MKII: Main output (SE or BAL input): 18dB Balanced output, 12dB Single Ended output. Tape output: 0dB. (Processor input: 0dB Balanced. Aux 1 input: 13dB Balanced.)
INPUT IMPEDANCE
132K ohms Balanced, 66K ohms SE.
OUTPUT IMPEDANCE
400 ohms Balanced, 200 ohms SE main (2), 20K ohms minimum load and 2000pF maximum capacitance.
OUTPUT POLARITY
Non inverting
MAXIMUM INPUTS
14V RMS maximum Balanced, (7V RMS SE).
RATED OUTPUTS
REF2 MKII: 2V RMS (1V RMS SE) into 200K ohm balanced load (maximum balanced output capability is 40V RMS at less than 0.5% THD at 1kHz).
POWER SUPPLIES