We are pleased to offer another Reference Classic,
The Audio Research REFERENCE 2 Balanced (2) Channel vacuum tube Line Stage
Gently used One original owner, beautifully cared for by a long time 2 channel Audiophile client of ours Smoke-free, pet-free environment
There are not enough superlatives to describe the performance of the Ref 2.
This is what one reviewer had to say, to sum it all up...performance above the bass was also subtly more vivid, warm, and harmonically enriched than the incoming signal, but only slightly so: full bloom, no stem rot. The result was a coherent, fertile, BIG picture—
...Dynamics at both ends of the scale were among the best I've heard, rivaled only by the Sharp SM-SX100 digital amplifier: explosive at the loud end, nuanced and capable of revealing fine gradations below. The Ref 2 never unraveled on orchestral crescendos, maintaining spatial and tonal integrity. Its rendering of small-scaled, delicate dynamic movement gave life to some recordings that previously had seemed to fade into a glaze as the musical detail descended in level. The Reference Two delivered this sensation of living music even at relatively low volume levels.
Read more at http://www.stereophile.com/content/audio-research-reference-two-preamplifier-page-2#z386FcqwuRRBIQPG.99
PLEASE SEE ATTACHED PICTURES
NEVER REPAIRED NEVER MODIFIED
(8) Line Level Inputs (Balanced (XLR) and Single-Ended (RCA)
(1) Record Output (Same as above) No built-in PHONO stage
(2) Main Outs (Same as above)
Tube complement: eight 6922 dual-triodes
Power supply, (1) 5AR4 (1) 6L6GC (1) 6922.
Voltage Gain: 18dB balanced, 12dB single-ended.
Frequency response: 0.5Hz-60kHz, +0/-3dB at rated output.
Hum and noise: 20µV RMS residual IHF-weighted noise output with gain control set to its minimum (100dB below 2V RMS balanced output, 97dB below 1V RMS SE output).
Distortion: <0.015% at 2V RMS balanced output.
Output impedance: 400 ohms balanced, 200 ohms single-ended.
Recommended load: 20k ohms minimum resistance and 2nF maximum capacitance.
Input impedance: 132k ohms balanced, 66k ohms single-ended.
Dimensions: 19" W by 7" H by 15.5" D.
Weight: 31 lbs.