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Reference 6 Line
Stage Preamplifier
The Legacy Continues
“The Reference 6 has an incredibly addictive lifelike presence and bloom
that will draw you in and dazzle your senses. There is so much harmonic
texture and rich layers of information that you will have to pinch yourself to
remember that you are in a listening room and not the original event. Female
vocals, saxophone, piano—it does not get any better or more seductive!”
Posi+iveFeedback, September 2016
The Reference 6 is our finest single chassis line stage preamplifier for good reason. Utilizing circuit and power
supply elements derived from our two-chassis flagship, the REF6 squeezes as much quality and technology
into a single chassis component as possible.
The REF6 provides a new sonic landscape. Increasing the tube count with advancements in the power supply,
improve both micro- and macro-dynamics while lowering distortion. The refined design delivers a relaxed
and effortless musical presentation with great transparency and speed. The power supply provides great bass
weight and control. Quite simply, the REF6 delivers a more palpable and immediate musical performance.
The REF6’s four single-ended RCA inputs and four balanced XLR inputs assure connectivity with virtually every
source. Two sets of RCA and XLR outputs allow easy integration with multiple power amplifiers or powered
subwoofers. We’ve even included a pair of fixed level outputs for those using a tape recorder or analog-todigital converter. No matter how extensive your audio system is, the REF6 has you covered.
The proof is in the listening. “The Reference 6 managed an exceptional combination of overall perfection
of timing, in which everything arrived at the right time, and lingered just long enough before gracefully
evaporating. It also managed to reproduce unerringly convincing harmonic structures that produced lush, true
colors and solid, three-dimensional images.” Michael Fremer, Stereophile, November 2016.
After nearly 50 years, our focus remains the advancement of the state-of-the-art in music reproduction. Every
component is meticulously hand-crafted and personally auditioned before it leaves our factory. Our attention
to detail, customer service, and product support create unprecedented value. An Audio Research component
is more than a purchase, it’s an investment.
When you experience the musical presentation of the REF6, you’ll see for yourself how mere technical
specifications don’t tell the entire story. This is audio fine art. We invite you hear the difference by visiting your
nearest Audio Research dealer.
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Complete technical specifications can be found on our website.
S P E C I F I C A T I O N S
Frequency response
+0-3dB, 0.4Hz to 200kHz at rated output
(Balanced, 200k ohms load)
THD
Less than .01% at 2V RMS BAL output
Gain
Main output: 12dB Balanced output, 6dB SE
output. Record out: 0dB (Processor input: 0dB BAL
output)
Noise
1.7uV RMS residual IHF weighted balanced
equivalent input noise with volume at 1 (109dB
below 2V RMS output.)
Tube complement
6 - 6H30 dual triodes, plus 1 - 6550WE and
1 - 6H30 in power supply
Dimensions
Width:19” (48 cm)
Height:7.8” (19.8 cm)
Depth: 16.5” (41.9 cm)
Handles extend 1.6” (4 cm) forward of the front
panel
Weight
37.5 lbs. (17 kg) Net; 49 lbs. (22.3 kg) Shipping
3900 Annapolis Lane North | Plymouth, MN 55447 USA | T: 763.577.9700 | www.audioresearch.com
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