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By Unison Research

Unison Research - Reference Pre - Tube Preamplifier

Authorized Dealer • Full Manufacturer Warranty

$24,999.00
$24,999.00
Shipping calculated at checkout.
Color: Cherry

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Availability can vary by model and finish. We’ll personally confirm shipping timing within one business day and reach out if anything is back-ordered.

$24,999.00
$24,999.00

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After we completed the design of our flagship Reference monoblock power amplifiers, we created a need for a preamplifier with the same features and sound quality. We came up with a preamplifier design worthy of that series, the Reference PRE. Made with the care and attention detail that characterizes all products from Unison Research, the Reference PRE preamplifier is truly another milestone in audio reproduction.

Type: tube preamplifier, dual mono, two  chassis

Valves: 2 x 300B, 2 x ECC82, 4 x ECC83, 6 x 6C45P

Phono Valves: 4 x 6C45P, 2 x ECC83

Class: pure class A

Inputs: 4 RCA, 2 XLR, 1 tape, 2 independent phono

Output: 1 RCA, 1 XLR, 1 tape ( active ), 1 sub woofer (active ), Power-on link for REFERENCE Power

Output impedance : 500 ohm

Input impedance : 47 kOhm

Input impedance for Phono: Selectable resistance and capacitance

Gain: 45 – 55 dB

RIAA: passive ± 0.2 dB

F.R. : 10Hz – > 100KHz @ – 0.3dB

Negative Feedback: 15 dB line, 0 db Phono

Distortion: 0.1%

Power consumption : 320 W max

Dimensions: 45 cm x 56 cm x H 22 cm

Net Weight: 30 Kg / 66 lb

Authorized Dealer

Eardrum Audio is an authorized retailer for the brands we sell. That means your purchase includes the full manufacturer’s warranty, factory support, and official after-sales service — exactly as intended by the manufacturer.

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