“When everything settles and the mind calms, what’s left is music: vivid, beautiful, whole, and rendered with uncommon care. The Unison Reference amplifiers turn spending into savoring, and savor them I did.” —Rogier van Bakel, Stereophile
The first thing you notice about the Reference monoblocks are the tubes: four towering 845s in a half-circle surrounding and dwarfing the ECC82 and ECC83 in the middle. Even in a room full of gear, the 845s draw the eye. More than 7″ tall, 845s radiate heat, light, and old-world authority.
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Stereophile's Rogier van Bakel on the Unison Research Reference Monoblock Power Amplifier