Norman Audio

Ayre Acoustics K-5xeMP Preamplifier

“The Ayre K-5x is a killer preamp…” – Shane Buettner, The Audio Perfectionist

“I was impressed by Ayre Acoustics’ K-5xeMP. For what is these days a relatively affordable price, it offers much of the sound quality you can get from the megabucks solid-state preamps. While the original K-5xe was a solid Class B recommendation in Stereophile’s “Recommended Components,” this Maximum Performance version deserves a full Class A rating.” – John Atkinson (Stereophile), 2011

Ayre’s K-5xeMP preamplifier combines peerless musical performance with stunning visual design. The exclusive fully-balanced,  zero-feedback circuitry renders music with vitality and life. Its custom-designed volume control is actuated by a silky smooth optical encoder, using FET switches and precision metal-film resistors to deliver absolute sonic transparency. The massive power transformer effortlessly provides startlingly real musical dynamics. The K-5xeMP will transport you to a new world of musical enjoyment.

Features

  • zero-feedback, fully-balanced discrete circuitry
  • 66 step volume control, each of 1.0 dB
  • Four inputs: two balanced, two single-ended
  • Proprietary volume control with FET switches & metal film resistors
  • Ayre Conditioner Power-Line RFI Filter
  • Control microprocessor is turned off except when executing a command
  • Input selector also switches ground connection, so that all source components are completely disconnected except for the one selected
  • “Theater” mode for use with surround-sound processor is assignable to any input, allowing use with balanced or single-ended processors

Specification

Input Impedance20 KΩ (per phase)
Output Impedance55 Ω (per phase)
Frequency ResponseDC – 200 kHz
Maximum Gain4 dB – unbalanced outputs
10 dB – balanced outputs
Maximum Input Level4 Vrms – unbalanced inputs
8 Vrms – balanced inputs
Power Consumption10 watts
Dimensions17.25″ W x 13.75″ D x 4.75″ H
(43.8cm x 35cm x 12cm)
Weight25 pounds (11.5 kg)

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