Primo | Pre Amplifier (DISCONTINUED)

The Primo is a is the best pre-amplifier we’ve ever made.

Primo Front Panel
Primo Rear Panel
Primo Extra Image

Primo (DISCONTINUED) - Overview

A bold but true statement: the Primo is the best pre-amplifier we’ve ever made.

The result of 12 years of research and development here at Musical Fidelity, the Primo produces superlative sound, is beautifully built and is extremely reliable.

It’s a reference-standard tube design: from the glow of its hand-selected, long-life tubes to its British-built solidity and exquisite pure Class A performance.

As Michael Fremer wrote in his Stereophile review: “The Primo elicited from me an immediate and enormous "Wow!" that I still felt even after weeks of listening.”

Regardless of volume level, the Primo delivers exceptional, consistent results, due to its total system linearity. It seamlessly makes the most of just about any hi-fi source – via its array of line-level and balanced connections – and perfectly partners with its sibling AMS power amps.

The Primo is a truly extraordinary pre-amp - if you want to recapture the magic of music, it has to be heard.

Primo (DISCONTINUED) - Specifications


  • Max output voltage: 32V
  • Output impedance: 600ohms
  • THD(+ noise): <0.0035% typical
  • Signal to Noise Ratio: >119dB
  • Frequency Response: +0, –0.1dB, 10Hz to 20kHz


  • 5x RCA Phono Line Level
  • 5x Line level XLR Balanced


  • 1x RCA Phono Line Level
  • 1x Line level XLR Balanced


  • Dimensions - WxHxD (mm): 483 x 150 x 410
  • Weight (unpacked / packed): 16.8 kg / 22 kg

Primo (DISCONTINUED) - Downloads

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