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Phonostages — Fezz Audio Fezz Gaia MM/MC

Description, images, technical data and specifications

Fezz Audio Fezz Gaia MM/MC
Image source — © Fezz Audio

The Fezz Gaia MM/MC is a phono preamplifier from Fezz Audio, built with switchable gain for both moving-magnet and moving-coil cartridges. Fezz Audio is a Polish specialist manufacturer known primarily for tube-based electronics, and this phono stage extends that broader house engineering philosophy into a flexible, dual-cartridge-type unit.

Position in line

It sits below the Fezz Gaia Prestige in Fezz Audio's phono stage range, above the Fezz Gaia Mini MM/MC. This positioning between the entry Mini and the more elaborate Prestige suggests the standard Gaia MM/MC offers a sensible middle ground within the brand's phono catalogue.

Key specs that matter

One single-ended input is provided. MM impedance is 47 kOhm with 53 dB gain; MC impedance is 100 ohms with 60 dB gain. Distortion is under 0.15% for MM and under 0.008% for MC, a notably lower figure for moving-coil operation. At 5 kg it is a substantial unit for a phono stage, suggesting a serious power supply behind the tube-based circuitry.

Sound and use context

Expect a clean presentation for moving-coil cartridges given the low MC distortion figure, with MM operation carrying a higher distortion figure by comparison - a detail worth understanding before assuming universal excellence across both cartridge types, since the two paths clearly measure quite differently here.

Pairing

The switchable 47 kOhm MM and 100 ohm MC settings cover both cartridge types directly without a separate step-up device, a genuine practical convenience.

Alternatives

The Fezz Gaia Mini MM/MC sits below this model in Fezz Audio's range as a more compact alternative; the Fezz Gaia Prestige sits above it, worth the further investment if this model's already solid moving-coil performance still leaves ambitions for the brand's more elaborate phono stage. Fezz Audio broader tube-based catalogue reflects a design philosophy generally associated with a more overtly voiced, harmonically engaged character than a purely clinical solid-state phono stage, worth bearing in mind when comparing measured figures alone across brands. Tube replacement and periodic biasing should be factored into the long-term ownership costs of any design of this kind, unlike a solid-state alternative that typically needs no such maintenance. Overall this remains a capable choice for a listener specifically running a moving-coil cartridge.

Specifications

  • Model name

    Fezz Gaia MM/MC

  • Inputs (balanced)

    N/A

  • Inputs (single-ended)

    1

  • MC current-sensing input impedance (Ω)

    N/A

  • MM/MC voltage input impedance (Ω)

    MM: 47 000, MC: 100

  • Output impedance (Ω)

    N/A

  • Gain (dB)

    MM: 53, MC: 60

  • Playback EQ curves accuracy (dB)

    N/A

  • Frequency response low +/- 3dB (Hz)

    20

  • Frequency response high +/- 3dB (Hz)

    20 000

  • Total Harmonic Distortion + Noise (%)

    MM: <0,15, MC: < 0,008

  • Dimensions (mm)

    N/A

  • Weight (kg)

    5

  • Official link