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Phonostages — Rega AOS MC

Description, images, technical data and specifications

Rega AOS MC
Image source — © Rega

The AOS MC is a phono stage from Rega, built specifically for moving-coil cartridges with a flexible stepped loading selection. The AOS MC brings Rega's considered engineering to dedicated MC phono preamplification.

Key specs that matter

One single-ended input is provided. MC current-sensing input impedance offers stepped selection at 70, 100, 150, or 400 ohms. Gain is 69.3dB at Setting I or 63.5dB at Setting II - a substantial gain range suited to low-output moving-coil cartridges. Frequency response spans 17.5Hz to 100,000Hz within plus-or-minus 3dB. Total harmonic distortion plus noise is 0.03%. At 220 x 80 x 330mm and 2.9kg, the AOS MC maintains a manageable, dedicated MC phono-stage chassis.

Sound and use context

Expect a clean, dependable phono-stage performance reflecting the substantial 69.3dB maximum gain, suited specifically to low-output moving-coil cartridges requiring high gain.

Pairing

The stepped 70-400-ohm MC loading selection accommodates a range of moving-coil cartridges precisely.

Alternatives

Rega's own AURA MC offers a related model with an even wider loading range within the same broader MC phono-stage catalogue.

Specifications

  • Model name

    AOS MC

  • Inputs (balanced)

    N/A

  • Inputs (single-ended)

    1

  • MC current-sensing input impedance (Ω)

    70, 100, 150, & 400

  • MM/MC voltage input impedance (Ω)

    N/A

  • Output impedance (Ω)

    N/A

  • Gain (dB)

    69.3 dB (Gain Setting I), 63.5 dB (Gain Setting II)

  • Playback EQ curves accuracy (dB)

    N/A

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

    17.5

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

    100 000

  • Total Harmonic Distortion + Noise (%)

    0.03%

  • Dimensions (mm)

    220 x 80 x 330

  • Weight (kg)

    2.9

  • Official link

    https://www.rega.co.uk/products/aos-mc

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