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Phonostages — Sugden Audio MASTERCLASS PA-4
Description, images, technical data and specifications
Sugden Audio MASTERCLASS PA-4
Image source — © Sugden Audio
The MASTERCLASS PA-4 is a phono stage from Sugden Audio, sitting above the A21SE STAGE TWO with comprehensive five-input connectivity. The MASTERCLASS PA-4 brings Sugden's considered engineering to a serious dedicated phono preamplification format.
Key specs that matter
Five single-ended inputs are provided. Frequency response spans a wide 10Hz to 30,000Hz within plus-or-minus 3dB - wider than the A21SE STAGE TWO's 20,000Hz. At 110 x 430 x 330mm and 6kg, the MASTERCLASS PA-4 represents a more substantial commitment than the A21SE STAGE TWO, reflecting Sugden's more accomplished current phono-stage engineering.
Sound and use context
Expect a dependable, considered phono-stage performance reflecting the wide 10Hz-30kHz bandwidth, consistent with Sugden's broader storied Class A engineering philosophy.
Pairing
Sugden's own MASTERCLASS LA-4 preamplifier offers a natural, matching pairing within the same broader MASTERCLASS catalogue.
Alternatives
Sugden's own A21SE STAGE TWO offers a more compact, accessible alternative within the same broader phono-stage catalogue.
Key specs that matter
Five single-ended inputs are provided. Frequency response spans a wide 10Hz to 30,000Hz within plus-or-minus 3dB - wider than the A21SE STAGE TWO's 20,000Hz. At 110 x 430 x 330mm and 6kg, the MASTERCLASS PA-4 represents a more substantial commitment than the A21SE STAGE TWO, reflecting Sugden's more accomplished current phono-stage engineering.
Sound and use context
Expect a dependable, considered phono-stage performance reflecting the wide 10Hz-30kHz bandwidth, consistent with Sugden's broader storied Class A engineering philosophy.
Pairing
Sugden's own MASTERCLASS LA-4 preamplifier offers a natural, matching pairing within the same broader MASTERCLASS catalogue.
Alternatives
Sugden's own A21SE STAGE TWO offers a more compact, accessible alternative within the same broader phono-stage catalogue.
Specifications
Model name
MASTERCLASS PA-4
Inputs (balanced)
N/A
Inputs (single-ended)
5
MC current-sensing input impedance (Ω)
N/A
MM/MC voltage input impedance (Ω)
N/A
Output impedance (Ω)
N/A
Gain (dB)
N/A
Playback EQ curves accuracy (dB)
N/A
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
30 000
Total Harmonic Distortion + Noise (%)
N/A
Dimensions (mm)
110 x 430 x 330
Weight (kg)
6
Official link
More components
Phonostages
Sugden Audio A21SE STAGE TWO