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Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The Pro-Ject Phono Box RS is a high-end phono preamplifier for MM and MC cartridges, featuring adjustable gain and exceptionally flexible loading. MC input impedance is continuously adjustable from 10 to 1,200 ohms, while MM and high-output MC cartridges can use selectable 100, 200, 300, 420, or 520 pF capacitance settings at 47 kOhms. It provides selectable passive RIAA and DECCA equalization, balanced XLR and unbalanced RCA connections, a 20 Hz subsonic filter with a 12 dB/octave slope, and a shielded metal chassis. Gain is selectable, with RCA settings of 40, 50, and 60 dB and XLR settings of 46, 56, and 66 dB. The unit uses a discrete, symmetrical circuit design and is specified with a signal-to-noise ratio of up to 91 dB A-weighted.
Analog signal output specifications
Phono stage specifications
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Components that show up alongside the Phono Box RS in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The MX-VYNL's signal-to-noise is 101 dB against the Phono Box RS's 80 dB, its mm gain 42 dB against 40 dB, its thd 0.007% against 0.019%, and its mc gain 57 dB against 46 dB.
Both turn up in the same documented systems.
The R15's signal-to-noise is 83 dB against the Phono Box RS's 80 dB, its thd 0.020% against 0.019%, and its mc gain 60 dB against 46 dB. Both share mm gain (40 dB).
The Tube Box DS3 B's signal-to-noise is 87 dB against the Phono Box RS's 80 dB, its thd 0.030% against 0.019%, and its weight 1.56 kg (3 lbs) against 2 kg (4 lbs). Both share mm gain (40 dB).
The Tube Box DS2's signal-to-noise is 88 dB against the Phono Box RS's 80 dB, its thd 0.040% against 0.019%, and its mc gain 65 dB against 46 dB. Both share mm gain (40 dB).
Both turn up in the same documented systems.
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