Preamplifiers — Pro-Ject Pre Box RS2 Digital

The Pre Box RS2 Digital is a preamplifier from Pro-Ject, built with a distinctive selectable solid-state or tube output stage matching the DAC Box RS2's design philosophy. The Pre Box RS2 Digital brings Pro-Ject's considered engineering to dedicated line-level signal control.

Key specs that matter

One balanced and one single-ended input are provided. Input impedance is 15,000 ohms on both connections. Output impedance is a distinctive selectable 180 ohms in solid-state mode or 220 ohms in tube mode - letting the listener choose between two output-stage characters. Total harmonic distortion plus noise is under an exceptionally low 0.006%. At 206 x 72 x 222mm and 1.710kg, the Pre Box RS2 Digital maintains a space-efficient preamplifier chassis.

Sound and use context

Expect exceptionally clean signal handling reflecting the near-immeasurable sub-0.006% distortion figure, with the distinctive selectable solid-state/tube output stage letting the listener choose between a more neutral or a warmer, tube-informed character.

Pairing

The selectable solid-state/tube output stage lets the listener match the preamplifier's character to their downstream power amplifier and personal taste, and Pro-Ject's own Amp Box RS2 offers a natural, brand-coherent pairing.

Alternatives

Pro-Ject's own Pre Box S2 Analogue offers a more accessible, purely analogue alternative within the same broader preamplifier catalogue.