Tube Box E

The Pro-Ject Tube Box S3 B features balanced circuitry, a 5-pin Mini-XLR input, XLR outputs, and a dual-mono layout for optimal vinyl audio quality.

With adjustable gain from 40 to 65 dB, the Tube Box S3 B supports both MM and MC cartridges, including low-output variants.

The Pro-Ject Tube Box E is a compact entry-level preamp with active/passive RIAA equalization and swappable ECC83 tubes for customizable audio tonality.

Pro-Ject introduces two new tubed phono preamps: Tube Box S3 B and Tube Box E, enhancing their analog audio lineup.

The Tube Box S3 B features balanced, dual mono circuitry with adjustable settings, XLR outputs, and a subsonic filter.

The Tube Box E offers cost-effective options with RCA connections, aluminum faceplate, and accessible gain and loading settings.

Pro-Ject introduces two innovative entry-level tube-loaded phono stages: the Tube Box E and Tube Box S3 B.*

The Tube Box E features replaceable ECC83 tubes, dual mono circuitry, and discrete components, offering up to 63dB gain for €299.*

The Tube Box S3 B provides 65dB gain, fully symmetric discrete gain stage, balanced XLR connections, and memory settings for €599.*