Pro-Ject Introduces Two Affordable Tube Phono Preamplifiers
By HiFi Editorial8 February 2026
Key Highlights
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.
