Pro-Ject Tube Box E Phono Preamplifier

Pro-Ject Tube Box E Phono Preamplifier with Fully Discrete Dual Mono Circuitry

The Tube Box E is an innovative miniature sized phono preamplifier with a tube output! Tube Box E finally enrichens Pro-Ject’s E-line with the latest in their highly popular range of tube phono preamplifiers.

Fully Discrete Phono Amp

It features a fully discrete circuit design without using any operational amplifiers (OpAmps). This results not only in fantastic low noise phono amplification with clean measurements and accurate RIAA equalisation, but also ensures a long product life-cycle as maintenance, service and repair are ensured for years and years to come. It also comes with replaceable tubes for tube rolling and sound-shaping. This gives the customer many options to pick from and alter the sound signature to their preference. Tube Box E will give a full and relaxed laid back sound with lush mids, just like you would expect it from a much bigger high-end tube phono preamplifier.

Precise Loading for MM & MC

It offers support for both Moving Magnet and Moving Coil cartridges and comes with many gain settings with switching conveniently located on the front panel. Wide ranging loading options can be adjusted on the bottom of the unit allowing you to precision match your Tube Box E to your cartridge!

The enclosure is fully made out of metal to protect it effectively against electromagnetic interference and vibrations, which can cause unpleasant listening experiences. The front panel and control elements are made out of beautifully machined aluminium.

Our Review

The Pro-Ject Tube Box E is a delightfully compact phono preamp that brings a touch of high-end, tube-powered magic to even modest vinyl setups, offering a surprisingly lush and laid-back sound that feels far bigger than its tiny footprint. Its fully discrete, OpAmp-free circuit design keeps noise impressively low and RIAA accuracy spot-on, while the twin ECC83 tubes invite you to experiment with tube rolling to shape the sound exactly to your taste. With support for both MM and MC cartridges, front-panel gain and subsonic controls, and precise loading options tucked neatly underneath, it’s as practical as it is musical. Wrapped in a solid metal enclosure with beautifully machined aluminium accents and gold-plated connections, the Tube Box E blends smart engineering with a smooth, easy going listening experience that punches well above its class.