Compact and discrete tube phono preamplifier.
100% discrete circuitry, no op-amps
2 replaceable ECC83 tubes → warm and customizable sound
Compatible with MM and MC cartridges
Precise two-stage RIAA equalization
Adjustable gain on the front panel
5 impedance settings + 47 kΩ fixed
Switchable subsonic filter
Dual-mono design and low-noise FET circuitry
If you make the payment via bank transfer, you will receive an extra 3% discount on your order.
Would you be interested in trading in a device when purchasing this item?
The Tube Box S2 is a compact and innovative phono preamplifier that blends the charm of tube sound with advanced engineering in a miniature format. It is Pro-Ject’s first model to feature 100% discrete circuitry with no operational amplifiers, and the first to include replaceable ECC83 tubes, allowing users to tailor the sonic signature to their personal taste.
Its sound character delivers warm mids, silky highs, and relaxed musicality, comparable to high-end tube phono stages but in a far more compact and affordable chassis. Compatible with both MM and MC cartridges, it offers multiple front-panel gain settings, five input impedance options, and a switchable subsonic filter, ensuring perfect adaptation to any phono cartridge.
The aluminum/metal sandwich chassis not only matches the DS2 series aesthetic but also provides effective shielding against vibrations and electromagnetic interference.
Compatible with MM and MC cartridges.
Fully discrete circuitry, no op-amps.
2 replaceable ECC83 tubes for customizable timbre.
Accurate RIAA equalization in two stages (passive/active).
Adjustable gain via front panel.
5 input impedance settings + fixed 47 kΩ.
Switchable subsonic filter on the front panel.
Dual mono design for maximum channel separation.
Ultra-low-noise FET circuitry.
Polystyrene capacitors in critical signal paths.
Gold-plated RCA input and output connectors.
Rigid metal chassis with electromagnetic shielding.
Available finishes: black or silver.
