The Tube Box S2 delivers a relaxed audio performance with lush mids in a full and enveloping sound stage, just like far more expensive pure-valve phono stages are capable of. Thanks to the built-in adjustable gain, capacitance, impedance and subsonic filter settings, it's possible to tune the device to perfectly complement almost any modern MM or MC cartridge. It's also possible to tune the sound further, as the Tube Box S2 is Pro-Ject's first ever product designed for the valves to be replaceable - allowing for tube rolling or sound shaping.

The new S2 casing is a big additional asset to the design, as not only does it deliver the highest visual appeal, but it is also sturdy enough to protect the internal circuitry against unwanted interferences and vibrations, which can cause unpleasant listening experiences. The Tube Box S2 also benefits from protective cages around the valves - inspired by the superior Tube Box DS2 design. Inspired by high-end designs but available for a very appealing price, the Tube Box S2 is a real audiophile bargain.

Technical Specifications:

Tubes: 2 x ECC83 (12AX 7A)
Input impedance: 10 ohms, 100 ohms, 1 kohm, 2 kohms
Input capacitance/impedance: 47pF, 147pF, 267pF, 367 pF, 487 pF and 587 pF* / 47 kohms, Together with other input impedance settings without any influence
Input gain: 40 dB, 43 dB / 50 dB, 60 dB und 63 dB
Noise floor: 80 dB (A weighted) at 40 dB input gain, 75dB (A weighted) at 50 dB and 63 dB input gain
THD: <0.02% at 40 dB input gain <0.05% at 50 dB and 63 dB input gain
RIAA-equalisation curve accuracy: +/- 0.4 dB/20 Hz - 20 kHz
Subsonic filter: @ 20 Hz with 18 dB/octave
Input: 1 pair RCA/phono sockets
Line-level output: 1 pair RCA/phono sockets
Outboard power supply: 18 V / 1.000 mA DC, suitable for your country's mains supply
Power consumption: 470 mA DC, <1W in standby
Dimensions (W x H x D) with sockets: 103mm x 73mm x 131 mm
Weight: 410 g without power supply

Collection: Phono Amplifiers

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Pro-Ject Tube Box S2 Phono Stage

Pro-Ject Tube Box S2 Phono Stage