A true high end solution in a much smaller package!
Unlike conventional phono stages, the Tube Box S2 harks back to a classic era of analogue sound, using a pair of valves to amplify your turntable’s signal.
This alternative approach gives your sound a remarkably different feel, with outstanding warmth and a lush, laid-back sound that other phono stages just can’t touch.
A pint-sized performer
With a host of settings, the Pro-Ject Tube Box S2 works with both Moving Coil and Moving Magnet cartridges to make you fall in love with your records all over again.
The Pro-Ject Tube Box S2 offers all this in a compact form-factor that’s small enough to fit in the palm of your hand. Good things truly do come in small packages.
Tube Box S2 is our very first product to feature a fully discreet circuit design without using any operational amplifiers (OpAmps). It also is the first product to come with replaceable tubes for tube rolling and sound-shaping. This gives the customer many options to pick from and alter the sound signature to his preference. Tube Box S2 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 pre-amplifier.
It offers support for both MM and MC cartridges and comes with many gain settings to be switched on the front panel. Five variable input impedance settings are available to adjust to any MM cartridge, the 47k ohms input impedance setting is fixed and suited for high output MC cartridges. The aluminium/metal casing is adapted to our DS2 line in looks and protects against vibrations and electromagnetic interferences for superior sound.
- Suitable for MM and MC cartridges
- Precise RIAA equalisation in two parts, passive/active
- Fully discreet circuit design without OpAmps
- 2x ECC83 tubes (replaceable)
- Front-sided Subsonic filter button
- Front-sided Gain control
- Ultra low noise circuitry with FET input stage
- Dual mono circuitry for optimized channel separation
- Polystyrene capacitors used where possible
- Gold-plated RCA in- and outputs
- External power adaptor and multiple internal power supplies
- Well-filtrated high-voltage anode power supply
- Sandwich alu/metal casing protects from vibrations and electromagnetic interference
- Available in silver or black
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 at 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
Power consumption 470 mA DC, <1W in standby
Dimensions W x H x D with sockets 103 x 73 x 131 mm
Weight 410 g without power supply
Pro-Ject Audio has been reviving music since 1990. After the fall of the Berlin Wall, when factories were closing in droves, founder Heinz Lichtenegger bought a turntable factory in the small Czech town of Litovel. Retaining the experienced staff and re-imagining classic turntable designs, we went to work constructing low cost, design-oriented turntables that would help people rediscover music the way it should be.
We're still working with the same staff out of the same small factory in Litovel. We've kept revising our low cost options for the easiest use, best sound and cleanest finish. But we also build midrange and high end turntables... and a whole lot more.
We don't expect you to believe everything we say. You've got no reason to trust us, so don't. Look up reviews and ask your friends. We're talked about and reviewed positively, and for good reason. Whether you're after a cheap and easy 'table, a high end award winner or quality hi-fi equipment, you'll keep coming across one name. That's Pro-Ject Audio Systems.
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