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Pro-Ject Tube Box S2

Sold out
£325.00

Tube phono-preamplifier

Not available until 2021 - consider the Tube Box S or the Tube Box DS2

Innovative miniature sized phono preamplifier with tube output and high end sound!

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 ohm 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.

A true high end solution in a much smaller package!

 

Features

  • 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

 

 

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 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, suitable for your country's mains supply
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

We use DHL for domestic and international orders by default.

For orders over £150.00, delivery in the UK is FREE.

For all other orders below £150.00, shipping charges are based on weight and/or item size. 

Local collection is available (please contact us to check availability and to book your collection slot) from our demo room.

Certain product(s) are not stock items. Where items are special order - you'll receive your package the next day from when stock arrives. We'll let you know the rough ETA on placing your order but please do contact us if your order is urgent.

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