PRODUCT INFORMATION
TUBE BOX S2
Tube phono-preamplier
MSRP 359
• 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 lter 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-ltrated high-voltage anode power supply
• Sandwich alu/metal casing protects from vibrations
and electromagnetic interference
• Finishes: silver or black
€ (incl. VAT)
colour options:
Tube assembly: 2x ECC83 (12AX7)
Input impedance: 10/100/470/1k/2k ohms, x 47k ohms
Capacitance: 50 / 150 / 270 / 370 / 490 / 590 pF
Gain MM / MC: 40 / 43 / 50 / 60 / 63 dB
Signal-to-noise ratio: 77dBA
THD+N: < 0,0025%
RIAA curve accuracy: +/- 0,4dB/20Hz - 20kHz
Subsonic lter: 20Hz @ 12dB/octave
Input / Output: 1x RCA / 1x RCA
Dimensions WxHxD: 103 x 73 x 119 mm
PRO-JECT AUDIO SYSTEMS
www.project-audio.com
Technical data and price changes reserved.
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Innovative miniature sized phono
preamplier with tube output and high
end sound!
Tube Box S2 is our very rst product to feature a
fully discreet circuit design without using any
operational ampliers (OpAmps). It also is the rst
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-amplier. It oers
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 xed and suited for high output MC
cartridges. The aluminium/metal casing is adapted to
PRODUCT INFORMATION
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!
PRO-JECT AUDIO SYSTEMS
www.project-audio.com
Technical data and price changes reserved.
Page 2/2