Pro-Ject Tube Box S2 Series Phono Preamplifier Black
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.
TECHNICAL SPECIFICATIONS
Tube assembly
2x ECC83 (12AX7)
Input impedance
variable 10-1000 Ohms, fix 47 k
OhmsCapacitance 100 / 220 / 320 pFGain MM / MC 40 / 45 / 50 / 60 / 65 dB
Output voltage
typically 500 mV/1kHz at 5mV/1kHz (at 40dB)
Signal-to-noise ratio
88dBA
THD < .04%
RIAA curve accuracy
+/- .2dB/20Hz - 20kHz
Subsonic filter
20Hz @ 12dB/octave
Input / Output
2x RCA
Power supply
18V/1000mA
DC Power consumption
max 490mA DC / < .5 watt standby
Dimensions WHD
8.11 x 3.58 x 8.94 in (Black/Silver)
9.45 x 3.66 x 8.94 in (Wood)
Weight (without power supply)
3.64 lb (Black/Silver)
4.25 lb (Wood)
Full 2 year P&L Manufacturer's Warranty
