Pro-Ject TUBE BOX S2 - Black
Tube phono-preamplifier
Προενισχυτής λυχνίας phono
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Δίπλα σας από το 1976
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Καινοτόμος και μικρών διαστάσεων προενισχυτής phono με έξοδο λυχνίας και ήχο υψηλής πιστότητας !
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 customers many options to pick from and alter the sound signature to their preferences. 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.
Compatible upgrade power supply: Accu Box S2
- Suitable for MM and MC cartridges
- Precise RIAA equalisation in two stages passive and active
- Fully discrete circuit design without op-amps
- 2 x ECC83 tubes (replaceable)
- Front subsonic filter button
- Front gain control
- Ultra low noise circuitry with FET input stage
- Dual mono design for optimized channel separation
- Polystyrene capacitors used where possible
- Gold plated RCA inputs and outputs
- External power adaptor with multiple internal power supplies
- Well filtered high voltage anode power supply
- Sandwich aluminium metal casing protects from vibrations and electromagnetic interference
- Finishes silver or black
Tube assembly 2 x ECC83 (12AX7)
Input impedance 10 / 100 / 470 / 1k / 2k ohms fixed 47k ohms
Input capacitance 50 / 150 / 270 / 370 / 490 / 590 pF
Gain MM / MC 40 / 43 / 50 / 60 / 63 dB
Signal to noise ratio 77 dBA
Total harmonic distortion plus noise <0.0025%
RIAA curve accuracy ±0.4 dB (20 Hz – 20 kHz)
Subsonic filter 20 Hz at 12 dB per octave
Input / output 1 x RCA / 1 x RCA
Dimensions W x H x D 103 x 73 x 119 mm