Check the listing for details. Pro-Ject Tube Box S2 Tube Phono-Preamplifier MM/MC. Condition: New. Listed at 477.93 USD. LSV Cables Welcome to LSV-Cables! FeedBack MAILING LIST fAVORITES EASY & SECURE PAYMENTS Your Privacy will be secured Toggle navigation Menu Home About us our Products PaymentS Shipping returns Contact Us PRODUCT DESCRIPTION Pro-Ject Tube Box S2Brand New with a full 2 years warranty. 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 Available in: FeaturesSuitable for MM and MC cartridgesPrecise RIAA equalisation in two parts, passive/activeFully discreet circuit design without OpAmps2x ECC83 tubes (replaceable)Front-sided Subsonic filter buttonFront-sided Gain controlUltra low noise circuitry with FET input stageDual mono circuitry for optimised channel separationPolystyrene capacitors used where possibleGold-plated RCA in- and outputsExternal power adaptor and multiple internal power suppliesWell-filtrated high-voltage anode power supplySandwich alu/metal casing protects from vibrations and electromagnetic interferenceAvailable in silver or black Tube Box S2Tubes2 x ECC83 (12AX 7A)Input impedance10 ohms, 100 ohms, 1 kohm, 2 kohmsInput capacitance/impedance47pF, 147pF, 267pF, 367 pF, 487 pF and 587 pF* / 47 kohms, Together with other input impedance settings without any influence!Input gain40 dB, 43 dB / 50 dB, 60 dB und 63 dBNoise floor80 dB (A weighted) at 40 dB input gain, 75dB (A weighted) at 50 dB and 63 dB input gainTHD