Pro-Ject Tube Box S2 Phono Preamplifier bookshelf speaker With an integrated lock that

With an integrated lock that secures both drawers

and optimize performance

there’s something for everyone

a coax and optical output are also available if you prefer to send the digital audio signal to an external DAC

Pro-Ject Tube Box S2 Phono Preamplifier bookshelf speaker With an integrated lock thatTube Box S2 uses fully discrete circuitry no operational amplifiers here (aka Op Amps, used in simpler, more affordable designs but with some sacrifice to sound quality). Its a hybrid design utilizing tubes in the input & gain stages. The standard, user replaceable tubes sound stellar out of the box, though the design opens the gates for sound shaping via tube rolling should you want to take it a step further. Tube Box S2s sonic presentation is full &