Warm vacuum-tube sound for your beloved vinylThe Pro-Ject Tube Box S2 offers the warm, natural, expansive sound that vacuum tube preamps are famous for. Not coincidentally, thats exactly the sound I want when I listen to my favorite records. And tube preamps like this one are excellent at eliminating unwanted noise, so you hear only the music.This versatile preamp features adjustable input capacitance settings for moving magnet and high-output moving coil cartridges, plus gain-setting options to better match your cartridge to your system. A switchable subsonic filter protects your amplifier and speakers from power-wasting low-frequency rumble below 20 Hz.Power supply included - for US 110v outlet. Can be used outside of US with adapters. Product highlights:dual-mono design using two dual-triode ECC83 (12AX7A) vacuum tubes for optimal channel separationcompatible with moving magnet and moving coil phono cartridgesfront-panel selectable amplifier gain (40, 43, 50, 53, 60 or 63dB)adjustable input capacitance and impedance via dip switches on bottom of unitimpedance settings: 10, 100, 1k, 2k ohmsfixed 47k ohm input impedance setting for high-output MC cartridgescapacitance settings: 147, 267, 367, 487, 587 pFsubsonic filter reduces low-frequency rumble and wasted amplifier power (-18dB/octave at 20 Hz)audiophile-grade polypropylene capacitorsaluminum/metal sandwich chassis for improved shielding from vibration and electromagnetic interferencegold-plated RCA stereo input and output pairsRIAA response accuracy: 0.4dB (20-20,000 Hz)THD: less than 0.05%5-3/16W x 4-11/16H x 4-1/16Dweight: 14.4 oz.

PRO-JECT TUBE BOX S2Vacuum tube phono stage Comes with the original power adapter with UK and euro ends, the original pair of matched ECC83 tubes, box and all paperwork. Physical condition is excellent please see photos Selling due to personal preference for solid state, however still an excellent phono stage for tube fans. The tubes have around 50 hours (ballpark) of use, they still have heaps of life left in them but can also be easily rolled to your liking. Suitable for both MM and MC carts with dip switches on the bottom and front panel buttons for various capacitance and gain settings. Spec copied from Pro-Ject website:Tubes2 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<0.02% at 40 dB input gain <0.05% at 50 dB and 63 dB input gainRIAA-equalisation curve accuracy+/- 0.4 dB/20 Hz - 20 kHzSubsonic filterat 20 Hz with 18 dB/octaveInput1 pair RCA/phono socketsLine-level output1 pair RCA/phono socketsOutboard power supply18 V / 1.000 mA DC, suitable for your countrys mains supplyPower consumption470 mA DC, <1W in standbyDimensions W x H x D with sockets103 x 73 x 131 mmWeight410 g without power supply Shipped with Royal Mail special delivery, next day delivery and fully insured for both of our peace of mind Please dont hesitate to get in touch with any questionsThanks