Pro-Ject Phono Box S2 Ultra Preamplifier - Black

Code: 9120082382120
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489,00 лв
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MM/MC phono preamplifier - Luxury and audiophilia combined

The Phono Box S2 Ultra is like no other phono preamplifier in its segment. The solid metal casing protects against interference and the internal design remains as spectacular as before.

A fully discrete, OpAmp less design allows the realization of incredibly harmonious sound. On top of leaving out operational amplifiers Pro-Ject decided to use polystyrene capacitors, which significantly contribute to the high end sound of the Phono Box S2 Ultra. These capacitors are known amongst audiophiles as the holy grail for phono preamplifiers. The split RIAA equalization enables a pin-point accurate representation of the RIAA curve, a luxury many other phono preamps do not possess.


  • Audiophile Performance
  • No Operational Amplifiers used
  • Audiophile-grade polystyrene capacitors
  • Precise split RIAA equalisation
  • Switchable Subsonic filter –18 dB @ 20Hz
  • Switchable input impedance/capacitance
  • Four adjustable gain levels
  • Solid metal casing protects from interferences
  • Outstanding sound quality
  • Available in silver or black

What's in the box?

  • Phono Box S2 Ultra
  • Power supply

Technical information

  • Input impedance: 10 Ohm/ 100 Ohm/1 kOhm / 47 kOhm
  • Input capacitance: 100 pF/ 220 pF
  • Gain switch: 40dB/43dB/60dB/63dB
  • Subsonic switch: -18 dB @ 20 Hz
  • Signal-to-noise ratio: 89 dB V (MM)
  • THD: 0.00052%
  • RIAA accuracy: < 0.4 dB / 20 Hz – 20 kHz
  • In/Out sockets: 1 pair RCA connectors
  • Power consumption: 18 V / 80 mA
  • Outboard power supply: 18 Volt DC/ 500 mA
  • Dimensions ( W x H x D ): 103 x 37 x 119 mm
  • Color: silver or black
  • Weight: 570 g without power supply
Input connection:
Output connection:
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