The Pro-Ject Phono Box S2 Ultra is like no other phono preamplifier in its segment. The incredible success of the Phono Box Ultra 500, incited Pro-Ject to introduce this marvelously sounding phono preamp into the regular S2 line. The solid metal casing protects against interference and the internal design remains as spectacular as before.
On offer is a fully discrete, OpAmp less design, which enabled the designers to realize an incredibly harmonious sound. On top of leaving out operational amplifiers it was 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.
External Review
Hi-Fi Choice Magazine gave the Pro-Ject Phono Box S2 Ultra a Recommended Rating. Read Full Review HERE.
Features
- 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
Technical Specifications
- 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 - 20k Hz
- 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
- Colour: silver or black
- Weight: 570 g without power supply
Further Information
Pro-Ject Phono Box S2 Ultra - Phono Stage - User Manual
Pro-Ject Phono Box S2 Ultra - Phono Stage - Product Information