Phono Box S2 Ultra uses a fully discrete, Op-Amp-free design that fosters sonics rarely found in this class. On top of omitting Op-Amps, the selected polystyrene capacitors (known among audiophiles as the ‘holy grail’ for phono preamplifiers) significantly contribute to the clean, clear, detail-oriented sonics that S2 Ultra delivers. With wide-ranging flexibility in gain, load & capacitance, it can handle with grace almost any cartridge you throw at it. Split RIAA equalization creates an ultra-accurate representation of the RIAA curve, further refining what you hear. To protect the circuitry from potentially harmful interference, the S2 enclosure features a 2-layer enclosure comprised of aluminum & steel.
ADDITIONAL INFORMATION
| Weight | 0.57 kg |
|---|---|
| Dimensions | 11.9 × 10.3 × 3.7 cm |
| Color | Black, Silver |
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
- Handmade in Europe
Pro-Ject Phono Box S2 Ultra Phono Preamplifier
Tech Specs
- Input impedance: 10, 100, 1k, 47k ohms / 100pF
- Input capacitance/impedance: 100pF, 200pF, 320pF and 420pF */47kohms B
- Input gain: 40 and 43dB B / 60 and 63dB A
- Signal / Noise ratio MM: 85dBV (90dBV – ‘A’ weighted)
- Signal / Noise ratio MC: 65dBV (71dBV – ‘A’ weighted)
- THD: <0,0005% MM, < 0,004% MC
- RIAA-equalization curve accuracy: <0,4dB / 20Hz - 20kHz
- Subsonic filter: at 20Hz with 18dB/octave
- Input: 1 pair RCA/phono sockets
- Line-level output: 1 pair RCA/phono sockets
- Power supply DC: 18V/500mA
- Power consumption: 18V/80mA DC
A: typical for low output MC cartridges, B: typical for MM cartridges or high output MC
*Input capacitance is irrelevant for low output MC cartridges.
