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.

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
• Handmade in Europe

Specifications:

• 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.
• Weight:  0.57 kg
• Dimensions:  11.9 × 10.3 × 3.7 cm