The Phono Box S2 Ultra is like no other phono stage available today. Punching well above its weight for sound quality, it replaces the popular Phono Box DS and DS+ models in the Pro-Ject range, and still manages to boast an array of features for easy pairing with any modern cartridge.
The Phono Box S2 Ultra utilises a fully discrete electronic layout without the use of operational amplifiers (op-amps). Op-amps are commonly used in phono stages to increase the quiet sound from a pick-up cartridge to a level that modern amplifiers can use. However, by shifting away from that technology, Pro-Ject are able to produce a device with a warm, harmonious sound. In addition, the use of polystyrene capacitors makes the Phono Box S2 Ultra almost unique on the market, as such components are normally reserved for far more expensive products. Elsewhere, the split RIAA equalisation circuit enables pin-point accuracy of the RIAA curve and the introduction of a subsonic filter ensures your music sounds right in any environment.
The Phono Box S2 Ultra delivers a true audiophile sound performance that belies its small form and attractive price. With a sonic signature that delivers the full beauty of a vinyl record, it also remains easy to set up. With a series of dip-switches on the bottom of the solid metal casework, there are multiple settings for impedance (MC), capacitance (MM) and gain – so any modern Moving Magnet or Moving Coil cartridge is easy to accommodate.
- Audiophile phono stage in a compact chassis
- No Operational Amplifiers (op-amps) used
- Audiophile-grade polystyrene capacitors used inside
- Precise split RIAA equalisation
- Switchable Subsonic Filter
- Switchable input impedance, capacitance and gain
- Solid metal casing available in black or silver
Hi-Fi Choice, May 2019
|Sound Quality:||4.5 stars|
|Value for Money:||5 stars|
|Build Quality:||5 stars|
Comments of Note:
"this is a flexible and attractive phono stage that deserves to be high on any audition shortlist at the price"
Read the full review here.
Hi-Fi World, March 2019
|OUTSTANDING - Amongst the best|
Comments of Note:
"This little phono stage does a wonderful job. Excellent detail and dynamics, very musical, compact and practical design."
Read the full review here
|Input Impedance:||10 / 100 / 1k or 47kΩ|
|Input Capacitance:||100 / 220 pF|
|Gain Switch:||40 / 43 / 50 / 53 / 60 / 63dB|
|Subsonic Switch:||-18dB @ 20Hz|
|Signal-to-Noise Ratio:||89dB V (MM)|
|RIAA Accuracy:||<0.4dB / 20Hz - 20kHz|
|In/Out Connectors:||1 pair RCA Connectors|
|Power Consumption:||18V / 80mA|
|Power Supply:||18VDC / 500mA|
|Dimensions:||103 x 37 x 119mm|
|Weight:||570g (Without PSU)|
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