Project S2 ULTRA Phono Stage (Black)


Discrete MM/MC phono preamplifier

Phono Box S2 Ultra – Luxury and audiophilia combined!

The Phono Box S2 Ultra is like no other phono preamplifier in its segment. The incredible success of our Phono Box Ultra 500, incited us to introduce this marvelously sounding phono preamp into our regular S2 line. The solid metal casing protects against interference and the internal design remains as spectacular as before.



Pro-Ject Phono Box S2 Ultra, Hi-Fi Choice, May 2019

Hi-Fi Choice, May 2019

Sound Quality: 4.5 stars
Value for Money: 5 stars
Build Quality: 5 stars
Features: 4.5 stars
Overal: 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.

Technical Data

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)
THD+N: 0.00052%
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)