Pro-Ject Phono Box S3 B Balanced Phonostage

Pro-Ject Phono Box S3 B Phonostage

Decerning audiophiles often expect balanced outputs, but that's really only half the story. It's possible to put XLR connectors on any device. You need fully discrete symmetrical gain stages to truly take advantage of balanced outputs, and that's exactly what the S3 B offers. 

With a larger chassis than other models in the S-series (to help isolate the gain stages), and adjustable impedance, capacitance and gain, controllable from the front panel, the S3 B offers performance and features rarely seen in phonostages at this price point.

Also featured on the front panel is a handy subsonic "rumble" filter is great for anyone experiencing low end hum.

Features

• Fully discrete & symmetrical gain stage
• Balanced (XLR) inputs and outputs
• Cartridge loading options on front panel
• Handmade in EU
• Pro-Ject 5-pin mini XLR input

Specification

Input impedance:    10, 50, 100, 1k, 47k ohms
Input capacitance:    50, 150, 300, 400 pF
Gain (+ 6dB using XLR Out sockets):    40, 45, 60, 65 dB
Signal / Noise ratio MM (40dB):    103dBV, 110dBV - 'A' weighted
Signal / Noise ratio MC (60dB):    85dBV, 90dBV - 'A' weighted
THD at 1 kHz:    <0,001% MM, < 0,005% MC
THD (20Hz-20kHz):    <0,008% MM, < 0,01% MC
RIAA-equalization curve accuracy:    <0,3dB / 20Hz - 20kHz
Subsonic filter:    at 20Hz with 18dB/octave
Input:    1x 5-pin mini XLR / 1x pair RCA phono sockets
Line-level output:    1x pair RCA, 1x pair XLR
Power supply DC:    18V/500mA
Power consumption:    18V/170mA DC, <0.5 W in standby
Dimensions:    206 x 55 x 153 (164 with sockets) mm (W x H x D)
Weight:    930g without power supply