The Phono Box S3 B is an entry-level phono preamplifier that offers a fully balanced design in a neat, small package. We’ve packed this tiny chassis to the brim with high-end features. One of those is our new True Balanced Connection. At Pro-Ject, balanced connections were exclusive to our RS range of products until now. The Phono Box S3 B brings those features to an incredible new entry level.
Our Phono Box S3 B comes in complete new casework. The bigger size enabled us to bring a completely new feature set that was never seen before in this price range. The new steel & aluminium case also offers very high rigidity and isolation against outside interferences, which is essential for the new technology inside. Connect up to two turntables simultaneously – all parameters for each input get stored in the memory. You can perfectly match the Phono Box S3 B to a wide variety of cartridges. Use the gain setting to accurately match the output to other sources like CD players or streaming devices. Ultra-low values like 50 pF or 10 ohms allow you to account for all situations.
| 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 |