Pro-Ject Phono Box S3 B Balanced Phono Preamp
Description
Phono Box S3 B - Phono Preamplifier with Balanced ConnectionsPhono Preamplifier with Balanced Connections
The Phono Box S3 B is a proficient phono preamplifier that offers a fully balanced design in a neat, small package.
This tiny chassis is packed to the brim with high-end features. One of those is the new True Balanced Connection. At Pro-Ject, balanced connections were previously exclusive to the RS range of products until now. The Phono Box S3 B brings those features to a remarkably accessible price point.
High End Features Made Accessible
The Phono Box S3 B comes in completely redesigned casework. The larger size (than the S2) enables a completely new feature set that breaks new ground at the price. The steel & aluminium case offers very high rigidity and isolation against outside interferences, which is essential for the new technology inside.
Fully Discrete and Symmetrical Gain Stage
The new Phono Box S3 B gain stage uses a fully discrete layout. A discrete circuit is composed of disparate electronic components and individual devices that result in better sound quality.
The amplifier section of the Phono Box S3 B is built of single parts and doesn‘t use any integrated circuits. This makes for a longer and more costly design process but the resulting audio speaks for itself.
Fully Discrete and Symmetrical Gain Stage
The new Phono Box S3 B gain stage uses a fully discrete layout. A discrete circuit is composed of disparate electronic components and individual devices that result in better sound quality.
The amplifier section of the Phono Box S3 B is built of single parts and doesn‘t use any integrated circuits. This makes for a longer and more costly design process but the resulting audio speaks for itself.
True Balanced Connection
Part of the Phono Box S3 B's redesign is the inclusion of a balanced signal at a terrific price point. And the best part is that thanks to a range of new cables from Pro-Ject, these inputs can be used with any Pro-Ject turntable, whether it has RCA or 5P XLR outputs.
However, to truly utilise the balanced circuitry, a Pro-Ject turntable with a moving coil cartridge and 5P output can be connected to the Phono Box S3 B with a 5P to XLR cable. The decreased noise and interference and improved dynamics have to be heard to be believed.
Specifications:
| 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 |