Pro-Ject Phono Box S3 B

Pro-JectSKU: 01005921238

Color: Black
Price:
Sale price€318,99 Regular price€399,00

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Description

Pro-Ject Phono Box S3 B comes with a completely new cabinet. Thanks to the larger cabinet, Pro-Ject has been able to introduce new features in the new S3 B Phono stage. The new cabinet is made of steel and aluminum ensuring excellent rigidity. The front keys are also made of aluminum, in order to reduce/avoid interference.

“B” stands for balanced
The symmetrical circuit design is the real distinguishing feature of this phono stage. If you connect your turntable with the 5-pin mini XLR cable, you will immediately have maximum performance with balanced signal path. Balanced connections use three wires per channel: ground, one hot, and one cold. The cold pole is nothing but the hot pole with reversed polarity. When receiving, the cold pole is inverted and added to the hot pole. If the cable detects noise, this is added to both signals. By inverting one of them and adding them in reception, the noise is cancelled.
Since there are two separate signal chains, it is also necessary to have two individual amplifier sections.

Not only balanced, even discrete
The gain stage of the new Phono Box S3 B uses a fully discrete layout. A discrete circuitry is composed of single electronic components and not of operational ones where the single components are inserted in a single integrated circuit.
This takes a longer and more expensive design process, but the result is a dramatic improvement in sound quality.

Semi-passive equalization
After processing the +/- balanced signals independently, they are summed and processed by the semi-passive RIAA equalization stage. By keeping the gain stage completely symmetrical, it is possible to optimize the signal-to-noise ratio and minimize interference, giving the EQ section the best signal to work its "magic" on. For balanced XLR outputs, the balanced stage generates a symmetrical signal, so you benefit from balanced signal transmissions. RCA outputs are single-ended in nature and their signals are fed directly by the RIAA equalizer.

Endless brush head options
Compared to the S2 line, it is now possible to set and choose the fitting values, easily from the front panel. You can connect two turntables with two different heads at the same time. Each input setting is memorized. The gain is selectable from 40dB to 65dB. It can be perfectly matched to a wide variety of cartridges and HiFi systems, optimizing the output level in line with other sources, such as CD or streaming devices. The options to adapt to MM and MC cartridges have been designed in such a way as to satisfy the widest range of cartridges and guarantee their compatibility with the Phono Box S3 B. Very low values, such as 50pF or 10ohm, allow to take into account particular situations such as high capacity cables. The Phono Box S3 B is always able to satisfy all requirements.

Salient features
  • 5-pin mini XLR balanced input
  • XLR balanced output
  • Symmetrical and discrete gain stage
  • All settings on the front panel
  • Semi-passive RIAA equalization
  • MM and MC
  • Dual mono design
  • Very low distortion and noise
  • Thick aluminum case to reduce interference
  • Available in Black or Silver
  • Made in Europe

Technical features
  • Input Impedance: 10, 50, 100, 1K, 47Kohm
  • Input capacitance: 50, 150, 300, 400pF
  • Gain (+6dB with XLR output): 40, 45, 60, 65dB
  • Signal to Noise Ratio MM (40dB): 103dB
  • Signal to Noise Ratio MC (60dB): 85dB
  • Distortion THD at 1kHz MM/MC: <0.001%/0.005%MC
  • Distortion THD 20Hz-20kHz: <0.008%/0.01%MC
  • RIAA curve accuracy: <0.3dB
  • Subsonic Filter: 20Hz, 18dB/octave
  • Inputs: 1x5PIN mini XLR, 1xRCA
  • Line Out Level: 1xRCA, 1xXLR
  • Power adapter: 18V/500mA
  • Consumption: 18V Maximum 170mA, <0.5W standby
  • Dimensions: 206x55x153mm
  • Weight (without power supply): 930gr

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