Pro-Ject Phono Box S3 B

£349.00

The Phono Box S3 B is extensively customisable so suit the moving magnet or moving coil cartridge it is connected to

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Phono Box S3 B

Phono Box S3 B Black

The Phono Box S3 B is a compact, affordable moving magnet and moving coil phono stage with dual-mono layout, discrete circuitry and balanced inputs and outputs.

With its spacious, minimalist design layout, it is easily customisable to suit any connected cartridge, and offers unrivalled value for money and performance when connected to any matching analogue hi-fi system.

The Pro-Ject design team took the decision to employ fully symmetrical and discrete circuitry in the gain stage of the Phono Box S3 B.

Discrete circuits involve no operational amplifiers (op-amps), and the result is a more neutral, natural, dynamic, and vivid sound.

They are more complicated to put together and involve a greater variety of components, but the result when utilised in a well-organised electrical layout is a true high-end sound.

The Phono Box S3 B is extensively customisable so suit the moving magnet or moving coil cartridge it is connected to.

With five Impedance (Ω), four Capacitance (pF) and four Gain options on offer, there are very few cartridges this box of tricks cannot accommodate.

As the Phono Box S3 B is equipped with both balanced inputs and outputs, it is also part of Pro-Ject’s True Balanced Connections concept.

By connecting to a turntable with a moving coil cartridge and using one of Pro-Ject’s balanced connection cables, your analogue system can benefit from increased dynamics, less noise and improved signal-to-noise ratios.

Going true balanced is like hearing parts of your music that were not there before.

This requires engineering that has never been seen at this price point and opens up iconic mid-level turntables, such as the Debut Pro, to the benefits of True Balanced Connections.

Elsewhere in the Phono Box S3 B design, the semi-passive RIAA equalisation stage is optimised for absolute accuracy and signal integrity.

Depending on the outputs you are using, this stage is then either directly fed to the output stage (when using RCA outputs) or is connected to a balancing stage for onward balanced connections.

The Phono Box S3 B is finished in a steel chassis, covered by silver or black aluminium panels, for extreme rigidity and good electrical isolation.

The neat minimalist aesthetic allows for good spacing between controls on the front panel and connections on the back panel, despite its smaller size.

It also features an external power adapter, to keep the sensitive internal signals free from any interferences.

True Balanced Connections

Phono Audio Venue

The interconnect cable between a record player and a phono stage is prone to pick up noise on the way.

That noise and interference can stem from a lot of unavoidable sources, such as household applicances, wi-fi and bluetooth devices, other power cables and audio amplifiers.

Unshielded (i.e. RCA) interconnects can amplify the picked-up noise and make it audible through your speakers, interfering with the pure musical signal.

Balanced (typically XLR) cable connections double the wires carrying the musical signal – with one side inverted.

In this case noise still gets picked up by both wires, but with one side reversed.

When the signals are re-joined at the phono stage, the picked-up noise is cancelled out by the opposing signals.

The benefit of this is a louder, cleaner musical signal that has doubled in size with almost no remaining noise.

For more information about ‘True Balanced Connections’ click here.

Key Features: Phono Box S3 B

  • NEW 5-pin mini XLR balanced input
  • NEW balanced XLR outputs
  • NEW fully symmetrical & discrete gain stage
  • NEW easy settings adjustment on the faceplate
  • MM & MC capable
  • Dual mono design
  • Semi-passive RIAA equalization
  • Superior low noise / low distortion
  • Aluminium casing protects against interference
  • Available in silver or black
  • Made in Europe

Specifications Phono Box S3 B

Specifications Phono Box S3 B
Input impedance: 10, 50, 100, 1k, 47k ohms
Input capacitance: 50, 150, 300, 400 pF
Gain (+ 6dB using XLR Out): 40, 45, 60, 65 dB
SNR MM (40dB): 103dBV, 110dBV – ‚A‘ weighted
SNR 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
Weight: 930g without power supply
Phono Box S3 B Silver

Brand

Pro-Ject

Pro-Ject was founded in 1991, during the onslaught of the compact disc and CD players, with the mission to offer the best analogue experience for reasonable prices. In a time where the digital audio media had been on the rise, and vinyl was declared as outdated and dead, Heinz Lichtenegger kept his belief in the simple but best way to enjoy music – turntables Their aim is to get as many people as possible into the wonderful hobby that is HiFi audio and to deliver a real stereo experience for the lowest cost possible. The best way to start there is with a proper turntable. They want to give the customers back the right to choose what they need, without overblowing their products with unnecessary features. At Pro-Ject they strive to create astonishing products with impeccable value. They only use the best components for the price and manufacture their handmade goods solely in Europe. With an eye for future trends they are always trying to fit the needs of the market. With an unexpected hit-review of the Pro-Ject 1, the success-story began its first major chapter. With the gaining popularity and interest, more and more international distributors began to make Pro-Ject turntables available in their countries. Today they ship into more than 80 countries world-wide and are happy to share some of their passion with every customer. With cutting edge technologies and machines, they are able to create visually pleasing products without losing the eye for the finest details. In Czech Republic, they produce all their turntables from scratch, by hand and in house. From the tiniest screw to the chassis, everything is done by their technicians. A strict four step quality control ensures that everything works as intended. In Slovakia they manufacture micro sized high end audio components. By shrinking the cabinets to a miniature size, they were able to save costs and offer their customers a true price to performance relation.  

Additional information

Colour

Black, Silver

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