Pro-Ject Pre Box S2 Digital in Geneva | Digistore.ch
Pro-Ject Pre Box S2 Digital in Geneva | Digistore.ch
    Pro-Ject Pre Box S2 Digital in Geneva | Digistore.ch
    Pro-Ject Pre Box S2 Digital in Geneva | Digistore.ch

Pro-Ject Pre Box S2 Digital | DAC preamp and headphone amp

64042
CHF389.00 Tax included
Supplier stock – typically 4 to 7 days
Pro-Ject Pre Box S2 Digital, a digital micro preamplifier with dual ESS Sabre ES9038Q2M DACs, MQA and DSD512 capable. It also works as a headphone amplifier and is fully remote-controlled.
Color : Black
Quantity
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Supplier delivery time usually 4 to 7 days

Two silver units on a leather cabinet with headphones

Dual ESS Sabre DACs

The Pre Box S2 Digital uses two ESS Sabre ES9038Q2M converters in a dual-mono configuration. Over USB it plays PCM up to 32-bit/768 kHz and DSD up to DSD512, and decodes MQA in hardware. The optical and coaxial inputs accept PCM up to 24-bit/192 kHz.

Silver preamp connected to headphones, next to a laptop

In-house clock and filters

Pro-Ject developed its own clock, with jitter quoted at around 100 femtoseconds, and its Optimum transient digital filter. Eight filter characteristics in total let you fine-tune the sound. Organic polymer capacitors and thin-film miniMELF resistors sit on a gold-plated four-layer circuit board.

Inside view of the circuit on a marble background

Front headphone output

The 6.3 mm headphone socket on the front accepts headphones from 8 ohms. A variable RCA output feeds a power amplifier. The supplied remote sets the volume and also controls playback on a computer: play, pause, forward and rewind.

Silver rear panel with USB, coaxial, optical inputs and RCA output

Edition 23 in silver

The silver finish corresponds to Edition 23, revised with John Westlake: redesigned internal power supply, master clocks and output stage, plus a more powerful headphone amplifier. Its headphone output rises from 68 to 100 mW into 32 ohms. The aluminium and metal sandwich case measures 10.3 x 3.7 x 12.2 cm and weighs 366 g.

Black = Black; Silver = Silver (Edition 23)
64042

Data sheet

Product Type
Digital preamplifier and DAC
Features
Dynamic range: 124 dBA
Filter settings: 7 different settings selectable on the front
Minimum recommended headphone impedance: 8 ohms
Outboard power supply: 5 V / 1 A DC (included)
Brand
Pro-Ject
Integrated DAC
2 x ESS9038Q2M 32-bit
Headphone output
6.6 mW / 600 ohms, 68 mW / 32 ohms (Edition 23: 100 mW / 32 ohms)
Audio outputs
6.3 mm headphone (front), 1 x variable out (RCA)
Digital inputs
1 x USB (B), 1 x coaxial (RCA), 1 x optical (Toslink)
Color
Black
Silver
Audio format
MQA
Optical and coaxial: PCM up to 24-bit/192 kHz
USB: up to DSD512 (DSD1024), PCM up to 32-bit/768 kHz
Frequency response
20 Hz – 20 kHz
Niveau de sortie
2.05 Vrms
Distortion (THD)
0.0003% at 0 dB, 2 V RMS, 1 kHz
Width
10.3 cm
Depth
12.2 cm
Height
3.7 cm
Unit weight
0.366 kg

Specific References

EAN13
9120065186400
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