Pro-Ject Pre Box S2 Digital Headphone Preamplifier DAC TOP

Technical features:

Pro-Ject Pre Box S2 Digital Headphone Preamplifier DAC TOP
Double ESS Saber ESS9038 high end DAC
Proprietary clock circuit
Organic polymer capacitors and miniMELF resistors
MQA decoding
DSD64, DSD128, DSD256 & DSD512 (DSD over PCM)
Decoding up to 24bit / 192kHz for optical and coaxial inputs
7 digital filters selectable.
1 proprietary digital filter "Optimum Transient"
6.3mm headphone output
Synchronization of all internal oscillators
Jitter less than 100 Femtoseconds
Printed 4-layer gold-plated printed
Aluminum / metal container in black and silver colors
Remote control as an accessory

3 inputs, 1x coax (S / PDIF), 1x optical, USB B
D / A converters: 2x ESS9038Q2M 32-bit PCM 768kHz / DSD512
Headphone amplifier: ESS9602
Sampling rates: 32 / 44.1 / 48 / 88.2 / 96 / 176.2 / 192 / 352.8 / 384/768 kHz
DSD support: DSD64, DSD128, DSD256 and DSD512
MQA support
7 selectable filters
Frequency response: 20Hz - 20kHz
Analog outputs: 6.3mm headphones, 1x RCA variable
Output voltage: 2.05 Veff
Headphone output: 68mW (32Ohms)
Distortion THD: 0.0003%
Dynamic range: 124dBA
Power consumption: 5V, micro USB
Dimensions (PxAxL): 103x36x103 mm
Weight: 600g without power supply