Pro-Ject Head Box S2 Digital Headphone Amplifier

Headphone amplifier and DAC with 32bit and DSD256 support

High performance DAC and headphone amplifier

Head Box S2 Digital comes fully equipped for the highest demands of the modern audiophile. It supports playback for PCM files up to 32bit / 768kHz and DSD decoding up to quad DSD (DSD256). Head Box S2 Digital also comes with five digital filters for soundshaping to the listeners preferences. Three digital inputs ensure to connect to any source available, be it a personal computer via the USB B input or a TV set via the optical input. The coaxial S/PDIF input takes all data from a digital transport such as the CD Box DS2 T. All inputs offer support for high resolution data up to 24bit /192kHz. The USB input offers full high resolution support for all files up to PCM 32/768 and DSD256. The front seated 6.35mm headphone output delivers a clean and precise sound with a musical touch. Unwanted noise coming in through USB is double filtered to surpress them to a level where it can’t affect audio to realize an undisturbed listening experience. The new aluminium/metal casing ensures highest aesthetics and protects against vibration and interference! Head Box S2 Digital comes in silver or black.

Features

High end ESS Sabre ESS9038 DAC

Proprietary clock circuity design

Organic polymer capacitors and thin film miniMELF resistors

32bit / 768kHz decoding

DSD64, DSD128 & DSD256 (DSD over PCM)

Up to 24bit/192kHz for optical & coax inputs

5 selectable digital filter characteristics

1 proprietary optimum transient digital filter

Headphone output on the front (6.3mm)

Synchronization of all internal oscillators

Jitter as low as 100 Femtoseconds!

Gold plated four layer PCB

Full alu/metal sandwich casing in silver or black

Specifications

Digital inputs 1x USB (B), 1x Co-axial (RCA), 1x Optical (TOSLink)

D/A-converter 1x ESS9038Q2M 32 bit

USB up to DSD256, PCM up to 32b/768kHz

Coaxial PCM bis 24 b / 192 kHz

Optical PCM bis 24 b / 192 kHz

Filter settings 5 different selectable on front

Frequency response 20 Hz - 20 kHz

Analogue outputs 6.3mm Headphone (front), 1x Pre Out (RCA)

Output voltage 2,05 Veff

Headphone output power 68 mW /32 Ohm, 6.6 mW / 600 Ohm

THD 0,0007% at 0 dB, 2 V RMS, 1 kHz

Dynamic range 120 dBA

Outboard Power supply 5 V /1 A DC (included)

Dimensions W x H x D 103 x 37 x 122 (including knob and connectors)

Weight 360 g without power supply