INSTRUCTIONS FOR USE Pro-Ject Pre Box S2 Digital
Dear music lover, thank you for purchasing a Pro-Ject Audio Systems preamplifier. In order to achieve maximum performance and reliability you should study these instructions for use carefully. Warning of a hazard for the user, the unit or possible misuse Important notice Safety instructions AC outlet voltages vary from country to country. Before connecting to the mains, make sure that the voltage in your area meets the voltage requirements printed on the power supply.
Headphone connection Connect the headphones to the socket on the front panel (Jack 6,3mm). Rear output is muted when headphones are in use. Green headphone icon in the left top corner of the display indicates active headphone output. Inputs The unit offers 3 digital inputs: USB, Optical and Co-axial USB: is dedicated for connection to a Computer. Connect the USB input of the unit to a free USB-socket on your computer and turn it on/make sure it is powered on.
Front panel Volume Adjust the volume to the desired level from -80dB to 0dB, using the knob on theright side of the front panel. Volume settings are stored separately for headphone output and RCA output. Input selector After the unit is powered on, operating the buttons marked with Input ▲,▼ select the inputs. The selected input is indicated by its name (USB, OPT, COAX) when changed and then by a small icon in the bottom left corner of the display.
Technical data Digital inputs D/A-converter Playback formats 1x USB (B), 1x Co-axial (RCA), 1x Optical (TOSLink) 2x ESS9038Q2M 32-bit USB: up to DSD512 (DSD1024), PCM up to 32b/768kHz Optical: PCM up to 24b/192kHz Coaxial: PCM up to 24b/192kHz Filter settings 8 different selectable on front Frequency response 20Hz - 20kHz Analogue outputs 6.
Product information 05.
2 Product information 05. 2017 First class components from first class manufacturers! We are using dual DAC 2 x ESS9038Q2M - the newest generation of SABRE Digital to Analog Converter. The new benchmark in audio excellence. The ES9038 SABRE DAC is a high-performance 32-bit digital to analog converter and uses ESS’s patented 32-bit Hyperstream II modulator architecture and Time Domain Jitter Eliminator. It is the first SABRE DAC to use new Dual-DAC architecture to further enhance performance.
3 Product information 05. 2017 Double filtering for a noise free USB input One of the major problems for USB DACs is the transmission of unwanted noise coming through the USB output. A lot of research of Pre Box S2 Digital went into how to make this noisy connection more quiet. After a lot of headscratching trial and error we found the solution to lie in active and passive filtering of the output.
We've come up with a pretty nice little primer for MQA and the Pre Box S2 Digital: A few facts to start MQA can only be transmitted over USB from a computer right now. As I understand, it's not compatible with any mobile devices yet. The playback process for MQA is split into 2 stages, the decode and then the render. o These can be both handled by the same device and it should show "MQA" on the Pre Box S2 Digital Display.
MQA Playback MQA Studio “Blue” MQA “Green” MQA Render “Magenta”
TIDAL Player Settings
TIDAL DAC Settings
MQA Studio “Blue” The MQA ‘Studio’ (blue light) gives confirmation directly from mastering engineers, producers or artists to their listeners. MQA Studio authenticates that the sound you are hearing is exactly as played in the studio when the music was completed and, by implication, that this is also the definitive version of the recording at that point in time.
MQA “Green” A second level, ‘MQA’ (green light) is available to indicate that although the stream is genuine, provenance may be uncertain or that it is not yet the final release.
MQA Render TIDAL Player App provides bit-accurate Authenticated Core to an MQA certified Render.
MQA Render “Magenta” Takes a bit-accurate signal from a Core decoder and complete the final unfold in its analog context. This type of device is available for portable applications (such as active headphones or portable amplifiers) and for silicon integration.
Testimonials 9 MQA BRIEFING PACK
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