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(4139) 100.0%,
Location: Grand Rapids, Michigan
Ships to: US,
Item: 196439323527
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Item must be returned within:30 Days
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Pro-Ject:Pro-Ject
Type:Digital Preamplifier DAC
Color:Black
Box S2:Box S2
MPN:PRPRBS2D BLK
Pro-Ject Pre Box S2 Digital Preamplifier And DAC Black Proprietary Clock Circuitry Design Pre Box S2 Digital is also the very first Pro-Ject devices to support hardware MQA decoding. It’s also the premiere of the company’s proprietary Optimum transient digital filter and its proprietary clock circuitry design. Pro-Ject is using a 16-core XMOS chip for asynchronous USB data transfer and full MQA hardware unfolding. The DAC directly controls the XMOS chip. A four layered, gold plated PCB with extra shielding is used to achieve optimal audio performance. Digital audio is all about the art of time, and with Pro-Ject’s new proprietary clock design, the Pre Box S2 Digital manages jitter rates of unrivalled 100 Femtoseconds, which easily outperforms many renowned and respected audiophile clock generators. Extremely Low-Noise USB Operation A huge problem for USB DACs is the transmission of noise through the USB output. Pro-Ject vastly reduces the noise through both actively and passively filtering the output. After applying passive RF interference filtering, noise on 1 kHz drops to -125 dB, and at 10 kHz noise comes even close to -160 dB. Applying an active filter after the passive filtering has even more impressive results that are limited by the capabilities of the measuring equipment. The noise floor is at -160 dB or even lower. Blows Away Much Larger Components With organic polymer capacitors and thin film mini-MELF resistors, Pro-Ject was able to create a tiny device that will blow away even much bigger components for a much higher price. With a total of seven digital filters available onboard (including the proprietary Optimum transient digital filter), the sound can be shaped precisely to the listeners liking. Pre Box S2 Digital is fully remote operation capable, and it can also control the playback software of a computer. For convenient fast access to your music, you can also access the Play, Pause, Forward, and Rewind functions directly from your Pre Box S2 Digital front panel. Pre Box S2 Digital provides up to 24-bit, 192 kHz decoding via its optical and coax inputs and up to 32-bit, 768 kHz via USB. Technical Info On The Internals Pro-Ject is using dual DAC 2 x ESS9038Q2M, the newest generation of SABRE Digital to Analog Converter. 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. It also delivers an unprecedented dynamic range of up to 129dB and total harmonic distortion plus noise of -120dB (THD+N) – a performance level that will satisfy the most demanding audio enthusiasts. The ESS9602 is used for the headphone amplifier and output buffer. It supports a dynamic range of up to 122dB and THD+N of -117dB with 600ohm loads. Additionally, Pro-Ject implemented a unique feature that improves THD+N with 32ohm loads to -112dB in Best Performance mode. The ESS9311 is the industry’s first low-noise, low-dropout regulator designed specifically for high-performance audio systems. It is optimized for high resolution audio thanks to its revolutionary dual regulator architecture. This innovative architecture contains series-voltage and shunt-voltage elements, eliminating the need for output decoupling capacitors – an industry first in audio system design. The ESS9311 provides the extremely low-noise outputs that are necessary for driving the reference inputs of audio converters and offers significant value-add for audio system designers. Product Features Dual mono construction High end ESS Sabre ESS9038 dual DAC Proprietary clock circuity design Organic polymer capacitors and thin film miniMELF resistors MQA hardware decoding DSD64, DSD128, DSD256 & DSD512 (DSD over PCM) Up to 24bit/192kHz for optical & coax inputs 7 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 3 digital inputs: 1x coax (S/PDIF), 1x optical (TOSlink), USB-B Analog out 6.3mm Headphone Out (front), 1x Variable Out (RCA) D/A-converter: 2x ESS9038Q2M 32-bit PCM 768kHz / DSD512 Product Specs D/A-converter: 2x ESS9038Q2M 32-bit PCM 768kHz / DSD512 Headphone amplifier chip: 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: Full MQA decoding by hardware Frequency response: 20Hz – 20kHz Output voltage: 2.05 V eff Headphone output power: 68mW (32Ohms) THD: 0.0003% Dynamic Range: 124dBA Power consumption: 5V, micro USB Dimensions W x H x D: 4″ x 1.4″ x 4″ Weight: 21 oz. without power supply
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