{"title":"Pro-Ject Stereo Pre-amplifiers","description":null,"products":[{"product_id":"pro-ject-pre-box-s2-digital-micro-preamplifier-with-mqa-and-dsd512-support","title":"Pro-Ject Pre Box S2 Digital Micro Preamplifier with MQA and DSD512 Support","description":"\u003ch2\u003ePro-Ject Pre Box S2 Digital Micro Preamplifier with MQA and DSD512 Support - Pro-Ject\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003eA performance revolution in a small package!\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003ePre Box S2 Digital marks a new era for our S-series components. For the very first time we are using a dual mono configuration with the highest class D\/A converters of ESS Sabre. Their flagship DAC-chip ensures highest class audio in a small and affordable package. This DAC is capable of high resolution audio up to 32bit\/768kHz PCM and DSD512! Pre Box S2 Digital is also the very first of our devices to support hardware MQA unfolding. It’s also the premiere of our proprietary Optimum transient digital filter and our proprietary clock circuitry design. Digital audio is the art of time, with our new proprietary clock design we have managed jitter rates of unrivalled 100 Femtoseconds, this easily outperforms many renowned and respected audiophile clock generators\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cbr\u003eWith organic polymer capacitors and thin film mini MELF resistors we were able to create a tiny device that will blow away even much bigger components for a much higher price. With a total of eight digital filters the sound can be shaped precisely to the listeners liking. Pre Box S2 Digital is fully remote-able, it can also control the playback software of a computer. You can use Play, Pause, Forward and Rewind straight with your Pre Box S2 Digital!\u003c\/span\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cbr\u003eFeatures:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDual mono construction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eHigh end ESS Sabre ESS9038 dual DAC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eProprietary clock circuity design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOrganic polymer capacitors and thin film mini MELF resistors\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eMQA hardware decoding\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDSD64, DSD128, DSD256 \u0026amp; DSD512 (DoP, DSD512 native)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eUp to 24bit\/192kHz for optical \u0026amp; coax inputs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e8 selectable digital filter characteristics\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e1 proprietary optimum transient digital filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eHeadphone output on the front (6.3mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eSynchronization of all internal oscillators\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eJitter as low as 100 Femtoseconds!\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eGold plated four layer PCB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eFull alu\/metal sandwich casing in silver or black\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003eSpecs\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDigital inputs: 1x USB (B), 1x Co-axial (RCA), 1x Optical (TOSLink)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eD\/A-converter: 2x ESS9038Q2M 32-bit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eUSB: up to DSD512 (DSD1024), PCM up to 32b\/768kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOptical: PCM up to 24b\/192kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eCoaxial: PCM up to 24b\/192kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eFilter settings: 7 different selectable on front\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eFrequency response: 20 Hz - 20 kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eAnalogue outputs: 6.3mm Headphone (front), 1x Variable Out (RCA)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOutput voltage: 2.05 Veff\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eMinimal recommended headphone impedance: 8 Ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eHeadphone output power: 6.6 mW \/ 600 Ohm; 68 mW \/ 32 Ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eTHD: 0.0003% @ 0 dB, 2V RMS, 1 kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDynamic range: 124 dBA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOutboard Power supply: 5V\/1A DC (included)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDimensions W x H x D: 103 x 37 x 122 mm (including knob and connectors)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eWeight: 366 g (without power supply)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAudiolab Stereo \u0026amp; Video Center\u003c\/h3\u003e","brand":"Pro-Ject","offers":[{"title":"Black","offer_id":51811061236078,"sku":"PROPREBOXS2DIGBLK","price":399.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":51811061268846,"sku":"PROPREBOXS2DIGSLV","price":399.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/1537\/4703\/files\/propreboxs2digblk__05360.1687291226.3000.3000_2nd.jpg?v=1738847080"},{"product_id":"pro-ject-pre-box-rs2-digital-preamplifier-dac-headphone-amp","title":"Pro-Ject Pre Box RS2 Digital Preamplifier, DAC, Headphone Amp","description":"\u003ch2\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif;\"\u003ePro-Ject Pre Box RS2 Digital Preamplifier, DAC, Headphone Amp - Pro-Ject\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cstrong\u003eThe most universal \u0026amp; future-proof high end pre-amplifier, DAC, headphone amp!\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eThe Pre Box RS2 Digital is the bigger brother of our award winning and groundbreaking Pre Box S2 Digital. It uses the same excellent sounding DAC chips as the S2 version, proving once again that the Pre Box S2 Digital was already at the very top of high-end DACs and absolutely beyond its competition. Based on the same core-design principles, the feature set is extended and driven to new heights. The result is a fantastic sounding and very versatile box. The perfect partner for the cream of the crop of high-end amplifiers and speakers alike!\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cbr\u003eThe Pre Box RS2 Digital is a DAC and preamplifier that uses a dual-mono configuration of the highest-class D\/A converters from ESS Sabre. ESS9038Q2M chips provide the highest sound quality in price-affordable, high-end circuits. Unlike most of DAC´s in this price range, the Pre Box RS2 Digital includes dual DACs and separate signal paths for the left and right channels. Also thanks to these converters, the Pro Box RS2 Digital supports up to 32-bit \/ 768 kHz files in PCM and DSD formats (up to DSD512) via USB, covering any digital file you can buy or stream.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cbr\u003eThe analog output is a buffer that is both solid state and high-quality tube. Thus, the customer can choose which of the options is preferred. The Pre Box has eight digital filters. One of them is the proprietary optimal transient digital filter from the MQA creators. With these filters, the listener can customize the sound to suit their own preferences. Pre Box RS2 Digital comes with full HW and SW support for MQA technology (Master Quality Authenticated).\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cbr\u003eIn the Pre Box, the USB input signal is processed by a powerful multi-core XMOS microcontroller with advanced Multi-Core RISC architecture. The CPLD MAX II (Complex Programmable Logic Device) Altera is used for re-clocking, which together with the XMOS microcontroller brings high-quality processing of both classical and MQA technology. For the ideal use of this technology, it is best to connect the Pre Box to our Stream Box S2 Ultra in conjunction with the TIDAL service. You can also enjoy MQA quality by linking it with our new revolutionary CD transport, the CD Box RS2 T. The CD Box RS2 T can be connected to the Pre Box by reliable I²S differential bus via the HDMI connector where the Pre Box RS2 Digital also provides the master clock (16.9344 MHz).\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cbr\u003eThe headphone amplifier is the ultimate design. No compromise. No coupling capacitors. Not even on the output. All of the the amplifier is DC coupled. A very fast DC servo assures no DC voltage on the output. Its output power is suitable for all kind of headphones.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cbr\u003eA premium full aluminum remote control is included in the packaging and the Pre Box RS2 Digital is available in a high-quality silver or black aluminum case. The big display screen on the front shows all relevant information in an easy to read, clean and structured way. Navigating the menu is very responsive and fast, allowing you to set up the unit to your preferences in seconds!\u003c\/span\u003e\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDual Mono DACs: 2x ESS9038Q2M\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eHigh Quality optionally selectable upsampling of PCM and\/or MQA content with proprietary filtering\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eAdvanced re-clocking powered by new XMOS chip with Mulit-Core RISC architecture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e9 digital inputs: i²S HDMI, AES\/EBU, Toslink, S\/PDIF coax, Bluetooth v4.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eAnalogue: Pre-out XLR\/RCA\/headphone, RCA input\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eFully balanced double mono design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOutput stage switchable between 6922 tube \u0026amp; solid state\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eUltra-linear and ultra low noise\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eNew high-quality display with responsive and fast UI design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eHigh quality full Aluminum remote control included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eAvailable in silver and black\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDAC: 2x ESS9038Q2M (dual mono - 32bit\/768kHz\/DSD512)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDigital inputs: 1 x USB 2.0 Audio 32\/768 + DoP and Native-DSD up to DSD512, 1 x HDMI I2S for CD Box RS2 T, 2 x S\/PDIF optical 24\/192, 1 x S\/PDIF coaxial 24\/192, 1x AES\/EBU balanced 24\/192\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eMQA Support: full MQA unfolding by hardware\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eLine-level input: 1 pair XLR, 1 pair RCA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eInput impedance: 15 kOhm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOutput impedance: 180 Ohm solid state, 220 Ohm tube\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eAnalog outputs: Pre-out (XLR \u0026amp; RCA), Headphone (6,35mm jack)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eHeadphone output power: 90 mW \/ 300 Ohm; 245 mW \/ 32 Ohm; 150 mW \/ 8 Ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eTHD+N (20Hz - 20kHz): \u0026lt; 0.006% solid state\/0.017% tube @ 2V RMS, 1 kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eMasterclock output: 16,9344MHz for CD Box RS2 T\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eBluetooth Version: Fully embedded Bluetooth® v4.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eBluetooth Codecs: SBC, AAC, AptX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOutput Buffer: discrete and balanced, tube and solid state\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eTubes: 4 x 6922EH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003ePower supply: 20V\/3A DC, 110-240V\/50, 60 Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003ePower consumption: max. 1,2A DC, \u0026lt;0,5W in standby\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDimensions W x H x D (with sockets): 206 x 72 x 222 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eWeight: 1710 g without power supply\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif;\"\u003eAudiolab Stereo \u0026amp; Video Center\u003c\/span\u003e\u003c\/h3\u003e","brand":"Pro-Ject","offers":[{"title":"Black","offer_id":51811063103854,"sku":"PROPREBOXRS2BLK","price":2999.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":51811063136622,"sku":"PROPREBOXRS2SLV","price":2999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/1537\/4703\/files\/propreboxrs2blk__03099.1687289592.3000.3000_2nd.jpg?v=1738847435"},{"product_id":"pro-ject-pre-box-s2-digital-edition-23-dual-mono-dac-preamp","title":"Pro-Ject Pre Box S2 Digital Edition ’23 Dual-Mono DAC \u0026 Preamp","description":"\u003ch2\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif;\"\u003e\u003cstrong\u003ePro-Ject Pre Box S2 Digital Edition ’23 Dual-Mono DAC \u0026amp; Preamp - Pro-Ject\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003eImproved Edition of a Modern Pro-Ject Classic\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eSince its release in 2017, our Pre Box S2 Digital quickly ascended to ‘exceptional’ status in the DAC market. It gained a reputation among digital audio enthusiasts for its remarkable ability to perform well beyond it’s price point. This achievement can be attributed to a combination of strengths in the design: a custom and proprietary clock design, meticulous PCB layout with discrete power supplies, dual-differential ESS DACs and an exclusive proprietary digital filter designed to deliver pristine and transparent transient response.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cbr\u003eGiven its enduring demand, the chip crisis of 2020-2021 hit Pre Box S2 Digital particularly hard. At that time, Pro-Ject reconvened with the original designer, John Westlake, to implement key improvements that further enhance the design, thus rejuvenating the product almost exactly 5 years after its original introduction.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003e\u003cbr\u003eImproved Internal Power Supply\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eThe power supply units (PSUs) of the clock, DACs, and analog output stages have undergone enhancements to offer increased isolation from PC-USB power noise and achieve a wider\/flatter output impedance across the entire audio bandwidth.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003e\u003cbr\u003eRedesigned Master Audio Clocks\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eWe have redesigned and improved the discrete audio master clocks. This lowers the phase noise and further enhances the already-cutting-edge jitter performance.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003e\u003cbr\u003eNew Output Stage with Higher Class A Current\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eThe new analogue output stage, based around the SABRE9603Q, has higher Class A operating current, for improved performance with low impedance headphones and long cable runs.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003e\u003cbr\u003eNew Headphone Amplifier\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eThe entire design is now more energy efficient. A 12% reduction in PSU current while also offering higher Class A analog stage operating current resulting in lower distortion when used with low impedance headphones. On-the-go users with mobile devices or laptops will also appreciate the lower power draw, and will simultaneously benefit from more power for the energy being drawn. Anyone using low-impedance headphones or in-ears monitors, whether in a mobile, home, or work environment will experience a notable boost in sound quality too.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003e\u003cbr\u003eUnbeatable Value – Handmade in Europe\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eNormally up to 70% of hi-fi production cost goes toward the chassis or cabinet. By reducing the cabinet size and using the same enclosure for entire product lines, Pro-Ject can focus our resources on improving components \u0026amp; technology of a given hi-fi product. this The Pre Box S2 Digital Edition 2023 is carefully designed and handmade in Europe. We aim to develop a technically flawless device in a housing that is only as big as necessary to save raw materials. Due to the timeless design \u0026amp; rigid aluminum casework, the Pre Box S2 Digital Edition 2023 is built for eternity.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003e\u003cbr\u003eProduct Details:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eImproved, more powerful output stage for headphones\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eImproved analog output stage (higher Class A current)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eRedesigned discrete audio master clock\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eImproved internal power supply design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eLess energy consumption, higher efficiency \u0026amp; more power\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eLess demanding on mobile battery life\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eJitter levels below 100 femtoseconds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDual-mono high-end Sabre ESS9038 DACs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOrganic polymer capacitors and thin film miniMELF resistors\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eMQA hardware decoding\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDSD64, DSD128, DSD256 \u0026amp; DSD512 (DoP, DSD512 native)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eUp to 24bit\/192kHz for optical \u0026amp; coax inputs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e8x selectable digital filter characteristics\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e1x proprietary optimum transient digital filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e1\/4″ (6.3mm)headphone output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eSynchronization of all internal oscillators\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eGold-plated four layer PCB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eFull aluminum\/steel sandwich chassis in silver or black\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eMade in Europe\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDigital inputs: USB (B), coaxial (RCA), optical (TOSLink)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eD\/A-converter: 2x ESS9038Q2M (32bit)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eUSB: up to DSD512 (DSD1024), PCM up to 32bit\/768kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOptical: PCM up to 24bit\/192kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eCoaxial: PCM up to 24bit\/192kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eFilter settings: 7 options selectable on front\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eFrequency response: 20Hz-20kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eAnalog outputs: 1\/4″ (6.3mm) headphone, variable RCA line out\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOutput voltage: 2.05V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eHeadphone impedance minumum: 8 ohms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eHeadphone output power: 6.6mW @ 600 ohms, 100mW @ 32 ohms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eTHD: 0.0003% @ 0dB, 2V RMS, 1kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDynamic range: 124dBA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eOutboard Power supply: 5V\/1A DC (included)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDimensions (WxHxD): 103 x 37 x 122mm (including knob and connectors)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eDimensions (standard): 4.06 x 1.46 x 4.80″\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eMass (weight): 366g (0.81 lbs) without power supply\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eBlack Version EAN: 9120129861441\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003eSilver Version EAN: 9120129861458\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003e\u003cb\u003eWhat to expect in the box:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"\u003ePre Box S2 Digital Edition ’23\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"font-family: helvetica, arial, sans-serif;\"\u003e\u003cstrong\u003eAudiolab Stereo \u0026amp; Video Center\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e","brand":"Pro-Ject","offers":[{"title":"Black","offer_id":51813329502574,"sku":"PROPREBOXS2DIGED23BLK","price":499.0,"currency_code":"USD","in_stock":false},{"title":"Silver","offer_id":51813329535342,"sku":"PROPREBOXS2DIGED23SLV","price":499.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/1537\/4703\/files\/pro-ject-pre-box-s2-digital-edition-23-dual-mono-dac-preamp-in-silver.jpg?v=1738877678"}],"url":"https:\/\/audiolab.com\/collections\/pro-ject-stereo-pre-amplifiers.oembed","provider":"Audiolab","version":"1.0","type":"link"}