{"product_id":"dcs-rossini-stack","title":"Rossini Stack","description":"\u003cdiv class=\"pa-d5\" style=\"color:#080808;line-height:1.6;font-size:15px\"\u003e\n\u003cp style=\"margin:0 0 6px;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:#8d1935;font-weight:600\"\u003edCS · Rossini\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;font-size:18px;line-height:1.45;font-weight:600\"\u003eThe three-box dCS Rossini: a one-box Ring DAC APEX player that streams, upsamples and drives a power amplifier directly, with the Master Clock and the Transport that dCS designed to complete it.\u003c\/p\u003e\n\u003cp style=\"display:inline-block;margin:0 0 18px;padding:4px 10px;border:1px solid #d8d5ce;border-radius:2px;font-size:13px;color:#55524c\"\u003eStack price: Rossini APEX DAC, Rossini Master Clock and Rossini Transport, priced as the sum of the three components at dCS's current US list. Each is also sold separately; the DAC alone is a complete dCS front end, and the \u003ca href=\"\/products\/rossini-apex-player\"\u003eRossini APEX Player\u003c\/a\u003e puts DAC and disc mechanism in one chassis (\u003ca href=\"\/pages\/rossini-player-or-stack\"\u003ePlayer or stack?\u003c\/a\u003e). \u003cstrong\u003eCables are not included:\u003c\/strong\u003e the stack needs a Dual AES pair, three word clock cables and a network cable, and we quote Nordost cabling for it separately; the \u003ca href=\"\/products\/varese-dcsaudio\"\u003eVarèse\u003c\/a\u003e is supplied with its four ACTUS cables.\u003c\/p\u003e\n\u003cdiv style=\"display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:#d8d5ce;border:1px solid #d8d5ce;margin:0 0 22px\"\u003e\n\u003cdiv style=\"background:#f7f6f2;padding:12px 14px\"\u003e\n\u003cdiv style=\"font-size:20px;font-weight:600;line-height:1.2\"\u003e3\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px;color:#55524c;line-height:1.35;margin-top:3px\"\u003echassis: APEX DAC, Master Clock, Transport\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f7f6f2;padding:12px 14px\"\u003e\n\u003cdiv style=\"font-size:20px;font-weight:600;line-height:1.2\"\u003e−113 dB0\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px;color:#55524c;line-height:1.35;margin-top:3px\"\u003eresidual noise, 24-bit, 20 Hz–20 kHz (dCS figure)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f7f6f2;padding:12px 14px\"\u003e\n\u003cdiv style=\"font-size:20px;font-weight:600;line-height:1.2\"\u003e6 MHz\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px;color:#55524c;line-height:1.35;margin-top:3px\"\u003eRing DAC APEX operation on Mappers 1 and 3; 3 MHz on Mapper 2\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f7f6f2;padding:12px 14px\"\u003e\n\u003cdiv style=\"font-size:20px;font-weight:600;line-height:1.2\"\u003e2022\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px;color:#55524c;line-height:1.35;margin-top:3px\"\u003eStereophile Digital Component of the Year, Rossini APEX DAC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0 0 12px\"\u003eThe \u003ca href=\"\/products\/rossini-network-dac\"\u003eRossini APEX DAC\u003c\/a\u003e is the point at which a one-box dCS system is complete. Inside are the APEX version of the Ring DAC, a full streaming front end running \u003ca href=\"\/pages\/dcs-mosaic-and-mosaic-actus\"\u003edCS Mosaic\u003c\/a\u003e, multi-stage upsampling to DXD or DSD on the dCS Digital Processing Platform, six PCM filters and three Mapper settings, and a digital volume control good enough to feed power amplifiers directly. Everything the \u003ca href=\"\/products\/dcs-vivaldi-stack\"\u003eVivaldi stack\u003c\/a\u003e spreads across three chassis lives here on one set of power supplies, which is what makes Rossini the sensible first dCS and the reference against which the bigger systems are measured (the \u003ca href=\"\/pages\/dcs-first-system-compared\"\u003eLina, Bartók and Rossini\u003c\/a\u003e stacks are compared for a first system on their own page). Jason Victor Serinus wrote in Stereophile that the APEX version \"is more than another upgrade; it's a major advance in digital sound reproduction\", and John Atkinson's measurements, 0.00026 percent THD+N at full scale and linearity error negligible until below −135 dBFS, led him to call its performance \"beyond reproach\".\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px\"\u003eThe \u003ca href=\"\/products\/rossini-clock\"\u003eRossini Master Clock\u003c\/a\u003e is the first addition most owners make. A DAC's internal clock has two jobs, running the converter and locking to the source; the Master Clock separates them, generating the 44.1 and 48 kHz references from two separate crystal oscillators in a chassis with nothing else in it, and sending them to the DAC and the Transport over BNC cables. It does not change the Rossini's character; it sharpens the focus of each instrument and holds the recorded acoustic steady. The \u003ca href=\"\/products\/rossini-transport\"\u003eRossini Transport\u003c\/a\u003e reads CD and SACD on a dual-laser mechanism, passes SACD as native DSD and can upsample CD to DXD, DSD or DSDx2 before it leaves the box, encrypted for a dCS DAC over Dual AES. It is the only way to get an SACD collection into a Ring DAC at native resolution.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px\"\u003eRossini is where the dCS sound starts: a very low noise floor, a stable and deep image, natural tone and none of the glare that makes digital tiring. The step up to Vivaldi is not a better converter chip, since both carry the Ring DAC APEX; it is the separation of streaming, upsampling and clocking into their own chassis, and the \u003ca href=\"\/pages\/dcs-stacks-compared\"\u003ecomparison page\u003c\/a\u003e explains what that buys and why. Each box in this stack is opened and explained above, and the \u003ca href=\"\/pages\/dcs-story\"\u003edCS story\u003c\/a\u003e page covers the technologies in depth.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px\"\u003eOn our floor the Rossini APEX DAC and Master Clock sit together on the rack and are heard most often with McIntosh, Audio Research or MOON amplification into Sonus faber or Bowers \u0026amp; Wilkins loudspeakers. We set up the clock links and Mosaic at delivery and can demonstrate the Master Clock's contribution by switching it in and out.\u003c\/p\u003e\n\u003ch3 style=\"margin:0 0 8px;font-size:16px\"\u003eKey technologies\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 20px;padding-left:18px\"\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003cstrong\u003eRing DAC APEX.\u003c\/strong\u003e dCS's own discrete converter, 48 equal-value current sources switched by an FPGA under a mapping algorithm, in its 2022 hardware revision: a lower-impedance reference supply, a more symmetrical summing stage and a new output stage. \u003ca href=\"\/pages\/dcs-story#tech-dcs-ring-dac-apex\"\u003eThe deep dive\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003cstrong\u003eOne-box front end.\u003c\/strong\u003e Streaming (Mosaic, Roon Ready, Qobuz, TIDAL, Spotify, UPnP, AirPlay), USB, AES and S\/PDIF inputs, upsampling and a digital volume control in the DAC chassis. \u003ca href=\"\/pages\/dcs-story#tech-dcs-upsampling-and-filters\"\u003eUpsampling, filters and Mappers\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003cstrong\u003eRossini Master Clock.\u003c\/strong\u003e Two temperature-compensated crystal oscillators, one per sample-rate family, calibrated in dCS's environmental chamber; three independently buffered word clock outputs; switchable dither. \u003ca href=\"\/pages\/dcs-story#tech-dcs-master-clocking\"\u003eThe deep dive\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003cstrong\u003eRossini Transport.\u003c\/strong\u003e Dual-laser SACD\/CD mechanism; SACD as native DSD; CD as 44.1 or upsampled to DXD, DSD or DSDx2, encrypted for a dCS DAC; locks to the Master Clock. \u003ca href=\"\/pages\/dcs-story#tech-dcs-transports\"\u003eThe deep dive\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003cstrong\u003eDual AES.\u003c\/strong\u003e Two AES cables carry the Transport's high-rate or encrypted DSD output to the DAC. \u003ca href=\"\/pages\/dcs-story#tech-dcs-dual-aes\"\u003eThe deep dive\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003cstrong\u003edCS Expanse.\u003c\/strong\u003e Headphone processing in the DAC's FPGA for owners who feed a headphone amplifier from the Rossini's outputs, added in Rossini 2.1. \u003ca href=\"\/pages\/dcs-story#tech-dcs-expanse\"\u003eThe deep dive\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003cstrong\u003eSoftware-defined.\u003c\/strong\u003e Rossini 2.0 (2019) brought the 6 MHz Mappers; \u003ca href=\"\/pages\/dcs-mosaic-and-mosaic-actus\"\u003eMosaic\u003c\/a\u003e, Expanse and the streaming services arrived as free updates. \u003ca href=\"\/pages\/dcs-story#tech-dcs-digital-processing-platform\"\u003eThe deep dive\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:0 0 8px;font-size:16px\"\u003eFinishes\u003c\/h3\u003e\n\u003cul style=\"list-style:none;margin:0 0 6px;padding:0\"\u003e\n\u003cli style=\"display:flex;align-items:center;gap:10px;margin:0 0 6px\"\u003e\n\u003cspan style=\"flex:0 0 18px;width:18px;height:18px;border-radius:50%;background:#c3c4c6;border:1px solid #d8d5ce\"\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSilver\u003c\/strong\u003e \u003cspan style=\"color:#55524c\"\u003eanodized aluminum\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"display:flex;align-items:center;gap:10px;margin:0 0 6px\"\u003e\n\u003cspan style=\"flex:0 0 18px;width:18px;height:18px;border-radius:50%;background:#1d1d1f;border:1px solid #d8d5ce\"\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eBlack\u003c\/strong\u003e \u003cspan style=\"color:#55524c\"\u003eanodized aluminum\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin:0 0 20px;font-size:13.5px;color:#55524c\"\u003eBoth finishes are the same price; every box in the stack is ordered in the same finish.\u003c\/p\u003e\n\u003cdetails open style=\"border-top:1px solid #080808;margin:0 0 6px\"\u003e\u003csummary style=\"cursor:pointer;padding:12px 0;font-size:16px;font-weight:600\"\u003eSpecifications\u003c\/summary\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;margin:0 0 14px\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px 7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top;width:40%;color:#55524c\"\u003eStack comprises\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003eRossini APEX DAC ($34,500), Rossini Master Clock ($12,100), Rossini Transport ($29,900): $76,500 at dCS's current US list\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px 7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top;width:40%;color:#55524c\"\u003eConverter\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003edCS Ring DAC APEX, stereo, in the Rossini APEX DAC; 48 current sources per channel; 6 MHz on Mappers 1 and 3, 3 MHz on Mapper 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px 7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top;width:40%;color:#55524c\"\u003eSample rates \/ formats\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003ePCM 44.1–384 kS\/s up to 24-bit; DSD64 and DSD128; upsampling in the DAC to DXD, DSD or DSDx2; six PCM filters, DSD filter set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px 7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top;width:40%;color:#55524c\"\u003eStreaming and inputs\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003eEthernet (dCS Mosaic, Roon Ready, Qobuz, TIDAL, Spotify, Deezer, UPnP, AirPlay, internet radio); asynchronous USB-B to 24\/384 and DSD128; USB-A storage; two AES (Dual AES to 384 kS\/s); S\/PDIF on RCA, BNC and Toslink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px 7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top;width:40%;color:#55524c\"\u003eClocking\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003eRossini Master Clock: 44.1 and 48 kHz on three 75 Ω BNC outputs; better than ±1 ppm as shipped, ±0.1 ppm typical once stabilized; two word clock inputs and one output on the DAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px 7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top;width:40%;color:#55524c\"\u003eDisc\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003eRossini Transport: CD and SACD; SACD as encrypted native DSD; CD as 16-bit\/44.1 or upsampled to DXD, DSD or DSDx2; word clock input at 44.1, 88.2 or 176.4 kHz; dCS Universal Remote supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px 7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top;width:40%;color:#55524c\"\u003eAnalog outputs\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003eBalanced XLR and unbalanced RCA at 0.2, 0.6, 2 or 6 V full scale; digital volume control for direct connection to power amplifiers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px 7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top;width:40%;color:#55524c\"\u003eResidual noise\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003eBetter than −113 dB0, 24-bit, 20 Hz–20 kHz (dCS figure)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px 7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top;width:40%;color:#55524c\"\u003eDimensions, each chassis\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003e444 mm wide; DAC 151 mm tall (15.6 kg), Master Clock 64 mm (8.3 kg), Transport 178 mm (20.6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px 7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top;width:40%;color:#55524c\"\u003eCabling\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003eDual AES from the Transport to the DAC; two word clock cables to the DAC and one to the Transport; Ethernet to the DAC. Not included; we quote Nordost Dual AES, 75 Ω clock and Ethernet cables with the stack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/details\u003e\n\u003ch3 style=\"margin:18px 0 8px;font-size:16px\"\u003eReviews\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 20px;padding-left:18px\"\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003ca href=\"https:\/\/stereophile.com\/content\/dcs-rossini-apex-da-processor\" target=\"_blank\" rel=\"noopener\"\u003eStereophile: dCS Rossini APEX D\/A processor\u003c\/a\u003e (Jason Victor Serinus, measurements John Atkinson, 2022)\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003ca href=\"https:\/\/www.stereophile.com\/content\/dcs-rossini-transport-sacdcd-transport\" target=\"_blank\" rel=\"noopener\"\u003eStereophile: dCS Rossini Transport SACD\/CD transport\u003c\/a\u003e (John Atkinson)\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003ca href=\"https:\/\/www.whathifi.com\/reviews\/dcs-rossini-apex-dac\" target=\"_blank\" rel=\"noopener\"\u003eWhat Hi-Fi?: dCS Rossini APEX DAC\u003c\/a\u003e (five stars)\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003ca href=\"https:\/\/stereophile.com\/content\/dcs-rossini-v20-firmware-upgrade\" target=\"_blank\" rel=\"noopener\"\u003eStereophile: dCS Rossini v2.0 firmware upgrade\u003c\/a\u003e (2019)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"padding:16px 18px;background:#f7f6f2;border-left:3px solid #8d1935\"\u003e\n\u003cp style=\"margin:0 0 4px;font-weight:600\"\u003ePlan your dCS system with Pearl Audio\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:14px\"\u003ePearl Audio is an authorized dCS dealer and keeps the Rossini APEX DAC and Master Clock on demonstration in Portland, with the Transport available to order. Ask us to arrange an audition, to hear the stack against the Vivaldi and Varèse in the same room, or to quote the Rossini APEX Player as a two-box alternative. Call \u003ca href=\"tel:+15032222599\"\u003e(503) 222-2599\u003c\/a\u003e or email \u003ca href=\"mailto:sales@pearlaudio.com?subject=dCS%20Rossini%20Stack\"\u003esales@pearlaudio.com\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"dCS","offers":[{"title":"Default Title","offer_id":50911776669794,"sku":null,"price":76500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2475\/2780\/files\/pearl-dcs-rossini-stack-front-v2_a23afc67-0d1f-4f00-a98e-c73e3ac86bb4.jpg?v=1793993089","url":"https:\/\/pearlaudio.com\/products\/dcs-rossini-stack","provider":"Pearl Audio","version":"1.0","type":"link"}