{"product_id":"820s-power-supply","title":"820S Power Supply","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\"\u003eMOON · Reference\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;font-size:18px;line-height:1.45;font-weight:600\"\u003eThe 820S is MOON's external power supply: two custom toroidal transformers and four stages of M-R2S regulation that replace the internal supplies of up to two MOON components at once.\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\"\u003ePrice is for one unit.\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\"\u003e2 units\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px;color:#55524c;line-height:1.35;margin-top:3px\"\u003epowered simultaneously\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\"\u003e2 transformers\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px;color:#55524c;line-height:1.35;margin-top:3px\"\u003eseparate analog and digital supplies\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\"\u003e40,000 µF\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px;color:#55524c;line-height:1.35;margin-top:3px\"\u003efiltering per supply\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\"\u003e4 stages\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px;color:#55524c;line-height:1.35;margin-top:3px\"\u003eM-R2S discrete regulation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0 0 12px\"\u003eThe 820S moves the power supply, the noisiest part of any component, into its own chassis. Two custom toroidal transformers feed separate analog and digital supplies; each passes through two pi-type filters with 40,000 µF of capacitance and dual 20 mH chokes, then four stages of MOON's M-R2S discrete regulation, built from precision references and transistor amplifiers rather than a single regulator chip. Two sets of outputs let one 820S power two components, and the DC cables for both are included.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 20px\"\u003eThe 820S is compatible with the North Collection 681, 791 and 891 as well as the 810LP and 610LP phono preamplifiers. TONEAudio's Jeff Dorgay concluded that \"even if you only pair the 820S with one component, the upgrade is substantial enough to invest.\" It is the final step for a system built around a 791 or 891 that is already in place.\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\u003eDual toroidal transformers.\u003c\/strong\u003e Separate analog and digital supplies with lower magnetic, electrical and thermal losses.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003cstrong\u003ePi-type filtering.\u003c\/strong\u003e Two filters per supply: 4 × 10,000 µF plus 2 × 20 mH chokes to remove AC noise after rectification.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003cstrong\u003eM-R2S regulation.\u003c\/strong\u003e Four stages of MOON's proprietary discrete voltage regulation on each supply.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\n\u003cstrong\u003eTwo outputs.\u003c\/strong\u003e Powers two compatible components at once; 4-pin and 5-pin XLR DC cables included.\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:#1d1d1f;border:1px solid #d8d5ce\"\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eBlack\u003c\/strong\u003e \u003cspan style=\"color:#55524c\"\u003eblack anodized 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:#c3c4c6;border:1px solid #d8d5ce\"\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSilver\u003c\/strong\u003e \u003cspan style=\"color:#55524c\"\u003esilver anodized 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:linear-gradient(90deg,#1d1d1f 50%,#c3c4c6 50%);border:1px solid #d8d5ce\"\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e2-Tone\u003c\/strong\u003e \u003cspan style=\"color:#55524c\"\u003eblack chassis with silver cheeks\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\"\u003eBlack, Silver and 2-Tone are MOON's standard finishes and carry the same price. Choose your finish under Options and pricing above.\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\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003eExternal power supply, analog and digital sections\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\"\u003eCompatible components\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003e681, 791, 891, 810LP, 610LP (two at once)\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\"\u003eTransformers\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003e2 custom toroidal\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\"\u003eFiltering\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003e2 pi-type filters per supply; 40,000 µF; 2 × 20 mH chokes\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\"\u003eRegulation\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003e4 stages M-R2S per supply\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\"\u003eCircuit boards\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003e4-layer, pure copper traces\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\"\u003eIn the box\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003e2 × 4-pin XLR and 2 × 5-pin XLR DC cables\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\"\u003eWidth\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003e19 in (48 cm)\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\"\u003eShipping weight\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border-bottom:1px solid #d8d5ce;vertical-align:top\"\u003e40 lb (18 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp style=\"margin:0 0 14px;font-size:13px\"\u003e\u003ca href=\"https:\/\/simaudio.com\/en\/product\/820s-power-supply\/\" target=\"_blank\" rel=\"noopener\"\u003eMOON 820S product page and specifications\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-top:1px solid #080808;border-bottom:1px solid #080808;margin:0 0 22px\"\u003e\u003csummary style=\"cursor:pointer;padding:12px 0;font-size:16px;font-weight:600\"\u003eWhere it sits in the range\u003c\/summary\u003e\u003cdiv style=\"padding:0 0 14px\"\u003e\n\u003cp style=\"margin:0 0 8px\"\u003eThe 820S upgrades these MOON components:\u003c\/p\u003e\n\u003cul style=\"margin:0;padding-left:18px\"\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/681-network-player-dac\"\u003eMOON 681 Network Player \/ DAC\u003c\/a\u003e: North Collection streamer \/ DAC\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/791-network-player-preamplifier\"\u003eMOON 791 Network Player \/ Preamplifier\u003c\/a\u003e: North Collection streaming preamplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/891-network-player-preamplifier\"\u003eMOON 891 Network Player \/ Preamplifier\u003c\/a\u003e: reference streaming preamplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/610lp-phono-preamplifier\"\u003eMOON 610LP Phono Preamplifier\u003c\/a\u003e: balanced phono preamplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/810lp-phono-preamplifier\"\u003eMOON 810LP Phono Preamplifier\u003c\/a\u003e: reference phono preamplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMOON 820S Power Supply\u003c\/strong\u003e (this model)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003ch3 style=\"margin:0 0 8px;font-size:16px\"\u003eReviews\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 22px;padding-left:18px\"\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\nTONEAudio: MOON 820S power supply (Jeff Dorgay)\u003c\/li\u003e\n\u003cli style=\"margin:0 0 5px\"\u003e\nPositive Feedback: MOON 740P and 820S (Will Wright, March 2022)\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 MOON system with Pearl Audio\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:14px\"\u003ePearl Audio is an authorized MOON dealer. We can confirm compatibility with your MOON components and arrange installation. Call \u003ca href=\"tel:+15032222599\"\u003e(503) 222-2599\u003c\/a\u003e or email \u003ca href=\"mailto:sales@pearlaudio.com?subject=MOON%20820S\"\u003esales@pearlaudio.com\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"MOON","offers":[{"title":"Black","offer_id":50784262422626,"sku":null,"price":8500.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":50784262455394,"sku":null,"price":8500.0,"currency_code":"USD","in_stock":true},{"title":"2-Tone","offer_id":50784262488162,"sku":null,"price":8500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2475\/2780\/files\/820S_Product_Image.jpg?v=1793171221","url":"https:\/\/pearlaudio.com\/products\/820s-power-supply","provider":"Pearl Audio","version":"1.0","type":"link"}