{"product_id":"rega-aos-mc-phono-stage-mc-phono-preamp-preorder-only","title":"Rega AOS MC Adjustable Moving Coil Phono Stage","description":"\u003cstyle\u003e.hos-rega{font:inherit;line-height:1.65;color:inherit;margin:1.6rem 0 2.4rem}.hos-rega h2{font-size:1.65em;line-height:1.25;margin:0 0 1rem}.hos-rega h3{font-size:1.15em;margin:1.4rem 0 .65rem}.hos-rega .hos-kicker{font-size:.78em;letter-spacing:.12em;text-transform:uppercase;margin:0 0 .5rem}.hos-rega .hos-lead{font-size:1.08em}.hos-rega .hos-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:1.5rem}.hos-rega .hos-panel{border-top:1px solid #b9b9b9;padding-top:1rem}.hos-rega a{text-decoration:underline;text-underline-offset:3px}.hos-rega table{border-collapse:collapse;width:100%;font-size:.95em}.hos-rega th,.hos-rega td{text-align:left;vertical-align:top;padding:.7rem;border-bottom:1px solid #ccc}.hos-rega th{font-weight:600}.hos-rega img{max-width:100%;height:auto}.hos-rega .hos-video{aspect-ratio:16\/9;width:100%;border:0}.hos-rega .hos-note{font-size:.9em}.hos-rega ul{padding-left:1.25rem}\u003c\/style\u003e\u003csection class=\"hos-rega\" id=\"hos-rega-guide\"\u003e\u003cp class=\"hos-kicker\"\u003eHouse of Stereo · Rega\u003c\/p\u003e\n\u003ch2\u003eRega AOS MC Adjustable Moving Coil Phono Stage\u003c\/h2\u003e\n\u003cp class=\"hos-lead\"\u003eAOS brings ideas from Rega’s Aura reference stage into a smaller chassis, with gain and loading choices for moving coil cartridges. The point is to give a tiny signal a carefully controlled start.\u003c\/p\u003e\n\u003cdiv class=\"hos-grid\"\u003e\u003cdiv class=\"hos-panel\"\u003e\n\u003ch3\u003eChoosing \u0026amp; connecting\u003c\/h3\u003e\n\u003cp\u003eUse with a suitable low-output MC cartridge, then connect to a line-level input. Resistance options are 70, 100, 150 and 400 ohms; select settings against your cartridge’s requirements.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003cp\u003e\u003cstrong\u003eThe AOS\u003c\/strong\u003e is a dedicated no compromise fully adjustable moving coil pre-amplifier using a circuit design based heavily on our award-winning\u003cspan\u003e \u003c\/span\u003eAura\u003cspan\u003e \u003c\/span\u003ereference MC phono stage.  Housed in a custom made Rega half width case, t\u003cstrong\u003ehe AOS\u003c\/strong\u003e will deliver exceptional definition and greater realism to all of your recordings, bringing your favourite vinyl to life. \u003c\/p\u003e\n\u003cp\u003eDesigned to work with a wide range of moving coil cartridges it has plenty of gain for low output MC’s and excellent load adjustability making it the perfect partner for whichever Moving Coil you are using.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe AOS\u003c\/strong\u003e is a two stage “all analogue amplifier” with no digital control circuitry. The fully aluminium case screens the internal circuit from any stray RFI signals. Our designers have avoided including any unnecessary components or circuits that may degrade the signal path. The AOS incorporates many innovative design ideas including a self-adjusting servo control which compensates for any variations in ambient or operating temperature.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe AOS \u003c\/strong\u003eutilises parallel connected, low noise FETs (Field Effect Transistors) configured as a compound pair. The use of FET transistors ensures there is no bias current flowing in the cartridge coil so as not to upset the delicate magnetic geometry of the cartridge. The MC input has the provision for selecting resistive input loading of 70 Ω to 400 Ω and capacitive loading of 1000 pF to 4300 pF. The input sensitivity can be changed by 6 dB via the back panel. An automatic standby feature has also been added which puts the unit to sleep after a period of no signal. This can be deactivated via dip switches located on the rear panel.\u003c\/p\u003e\n\u003ch2 id=\"Key-Features\" class=\"heading-5 uppercase\"\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"bullet-list green-bullets\"\u003e\n\u003cli\u003eDedicated moving coil phono stage\u003c\/li\u003e\n\u003cli\u003eFully adjustable for loading\u003c\/li\u003e\n\u003cli\u003eFactory pre-set for use with all Rega MC cartridges\u003c\/li\u003e\n\u003cli\u003eCircuit design based on the Reference Aura MC\u003c\/li\u003e\n\u003cli\u003eCustom aluminium design half width case\u003c\/li\u003e\n\u003cli\u003eAutomatic standby function\u003c\/li\u003e\n\u003cli\u003eLifetime warranty\u003cspan\u003e \u003c\/span\u003eagainst manufacture defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"large-10 large-offset-1 xlarge-8 xlarge-offset-2 xxlarge-6 xxlarge-offset-0 xxxlarge-6 cell\" style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0529\/7117\/6085\/files\/Thi_t_k_ch_a_co_ten_2f7dccd4-d535-4886-be44-c46a811fcddf_1024x1024.png?v=1772511195\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"Product-Details\" class=\"large-10 large-offset-1 xlarge-8 xlarge-offset-2 xxlarge-6 xxlarge-offset-0 cell\"\u003e\n\u003cdiv class=\"grid-x grid-margin-x\" style=\"text-align: center;\"\u003e\n\u003cdiv class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eFirst Stage:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eThe first stage is a symmetrical, complementary class A amplifier, using Linear Systems ultra-low noise FET (Field Effect Transistor) transistors. The use of FET transistors ensures there is no bias current flowing in the cartridge coil so as not to upset the delicate magnetic geometry of the cartridge. The input circuit configuration also alleviates the use of any coupling components between the cartridge output and the input stage FET transistors, which would degrade the sound. The complementary ultra-low noise FET transistors are carefully graded and matched for optimum performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: left;\"\u003e This stage drives the passive high-frequency part of the RIAA equalisation stage. The complementary ultra-low noise FET transistors are carefully graded and matched for optimum performance. This stage drives the passive high-frequency part of the RIAA equalisation stage.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eSecond Stage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe second stage is a symmetrical, class A, differential amplifier with a common base driver stage; this is also used as the active amplifier in the low-frequency part of the RIAA equalisation stage.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0529\/7117\/6085\/files\/AOS_hero_3__1__1_1024x1024.jpg?v=1772509220\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cstrong\u003eInput Load: \u003c\/strong\u003e70, 100, 150, \u0026amp; 400Ω\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cstrong\u003eCapacitive Load: \u003c\/strong\u003e1000, 4300pF\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cstrong\u003eRIAA Accuracy (100kΩ output load): \u003c\/strong\u003eBetter than ±0.2dB 65Hz to 70kHz\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cstrong\u003eFrequency Response: \u003c\/strong\u003e17.5 Hz (-3 dB) to 100 kHz (-0.2 dB)\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cstrong\u003eTHD:\u003c\/strong\u003e 0.03%\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cstrong\u003eInput Sensitivity:\u003c\/strong\u003e 69.3 dB (Gain Setting I), 63.5 dB (Gain Setting II)\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cstrong\u003ePower consumption in Standby: \u003c\/strong\u003e0.4W\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cstrong\u003ePower Consumption: \u003c\/strong\u003e20W\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cstrong\u003eDimensions (WxHxD): \u003c\/strong\u003e220 x 80 x 330 mm\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003cstrong\u003eWeight: \u003c\/strong\u003e2.9Kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center;\" class=\"xxxlarge-6 cell module-2-content\"\u003e\n\u003ch2 style=\"text-align: left;\" id=\"Load-Settings\" class=\"heading-5 uppercase\"\u003eLoad settings for adjustable MC stages\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cstrong\u003eGain (0dB high gain setting):\u003c\/strong\u003e 69.3dB at 1kHz\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cstrong\u003eGain (-6dB low gain setting): \u003c\/strong\u003e63.5dB at 1kHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"heading-5 uppercase\" id=\"User-Manuals\" style=\"text-align: left;\"\u003eUser Manual Downloads\u003c\/h2\u003e\n\u003cul class=\"no-bullet downloads-list\"\u003e\n\u003cli class=\"downloads-list__item\" style=\"text-align: left;\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_EN_-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC User manual ENG\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e925\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"downloads-list__item\" style=\"text-align: left;\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_DE_-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC User manual DE\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e920\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"downloads-list__item\" style=\"text-align: left;\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_DK_-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC User manual DK\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e915\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"downloads-list__item\" style=\"text-align: left;\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_ES_-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC User manual ES\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e931\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"downloads-list__item\" style=\"text-align: left;\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_FR-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC User manual FR\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e918\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"downloads-list__item\" style=\"text-align: left;\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_IT_-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC User manual IT\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e931\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"downloads-list__item\" style=\"text-align: left;\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_NL_-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC User manual NL\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e916\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"downloads-list__item\" style=\"text-align: left;\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_PL_-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC User manual PL\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e935\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"downloads-list__item\" style=\"text-align: left;\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_PT_-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC User manual PT\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e918\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"downloads-list__item\" style=\"text-align: left;\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_SW_-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC User manual SW\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e915\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: left;\" class=\"heading-5 uppercase\" id=\"Environmental-Labelling\"\u003eEnvironmental Labelling of Packaging\u003c\/h2\u003e\n\u003cul class=\"no-bullet downloads-list\"\u003e\n\u003cli style=\"text-align: left;\" class=\"downloads-list__item\"\u003e\n\u003ca href=\"https:\/\/www.rega.co.uk\/environmental-labelling-of-packaging\/Environmental_Labelling_of_Packaging_-_AOS_MC_Italy.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAOS MC environmental labelling of packaging\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"small nowrap\"\u003e119\u003cabbr title=\"Kilobytes\"\u003eKB\u003c\/abbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"uppercase\"\u003epdf\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003csection class=\"hos-rega\" id=\"hos-rega-resources\"\u003e\u003ch3\u003eDocuments \u0026amp; further reading\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_EN_-_Ver_3.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAos MC - User Manual EN - Ver 3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.rega.co.uk\/download\/Aos_MC_-_User_Manual_-_SW_-_Ver_3.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAos MC User manual SW - Ver 3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.rega.co.uk\/pdf\/hi-fi%2B_259_Review_Rega_FIX.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eHi Fi+ September 2026\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.avforums.com\/reviews\/rega-aos-phono-stage-review.23388\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAV Forums April 2026\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.rega.co.uk\/products\/aos-mc\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRega specifications and support\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Rega","offers":[{"title":"Default Title","offer_id":47030471917717,"sku":null,"price":3398.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/7117\/6085\/files\/AOS_hero_2.jpg__1.jpg?v=1772509220","url":"https:\/\/houseofstereo.com\/es-ca\/products\/rega-aos-mc-phono-stage-mc-phono-preamp-preorder-only","provider":"House Of Stereo","version":"1.0","type":"link"}