{"title":"Moonriver","description":"\u003cp\u003eMoonriver Audio makes three products. That is the whole catalog: the \u003ca href=\"\/products\/moonriver-audio-model-404-integrated-amplifier\"\u003e404 integrated amplifier\u003c\/a\u003e, the \u003ca href=\"\/products\/moonriver-audio-model-404-reference-integrated-amplifier\"\u003e404 Reference\u003c\/a\u003e above it, and the \u003ca href=\"\/products\/moonriver-audio-505-hybrid-phono-stage\"\u003e505 hybrid phono stage\u003c\/a\u003e. For a company in Malmö whose products are designed and made in Sweden and hand-assembled one at a time, this looks less like a limitation than a decision.\u003c\/p\u003e\n\u003cp\u003eWhat the restraint buys is visible once the lid comes off — and the lid is meant to come off. The analog circuits are built with through-hole components rather than surface-mount, the preamplifier stage is fully discrete, and the power amplifier runs dual-mono from separate windings on the transformer. Both the top and bottom panels are removable, which is a serviceability choice almost nobody makes any more.\u003c\/p\u003e\n\u003cp\u003eThe power supplies are the other tell. The 404 Reference runs five separate supplies with individual overload protection and 107,000µF of total capacitance, 21,000µF of which is reserved for the preamplifier alone. The 505 phono stage uses six supplies and dual-mono construction, and offers four inputs, gain from 34 to 72dB, selectable loading, and RIAA, Decca, and Columbia equalisation curves — which is a specification you would expect on something several times its size.\u003c\/p\u003e\n\u003cp\u003eThe amplifiers are modular as well. Two of the line inputs accept optional plug-in boards: moving magnet phono, switchable moving magnet and moving coil, or a digital board with S\/PDIF or USB. The company covers its products for three years and expects them to run for decades without maintenance.\u003c\/p\u003e\n\u003cp\u003eAn amplifier this unfussy suits an honest pair of loudspeakers — hear it with \u003ca href=\"\/collections\/mofi\"\u003eMoFi\u003c\/a\u003e or \u003ca href=\"\/collections\/rega\"\u003eRega\u003c\/a\u003e speakers, or a turntable from \u003ca href=\"\/collections\/music-hall\"\u003eMusic Hall\u003c\/a\u003e up front. \u003ca href=\"\/pages\/contact\"\u003eArrange a listen\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"moonriver-audio-model-404-integrated-amplifier","title":"Moonriver Audio Model 404 Integrated Amplifier","description":"\u003cp\u003eThe Model 404 is Moonriver Audio's Swedish-built integrated amplifier, the outcome of three years of research and hand-assembled in Sweden. It pairs a fully discrete preamp section with a dual-mono power stage fed by five separate power supplies, delivering 50 watts per channel into 8 ohms, with volume attenuation handled by the blue ALPS potentiometer. Its modular architecture accepts an optional MM or MM\/MC phono stage and an optional DAC module, while classic touches such as balance control, a stereo\/mono switch and a tape monitor loop are retained by design. The chassis pairs massive aluminium knobs with solid walnut cheeks, and through-hole components are used throughout the analog circuits.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003ePower output\u003c\/th\u003e\n\u003ctd\u003e50 W per channel into 8 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e10 Hz to 50 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eTotal harmonic distortion\u003c\/th\u003e\n\u003ctd\u003e0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eSignal-to-noise ratio\u003c\/th\u003e\n\u003ctd\u003e85 dB (line)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eInputs\u003c\/th\u003e\n\u003ctd\u003e5 (line 1 and 4 optionally occupied by phono stage and USB DAC, 1 x tape loop)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e430 (W) x 390 (D) x 135 (H) mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e12 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOptions \u0026amp; Upgrades\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em;font-weight:400\"\u003ePhono stage module, MM\u003cbr\u003e\u003csmall\u003eFactory-fitted moving magnet phono input\u003c\/small\u003e\n\u003c\/th\u003e\n\u003ctd style=\"white-space:nowrap\"\u003e+$689\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em;font-weight:400\"\u003ePhono stage module, MC\/MM\u003cbr\u003e\u003csmall\u003eFactory-fitted moving coil \/ moving magnet phono input\u003c\/small\u003e\n\u003c\/th\u003e\n\u003ctd style=\"white-space:nowrap\"\u003e+$849\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em;font-weight:400\"\u003eSPDIF DAC module\u003cbr\u003e\u003csmall\u003eDSD and MQA support, up to 24-bit\/192kHz\u003c\/small\u003e\n\u003c\/th\u003e\n\u003ctd style=\"white-space:nowrap\"\u003e+$999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003csmall\u003ePrices shown are for the base configuration. Ask us about options and factory upgrades when you visit.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCall or visit the showroom about availability.\u003c\/strong\u003e Contact our team for pricing, a demonstration, or system design — \u003ca href=\"\/pages\/contact\"\u003eget in touch\u003c\/a\u003e.\u003c\/p\u003e","brand":"Moonriver","offers":[{"title":"Default Title","offer_id":50417950392513,"sku":null,"price":5499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0869\/8340\/9857\/files\/Moonriver_404_Side_White_3K.jpg?v=1785024673"},{"product_id":"moonriver-audio-model-404-reference-integrated-amplifier","title":"Moonriver Audio Model 404 Reference Integrated Amplifier","description":"\u003cp\u003eThe Model 404 Reference builds on the design platform of the standard Model 404, with the power supply section improved to the maximum. Total capacitance rises from 57,000 uF to 107,000 uF, of which 21,000 uF is reserved for the preamp alone, and WBT nextgen speaker terminals carry the output stage's current to even difficult-to-drive loudspeakers. The chassis adds absorbent materials and better integral mechanical support to further reduce resonant vibration, while the fully discrete preamp, dual-mono power amplifier, balance control, stereo\/mono switch and tape monitor loop carry over. It holds a place in Stereophile's Class A Recommended Components and accepts the same optional phono stage and DAC modules as its sibling.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003ePower output\u003c\/th\u003e\n\u003ctd\u003e50 W per channel into 8 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e10 Hz to 50 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eTotal harmonic distortion\u003c\/th\u003e\n\u003ctd\u003e0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003ePower supply capacitance\u003c\/th\u003e\n\u003ctd\u003e107,000 uF total (21,000 uF reserved for the preamp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eSpeaker terminals\u003c\/th\u003e\n\u003ctd\u003eWBT nextgen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e430 (W) x 390 (D) x 135 (H) mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e13 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOptions \u0026amp; Upgrades\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em;font-weight:400\"\u003ePhono stage module, MM\u003cbr\u003e\u003csmall\u003eFactory-fitted moving magnet phono input\u003c\/small\u003e\n\u003c\/th\u003e\n\u003ctd style=\"white-space:nowrap\"\u003e+$689\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em;font-weight:400\"\u003ePhono stage module, MC\/MM\u003cbr\u003e\u003csmall\u003eFactory-fitted moving coil \/ moving magnet phono input\u003c\/small\u003e\n\u003c\/th\u003e\n\u003ctd style=\"white-space:nowrap\"\u003e+$849\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em;font-weight:400\"\u003eSPDIF DAC module\u003cbr\u003e\u003csmall\u003eDSD and MQA support, up to 24-bit\/192kHz\u003c\/small\u003e\n\u003c\/th\u003e\n\u003ctd style=\"white-space:nowrap\"\u003e+$999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003csmall\u003ePrices shown are for the base configuration. Ask us about options and factory upgrades when you visit.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCall or visit the showroom about availability.\u003c\/strong\u003e Contact our team for pricing, a demonstration, or system design — \u003ca href=\"\/pages\/contact\"\u003eget in touch\u003c\/a\u003e.\u003c\/p\u003e","brand":"Moonriver","offers":[{"title":"Default Title","offer_id":50417950425281,"sku":null,"price":6599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0869\/8340\/9857\/files\/Moonriver_404_Reference_Side_2560.jpg?v=1785024674"},{"product_id":"moonriver-audio-505-hybrid-phono-stage","title":"Moonriver Audio 505 Hybrid Phono Stage","description":"\u003cp\u003eThe 505 is Moonriver Audio's hybrid phono stage, combining low-noise IC op-amps with discrete solid-state circuits in a dual-mono layout fed by six separate power supplies totalling 70,000 uF of capacitance. Four inputs accommodate multiple turntables, tonearms and cartridges, and every adjustment — twelve gain settings from 34 to 72 dB, MM capacitance, MC and MM loading, and RIAA or Decca\/Columbia 78 rpm equalisation — is made on the fly with dedicated knobs and switches. A microcontroller silently stores the chosen settings for each input and recalls them automatically, and the passive de-emphasis EQ is built from very low tolerance components. Designed and hand-assembled in Sweden, it wears the house style of oversized aluminium knobs and solid walnut cheeks.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eInputs\u003c\/th\u003e\n\u003ctd\u003e4, XLR and RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eGain range\u003c\/th\u003e\n\u003ctd\u003e34 dB to 72 dB (6 MM and 6 MC settings)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eMM capacitance settings\u003c\/th\u003e\n\u003ctd\u003e100, 220, 330, 470, 680 pF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eMC load impedance\u003c\/th\u003e\n\u003ctd\u003e10, 47, 100, 470, 1k ohms and custom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eEQ curves\u003c\/th\u003e\n\u003ctd\u003eRIAA and Decca or Columbia (78 rpm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e430 (W) x 390 (D) x 135 (H) mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e12 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eCall or visit the showroom about availability.\u003c\/strong\u003e Contact our team for pricing, a demonstration, or system design — \u003ca href=\"\/pages\/contact\"\u003eget in touch\u003c\/a\u003e.\u003c\/p\u003e","brand":"Moonriver","offers":[{"title":"Default Title","offer_id":50417950458049,"sku":null,"price":6599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0869\/8340\/9857\/files\/Moonriver_505_Side_Zoom.jpg?v=1785024675"}],"url":"https:\/\/soundsanctuaryaustin.com\/collections\/moonriver.oembed","provider":"Sound Sanctuary Austin","version":"1.0","type":"link"}