{"title":"Moonriver | Authorised Dealer INDIA | The Audio Co","description":"Shop premium Moonriver audio products in India with Free Shipping, Official Warranty, Customer Support and GST Billing. Explore our complete range of Moonriver audio equipment.","products":[{"product_id":"moonriver-404-integrated-amplifier","title":"Moonriver 404 Integrated Amplifier","description":"\u003ch2\u003eThe Moonriver Model 404 represents three years of meticulous engineering aimed at delivering exceptional sonic performance across all price points. This integrated amplifier uncovers nuanced details and textural richness from any audio source, limited only by your speakers and listening environment. A robust power supply with independent rails ensures consistent, authoritative delivery throughout the signal chain. The fully discrete preamp section captures dynamic subtleties with precision, while the custom-optimized output stage maintains neutral character and transient accuracy. Carefully selected components preserve tonal purity and naturalness along the shortest signal path. Beyond amplification, the 404 integrates a dedicated phono stage, USB DAC, dual preamp outputs, and tape monitor loop—offering the flexibility and connectivity expected of a truly versatile integrated amplifier.\u003c\/h2\u003e\n\u003cp\u003eMoonriver Model 404 is the outcome of a 3-year research, the aim being to achieve incredible performance regardless of price range. The 404 amplifier will extract hidden elements and render textures from within any audio format, with the source, speakers and room to set the limits. Its culture will suit all music, as the Model 404 is by design set to define the faintest nuances of which tone integrity is composed.\u003c\/p\u003e\n\u003cp\u003eA hefty supply section ensures that ample healthy power is available at all times at all stages through separate rails. A fully discrete preamp section serves for acute dynamic awareness, while a high output stage that is custom-optimized for bandwidth and distortion warrants for neutral predisposition and transient fidelity. A laborious selection of components armors the design against tonal alteration, pretentious or not, thus preserving naturalness throughout the shortest feasible path.\u003c\/p\u003e\n\u003cp\u003eFurthermore, an integrated phono stage, a USB DAC, two preamp outputs and a tape monitor loop expand functionality to form an ideally flexible integrated amplifier.\u003c\/p\u003e\n\u003ch4\u003eDesign \u0026amp; Ergonomics\u003c\/h4\u003e\n\u003cp\u003eWe had a very clear vision when we conceived the Moonriver 404 amplifier: Classic design with a modern touch; high quality materials such as massive aluminum knobs, solid walnut cheeks, sturdy enclosure; ergonomic user interface.\u003c\/p\u003e\n\u003cp\u003eThere are no “shaved” aesthetics here, no display with complicated serial menus and hidden functions, nor a single multi-function knob for “minimalistic” purposes.\u003cbr\u003eThe heart of Model 404 is pure and minimal but the interface is user oriented and easy to operate by anyone in seconds with no need to resort to the user manual. Four knobs and three switches give direct access to any function.\u003c\/p\u003e\n\u003cdiv class=\"wpb_column pos-top pos-center align_left column_child col-lg-8 boomapps_vccolumn single-internal-gutter\"\u003e\n\u003cdiv class=\"uncol style-light\"\u003e\n\u003cdiv class=\"uncoltable\"\u003e\n\u003cdiv class=\"uncell  boomapps_vccolumn no-block-padding\"\u003e\n\u003cdiv class=\"uncont\"\u003e\n\u003cdiv class=\"uncode_text_column\"\u003e\n\u003ch4\u003eModular Architecture\u003c\/h4\u003e\n\u003cp\u003eMoonriver 404 amplifier is modular by nature; it can accommodate an MM or MM\/MC phono stage and a USB asynchronous DAC.  Fitting these modules is simple and can take place at any time, on or after purchase.  The USB DAC may also be upgraded with a newer version to meet future needs.\u003c\/p\u003e\n\u003ch4\u003eBalance Control\u003c\/h4\u003e\n\u003cp\u003eYou may find this feature to be vanishingly scarce in audiophile products as a result of today’s “minimalist” design mentality and the various myths accompanying it. However, balance control addresses a common problem; speakers that are positioned in asymmetry, in a non-balanced room environment. It thus provides the simplest tweak towards achieving a proper sound stage.\u003c\/p\u003e\n\u003cp\u003eLiving rooms and house furniture are meant to serve everyday life and may not be provisioned with an ideal listening spot, evenly distanced from each speaker to form an equilateral triangle. It is also not uncommon for one speaker to have to be placed nearer room boundaries than the other, having various frequencies boosted in a more or less predictable pattern. More often than not, balance control would come in handy in that it drastically helps overcoming volume level unevenness and in some cases even reclaiming stereo effect and the resulting focused sound stage.\u003c\/p\u003e\n\u003cp\u003eAs expected, the way balance control is implemented on the Moonriver 404 amplifier, in parallel, will not degrade or affect the signal in any way determinable.\u003c\/p\u003e\n\u003ch4\u003eDiscovering the layout\u003c\/h4\u003e\n\u003cp\u003eModel 404 incorporates no less than 5 separate power supplies, each featuring overload protection. The power amplifier specifically runs on a dual mono configuration, beginning from separate windings on the toroidal transformer.\u003c\/p\u003e\n\u003cp\u003eSignal switches are implemented via relays, while volume attenuation is trusted on the legendary blue ALPS pot.\u003c\/p\u003e\n\u003cp\u003eA soft start circuit based on a 30A relay ensures that even the on\/off switch is thought out to work with virtually no burden or wear for decades.\u003c\/p\u003e\n\u003cp\u003eComponents are carefully selected for both suitability and reliability. We make no use of surface-mount in analog circuits, despite the fact that through-hole costs more and requires advanced space management \u0026amp; layout strategies.\u003c\/p\u003e\n\u003cp\u003eEach element utilized has to be of proven stability and sustained higher performance -proficient implementation provided- before making it into our analog paths.\u003c\/p\u003e\n\u003cp\u003eAs for the sound, we are not to say whether Model 404 is virtually transparent or inherently forgiving. Voicing it to appreciate the playlist and respect the user at all times has been the sum of all of our effort;\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ea sincere effort to achieve effortlessness.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wpb_column pos-top pos-center align_left column_child col-lg-4 boomapps_vccolumn single-internal-gutter\"\u003e\n\u003cdiv class=\"uncol style-light\"\u003e\n\u003cdiv class=\"uncoltable\"\u003e\n\u003cdiv class=\"uncell  boomapps_vccolumn no-block-padding\"\u003e\n\u003cdiv class=\"uncont\"\u003e\n\u003cdiv class=\"uncode_text_column\"\u003e\n\u003ch4\u003eThe Importance of Tape Monitor Loop\u003c\/h4\u003e\n\u003cp\u003eProbably most of today’s manufacturers reject the idea of their product featuring a tape loop. At Moonriver Audio, we have concluded that the tape monitor loop is essential. Not only does it add the option of monitoring the difference between recorded and source material at a real time.\u003c\/p\u003e\n\u003cp\u003eIt also, and most importantly, makes possible to insert to the chain -at will- a digital or analog room correction processor, a buffer, a noise reduction system or any other line device available to improve the sound of connected sources.\u003c\/p\u003e\n\u003ch4\u003eStereo\/Mono Switch\u003c\/h4\u003e\n\u003cp\u003eThe pristine era of analog recording being long gone, features like the stereo\/mono switch have been gradually chased out into obsolescence. Who wants to go back to one when they have two channels? “Less is more” and “more is better”. Well…\u003c\/p\u003e\n\u003cp\u003eAs vinyl record revamping climaxes, whether a modern rage, a fashion thing or a real movement, countless monaural pressings emerge out there, often along with their digital… image. Too many of them, among others waiting to be rediscovered, have currently become collector’s items, 78 rpm direct-cut gems being no exception. This is not unreasonable, as what happened between say the 30s and the 80s in terms of both musical interpretation and recording technique is by many considered to be “most of the music” – this sentence doing perhaps no justice to stunning actual developments in creation and reproduction. Stereo\/mono switch gives you the chance to enjoy recording art milestones with respect to how they were initially intended to please; in genuine mono, 2-channel, doing away with artificial phase discrepancies induced by mandatory stereo mode.\u003c\/p\u003e\n\u003cp\u003eSo, “less” may well be “more”, but better is to have a choice.\u003c\/p\u003e\n\u003ch4\u003eOptional Phono Stage\u003c\/h4\u003e\n\u003cp\u003eModel 404 comes with two options in the phono stage department; one is MM only and the other is MM\/MC selectable. Both follow the exact quality principles that Model 404 is built on. Quality components and massive power supplies are also employed here, to efficiently accommodate very low noise, high performance op-amps.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe gain in the MM\/MC phono can be adjusted, simply by changing the dip switches position. The MC input load can be set also, by replacing the original 100 Ohm input resistor with a higher or lower value. No soldering is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eOptional SPDIF DAC\u003c\/h4\u003e\n\u003cp\u003eThe add-on dac module is based on the 9000 series ESS Sabre dac chip. The SPDIF supports PCM streams up to 192kHz\/24bit due to the limitation of the SPDIF (coaxial) specifications. There are 3 separated power supplies with very low noise regulators, 2 for the ESS dac board and 1 for the analog circuit. The capacitor bank is massive and it uses 42000uF (in case of 404 Reference) from the power amplifier’s power supply.\u003c\/p\u003e\n\u003cp\u003eSpecially care has been given to the voicing of the analog output stage to match the dynamic and natural character of Moonriver sound. The result is an impressive sounding digital-to-analog converter which respects the timing, the space and the color of the music and unfolds the dynamic contrast – the definition of every musical event.\u003c\/p\u003e\n\u003ch4\u003eOptional USB DAC\u003c\/h4\u003e\n\u003cp\u003eWhat was desired for our USB DAC module was not to make an addition rather than an omission; instead we had to be confident of substantially raising the true value and functionality of Model 404.\u003c\/p\u003e\n\u003cp\u003eThe add-on USB dac module is also based on the 9000 series ESS Sabre dac chip with native DSD support. The USB dac supports PCM up to 384kHz\/24bi and DSD up to 128. The USB input section is separated with discrete, very low drift clocks, XMOS input based chip with custom firmware. There are 5 separated power supplies with very low noise regulators, 2 for the USB board, 2 for the ESS dac board and 1 for the analog circuit. Specially care has been given to the voicing of the analog output stage to match the dynamic and natural character of Moonriver sound. The capacitor bank is massive and it uses 42000uF (in case of 404 Reference) from the power amplifier’s power supply.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5\u003eFeatures\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e50W x 2 @ 8 Ohms\u003c\/li\u003e\n\u003cli\u003ePure, Minimal Design and Ergonomics\u003c\/li\u003e\n\u003cli\u003eModular Architecture, Optional Phono and DAC modules\u003c\/li\u003e\n\u003cli\u003eMade in Sweden\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eInputs: 5 (line 1 and 4 optionally occupied by phono stage and USB DAC respectively, 1 x tape loop)\u003c\/li\u003e\n\u003cli\u003eOutputs: 2 x preamp out, 1 x rec out\u003c\/li\u003e\n\u003cli\u003eMax output power: 50 W per channel into 8 Ω\u003c\/li\u003e\n\u003cli\u003eFrequency response: 10 Hz to 50 kHz\u003c\/li\u003e\n\u003cli\u003eTotal harmonic distortion: 0.05%\u003c\/li\u003e\n\u003cli\u003eSignal to noise ratio: 85 dB (line)\u003c\/li\u003e\n\u003cli\u003eIdle Consumption: 22 Watts\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 430 (W) x 390 (D) x 135 (H)\u003c\/li\u003e\n\u003cli\u003eWeight: 12 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAwards \u0026amp; Reviews\u003c\/h5\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/theaudio.co\/cdn\/shop\/files\/moonriver-404-integrated-amplifier-theaudioco-477.webp?v=1771579333\" alt=\"Moonriver 404 Integrated Amplifier - Integrated Amplifier\" width=\"202\" height=\"99\" data-original=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1867\/3055\/files\/image_2026-02-20_142236702.png?v=1771577676\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch5\u003eSupport\u003cbr\u003e\n\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/drive.google.com\/file\/d\/1wfpXH8c76z2mCfYP1RfSfjvqB1dweccL\/view?usp=sharing\" title=\"Moonriver 404 flyer_web.pdf - google drive\" aria-label=\"Visit a webpage about Moonriver 404 flyer_web.pdf - google drive\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Manual\" href=\"https:\/\/drive.google.com\/file\/d\/1D7a0iYQQohfSVqJX_DyGVB_mpPBNcjP3\/view?usp=sharing\" aria-label=\"Visit a webpage about Manual\" target=\"_blank\"\u003eManual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Moonriver","offers":[{"title":"Default Title","offer_id":44068519772243,"sku":null,"price":439900.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1867\/3055\/files\/moonriver-404-integrated-amplifier-theaudioco-838.webp?v=1774958297"},{"product_id":"moonriver-404-reference-integrated-amplifier","title":"Moonriver 404 Reference Integrated Amplifier","description":"\u003ch2\u003eThe Moonriver 404 Reference Integrated Amplifier represents a refined evolution of an acclaimed design, engineered to unlock nuanced detail across all music genres. Building upon the Standard 404's proven platform, the Reference model elevates performance through a substantially upgraded power supply—doubling capacitance to 107,000µF with 21,000µF dedicated to the preamp stage alone. This enhancement delivers commanding dynamics, articulate bass authority, and a expansive soundstage with crystalline instrument separation. A fully discrete preamp architecture paired with a custom-optimized high output stage ensures neutral character and transient precision, while a carefully curated component selection preserves tonal authenticity across the signal path. Despite moderate power output, the 404 Reference drives virtually any speaker with confidence, limited only by your source and room. Integrated phono stage, USB DAC, dual preamp outputs, and tape monitor loop provide comprehensive connectivity for modern and analog sources alike.\u003c\/h2\u003e\n\u003cp\u003eFollowing the runaway success of The Moonriver Model 404 (Standard), we decided to move a step further by improving on the already excellent design platform of the Standard 404 model. The Moonriver Model 404 Reference achieves even better performance over the Standard Model, while retaining a sensible price point.\u003c\/p\u003e\n\u003cp\u003eJust like the Standard Model 404, the 404 Reference amplifier will extract hidden elements, and render textures from within any audio format; but with the capability to drive any speaker on the market – despite its moderate power. Only the source, speakers and room will set the performance limit. Its culture will suit all music, as the Model 404 is by design, set to define the faintest nuances of which tonal integrity is composed.\u003c\/p\u003e\n\u003cp\u003eThe power supply section has been improved to the maximum. The 404 standard uses a total of 57000uf capacitance. The 404 Reference lifts the capacitance to a spectacular 107000uf of which 21000 of them are reserved for the preamp only.  This enormous increment expands the driving behaviour; the dynamic character; digs out more detail; low level information; a deeper and more articulate soundtstage; space between instruments is vast, while the bass has greater authority and is more confident than ever before.\u003c\/p\u003e\n\u003cp\u003eThe texture of each individual instrument is exposed exponentially in comparison with the Standard version. A fully discrete preamp section serves to provide acute dynamic awareness, while a high output stage that is custom-optimised for bandwidth and distortion, gives neutral character and transient fidelity. A sophisticated selection of components fuses the design against tonal traits, therefore preserving naturalness throughout the shortest feasible signal path.\u003c\/p\u003e\n\u003cp\u003eFurthermore, an integrated phono stage, USB DAC, (two) preamp outputs and a tape monitor loop expand functionality to form an ideally flexible integrated amplifier.\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eDesign \u0026amp; Ergonomics\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003eWe had a very clear vision when conceiving the Model 404 Reference amplifier: Classic design with a modern touch; high-quality materials such as over-sized aluminum controls, solid walnut cheeks, sturdy chassis and an ergonomic user interface.\u003c\/p\u003e\n\u003cp\u003eThere are no ‘for show’ aesthetics here, no display with complicated serial menus and hidden functions, nor a single multi-function knob for ‘minimalistic’ purposes.\u003c\/p\u003e\n\u003cp\u003eThe heart of the Model 404 is pure and minimal, but the interface is user-oriented and easy to operate by anyone in seconds, with no need to resort to the user manual. Four knobs and three switches give direct access to any function.\u003c\/p\u003e\n\u003cdiv class=\"wpb_column pos-top pos-center align_left column_child col-lg-8 boomapps_vccolumn single-internal-gutter\"\u003e\n\u003cdiv class=\"uncol style-light\"\u003e\n\u003cdiv class=\"uncoltable\"\u003e\n\u003cdiv class=\"uncell  boomapps_vccolumn no-block-padding\"\u003e\n\u003cdiv class=\"uncont\"\u003e\n\u003cdiv class=\"uncode_text_column\"\u003e\n\u003ch4\u003eModular Architecture\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eMoonriver 404 Reference amplifier is modular like its brother; it can accommodate an MM or MM\/MC phono stage and a USB asynchronous DAC.  Fitting these modules is simple, and can take place at any time, on or after purchase.  The USB DAC may also be upgraded with a newer version to meet future needs and technologies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eBalance Control\u003c\/h4\u003e\n\u003cp\u003eYou may find this feature to be vanishingly scarce in audiophile products as a result of today’s ‘minimalist’ design mentality and the various myths accompanying it. However, balance control addresses a common problem: speakers that are positioned in asymmetry, in a non-balanced room environment. It therefore provides the simplest tweak towards achieving a proper soundstage.\u003c\/p\u003e\n\u003cp\u003eLiving rooms and house furniture are meant to serve everyday life and may not be positioned in an ideal listening spot, evenly distanced from each speaker to form an equilateral triangle. It is also not uncommon for one speaker to have to be placed nearer room boundaries than the other, having various frequencies boosted in a more or less predictable pattern. More often than not, balance control is incredibly useful as it drastically helps overcome volume level unevenness and in some cases, even reclaiming the stereo effect and the resulting focused sound stage.\u003c\/p\u003e\n\u003cp\u003eIt is to be expected, the way the balance control is implemented on the Moonriver 404 Reference amplifier – in parallel, will not degrade or affect the signal in any way that is determinable.\u003c\/p\u003e\n\u003ch4\u003eDiscovering the layout\u003c\/h4\u003e\n\u003cp\u003eModel 404 Reference, like the standard model, incorporates no less than 5 separate power supplies, each featuring overload protection. The power amplifier specifically runs on a dual mono configuration, beginning from separate windings on the toroidal transformer.\u003c\/p\u003e\n\u003cp\u003eWBT nextgenTM speaker terminals ensure the massive flow of current from the amplifier’s output stage, is able to drive even “difficult to drive” speakers.\u003c\/p\u003e\n\u003cp\u003eSignal switches are implemented via relays, while volume attenuation is trusted on the legendary blue ALPS pot.\u003c\/p\u003e\n\u003cp\u003eA soft start circuit based on a 30A relay ensures that even the on\/off switch is thought out to work with virtually no burden or wear for decades.\u003c\/p\u003e\n\u003cp\u003eThe 404 Reference chassis reduces unwanted resonant vibrations even further with absorbent materials, and better integral mechanical support.\u003c\/p\u003e\n\u003cp\u003eComponents are carefully selected for both suitability and reliability. We make no use of surface-mount in analog circuits, despite the fact that through-hole production costs more, and requires advanced space management \u0026amp; layout strategies.\u003c\/p\u003e\n\u003cp\u003eEach element utilised has to be of proven stability and sustained higher performance – proficient implementation provided, before making it into our analog paths.\u003c\/p\u003e\n\u003cp\u003eAs for the sound, we are not to say whether Model 404 Reference is virtually transparent or inherently forgiving. Voicing it to appreciate the playlist and respect the user at all times has been the sum of all of our effort; \u003cem\u003ea sincere effort to achieve effortlessness.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wpb_column pos-top pos-center align_left column_child col-lg-4 boomapps_vccolumn single-internal-gutter\"\u003e\n\u003cdiv class=\"uncol style-light\"\u003e\n\u003cdiv class=\"uncoltable\"\u003e\n\u003cdiv class=\"uncell  boomapps_vccolumn no-block-padding\"\u003e\n\u003cdiv class=\"uncont\"\u003e\n\u003cdiv class=\"uncode_text_column\"\u003e\n\u003ch4\u003eThe Importance of Tape Monitor Loop\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eMost of today’s manufacturers probably reject the idea of their product featuring a tape loop. At Moonriver Audio, it has been concluded that the tape monitor loop is essential. Not only does it add the option of monitoring the difference between recorded and source material in real-time, it also, and most importantly, makes possible to insert to the chain – at will – a digital or analogue room correction processor, a buffer, a noise reduction system or any other line device available to improve the sound of a connected source.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eStereo\/Mono Switch\u003c\/h4\u003e\n\u003cp\u003eThe pristine era of analogue recording being long gone, features like the stereo\/mono switch have been gradually chased out into obsolescence. Who wants to go back to one when they have two channels? “Less is more” and “more is better”. Well…\u003c\/p\u003e\n\u003cp\u003eWith the resurgence and interest in vinyl, whether the current rage; fashion or a real movement, countless monaural pressings emerge out there, often along with their digital… image.\u003c\/p\u003e\n\u003cp\u003eToo many of them, among others waiting to be rediscovered, have currently become collector’s items, 78 rpm direct-cut gems being no exception. This is not unreasonable, as what happened between say the 30s and the 80s in terms of both musical interpretation and recording technique is by many considered to be “most of the music” – this sentence doing perhaps no justice to stunning actual developments in creation and reproduction.\u003c\/p\u003e\n\u003cp\u003eThe stereo\/mono switch gives you the chance to enjoy recording art milestones with respect to how they were initially intended to please; in genuine mono, 2-channel, doing away with artificial phase discrepancies induced by a mandatory stereo mode.\u003c\/p\u003e\n\u003cp\u003eSo, ‘less’ may well be ‘more’, but ‘better’ is to have a choice.\u003c\/p\u003e\n\u003ch4\u003eOptional Phono Stage\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eModel 404 Reference comes with two options in the phono stage department; one is MM only and the other is MM\/MC selectable. Both follow the exact quality principles that Model 404 Reference is built on. Quality components and massive power supplies are also employed here, to efficiently accommodate very low noise, high performance op-amps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe gain in the MM\/MC phono can be adjusted, simply by changing the dip switches position. The MC input load can be set also, by replacing the original 100 Ohm input resistor with a higher or lower value. No soldering is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eOptional SPDIF DAC\u003c\/h4\u003e\n\u003cp\u003eThe add-on dac module is based on the 9000 series ESS Sabre dac chip. The SPDIF supports PCM streams up to 192kHz\/24bit due to the limitation of the SPDIF (coaxial) specifications. There are 3 separated power supplies with very low noise regulators, 2 for the ESS dac board and 1 for the analog circuit. The capacitor bank is massive and it uses 42000uF (in case of 404 Reference) from the power amplifier’s power supply.\u003c\/p\u003e\n\u003cp\u003eSpecially care has been given to the voicing of the analog output stage to match the dynamic and natural character of Moonriver sound. The result is an impressive sounding digital-to-analog converter which respects the timing, the space and the color of the music and unfolds the dynamic contrast – the definition of every musical event.\u003c\/p\u003e\n\u003ch4\u003eOptional USB DAC\u003c\/h4\u003e\n\u003cp\u003eWhat was desired for our USB DAC module was not to make an addition rather than an omission; instead we had to be confident of substantially raising the true value and functionality of Model 404.\u003c\/p\u003e\n\u003cp\u003eThe add-on USB dac module is also based on the 9000 series ESS Sabre dac chip with native DSD support. The USB dac supports PCM up to 384kHz\/24bi and DSD up to 128. The USB input section is separated with discrete, very low drift clocks, XMOS input based chip with custom firmware. There are 5 separated power supplies with very low noise regulators, 2 for the USB board, 2 for the ESS dac board and 1 for the analog circuit. Specially care has been given to the voicing of the analog output stage to match the dynamic and natural character of Moonriver sound. The capacitor bank is massive and it uses 42000uF (in case of 404 Reference) from the power amplifier’s power supply.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5\u003eFeatures\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e50W x 2 @ 8 Ohms\u003c\/li\u003e\n\u003cli\u003ePure, Minimal Design and Ergonomics\u003c\/li\u003e\n\u003cli\u003eModular Architecture, Optional Phono and DAC modules\u003c\/li\u003e\n\u003cli\u003eMade in Sweden\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eInputs: 5 (line 1 and 4 optionally occupied by phono stage and USB DAC respectively, 1 x tape loop)\u003c\/li\u003e\n\u003cli\u003eOutputs: 2 x preamp out, 1 x rec out\u003c\/li\u003e\n\u003cli\u003eMax output power: 50 W \/ channel into 8 Ω\u003c\/li\u003e\n\u003cli\u003eFrequency response: 10 Hz to 50 kHz\u003c\/li\u003e\n\u003cli\u003eTotal harmonic distortion: 0.05%\u003c\/li\u003e\n\u003cli\u003eSignal to noise ratio: 85 dB (line)\u003c\/li\u003e\n\u003cli\u003eIdle Consumption: 22 Watts\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 430 (W) x 390 (D) x 135 (H)\u003c\/li\u003e\n\u003cli\u003eWeight: 13 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAwards \u0026amp; Reviews\u003c\/h5\u003e\n\u003cp\u003e\u003cimg height=\"155\" width=\"449\" alt=\"Moonriver 404 Reference Integrated Amplifier\" src=\"https:\/\/theaudio.co\/cdn\/shop\/files\/moonriver-404-reference-integrated-amplifier-theaudioco-796-sk.webp\" data-original=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1867\/3055\/files\/image_2026-02-20_144251286.png?v=1771578775\" loading=\"lazy\" data-files=\"moonriver-404-reference-integrated-amplifier-theaudioco-796.webp\"\u003e\u003c\/p\u003e\n\u003ch5\u003eSupport\u003cbr\u003e\n\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1__099WO0YU6_zhZwqR2K0wxkzA8TeDp5\/view?usp=sharing\" title=\"Moonriver 404 flyer_web.pdf - google drive\" rel=\"noopener\" target=\"_blank\" aria-label=\"Visit a webpage about Moonriver 404 flyer_web.pdf - google drive\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1mDY4cCkCRhhkYFDAo0-aEU3hoGDTEqqH\/view?usp=sharing\" title=\"Manual\" rel=\"noopener\" target=\"_blank\" aria-label=\"Visit a webpage about Manual\"\u003eManual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Moonriver","offers":[{"title":"Default Title","offer_id":44068527145043,"sku":null,"price":629900.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1867\/3055\/files\/moonriver-404-reference-integrated-amplifier-theaudioco-347.webp?v=1774958273"},{"product_id":"moonriver-505-hybrid-phono-stage","title":"Moonriver 505 Hybrid Phono Stage","description":"\u003ch2\u003eThe Moonriver 505 Hybrid Phono Stage delivers refined analog playback for the discerning vinyl enthusiast. Its four inputs accommodate multiple turntables and cartridge configurations, while front-panel controls enable real-time adjustments between MC and MM formats without powering down. The hybrid architecture merges low-noise integrated circuits with discrete solid-state components, achieving both transparency and dynamic musicality. Moonriver's design philosophy prioritizes midrange fidelity—where emotional depth resides—ensuring tonal accuracy that preserves the subtle distinctions between instruments and recordings. The result is a phono stage that captures the soul of vinyl with technical precision and sonic authenticity.\u003c\/h2\u003e\n\u003cp\u003eThe Moonriver Audio 505 phono stage meets all the needs of any demanding audiophile  who loves vinyl records, both now and in the future. Designed with audiophiles, record collectors and vinyl freaks in mind, it boasts 4 inputs for all your turntables, tone-arms and cartridges. It also supports every possible adjustment on the fly with dedicated knobs and switches to ideally match your MC or MM cartridge.\u003c\/p\u003e\n\u003cp\u003eThe unique, adjustment feature of the Moonriver 505 hybrid phono stage allows “on the fly” listening tests with various adjustments without the need to switch off, remove the cover, switch on again and wait to warm it up.\u003c\/p\u003e\n\u003cp\u003eThe hybrid design combines  the use of ICs and discrete solid-state circuits  to form  an ideal, high performance and ultra low noise circuit. While the IC op amps offer very low noise levels, a discrete circuit offers lifelike drive and dynamics which is impossible to get from IC op-amps.\u003c\/p\u003e\n\u003cp\u003eAs for the sonic signature of all Moonriver Audio products, we strive to balance the fine line between musicality \u0026amp; resolution. The soul of the music is in the midrange, this is where most of the emotion, the passion, the joie de vivre is contained.\u003c\/p\u003e\n\u003cp\u003eOn a technical level, it’s within the frequency band of 200 – 4,000Hz. Without a solid foundation underneath the midrange, the music sounds thin \u0026amp; brittle and often un-involving. If the brain perceives that the sound is artificial, then it’s difficult to be swept away by the message contained within the music.\u003c\/p\u003e\n\u003cp\u003eSimilarly, accurate timbre reproduction is essential. A New York Steinway does have noticeable sonic differences from a Hamburg Steinway, while a Guarneri violin sounds distinct from a Stradivarius. To capture all those nuances, the loudspeakers \u0026amp; electronics need to act in unison, neither obscuring, nor exaggerating detail.\u003c\/p\u003e\n\u003cp\u003eThe sound and the level of performance of the Moonriver 505 phono stage is hard to describe and it must be heard to be believed.\u003c\/p\u003e\n\u003ch4\u003eLayout highlights\u003c\/h4\u003e\n\u003cp\u003eThe layout of the PCB is designed with 3 principles in mind: Isolation in-between noise sources and sensitive audio signal as the transformer and gain stages, a minimalistic approach with less components as possible in the signal and the shortest signal path possible. Moonriver 505 is using double shielding, one for the transformer and one for the active gain circuits. This approach eliminates the need for an external transformer and the disadvantages of it.\u003c\/p\u003e\n\u003ch4\u003eMade In Sweden\u003c\/h4\u003e\n\u003cp\u003eOur products are designed and made in Sweden. We hand-assemble each unit, a painstaking but precise procedure. Through a global inventory that is constantly updated, it is our sophisticated research, efficient development and extensive listening tests -the fun part- that lead us to select the right component for a no-compromise audiophile sound.\u003c\/p\u003e\n\u003cp\u003eWe also care for sustainability as well as for reliability. Moonriver products are covered by a 3-year warranty and are designed to last for decades without any need of maintenance.\u003c\/p\u003e\n\u003cdiv class=\"wpb_column pos-top pos-center align_left column_child col-lg-8 boomapps_vccolumn single-internal-gutter\"\u003e\n\u003cdiv class=\"uncol style-light\"\u003e\n\u003cdiv class=\"uncoltable\"\u003e\n\u003cdiv class=\"uncell  boomapps_vccolumn no-block-padding\"\u003e\n\u003cdiv class=\"uncont\"\u003e\n\u003cdiv class=\"uncode_text_column\"\u003e\n\u003ch4\u003eDesign \u0026amp; User Interface\u003c\/h4\u003e\n\u003cp\u003eWe had a very clear vision when conceiving the Model 505 hybrid phono stage: Classic design with a modern touch; high quality materials such as oversized aluminium knobs, solid walnut cheeks, sturdy chassis and an ergonomic user interface.\u003cbr\u003eThere are no “for show” aesthetics here, no display with complicated serial menus and hidden functions, nor a single multi-function knob for “minimalistic” purposes.\u003cbr\u003eThe heart of the Model 505 is pure and minimal, but the interface is user-oriented and easy to operate by anyone in seconds, with no need to resort to the user manual.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cp\u003eGiving direct access to all necessary adjustments, the 505 includes 4 knobs and 5 switches for all the adjustments: 4 inputs, 12 gain settings (6 for MM and 6 for MC), 5 MM capacitance settings, 5 MC load settings, including a custom option, 3 MM load settings and EQ choice for RIAA, Decca or Columbia 78 rpm records. The 505 phono stage will handle the signal from your precious MC cartridge with unmatched performance and it will make your everyday MM cartridge sound like never before.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wpb_column pos-top pos-center align_left column_child col-lg-4 boomapps_vccolumn single-internal-gutter\"\u003e\n\u003cdiv class=\"uncol style-light\"\u003e\n\u003cdiv class=\"uncoltable\"\u003e\n\u003cdiv class=\"uncell  boomapps_vccolumn no-block-padding\"\u003e\n\u003cdiv class=\"uncont\"\u003e\n\u003cdiv class=\"uncode_text_column\"\u003e\n\u003ch4\u003eComponents\u003c\/h4\u003e\n\u003cp\u003eThe layout is mainly based on discrete, through hole components except the input for MM and MC stages with their impedance and capacitance adjustments which are using surface mount components to keep the signal path as short as possible. The components are carefully chosen in order to deliver the most possible open and transparent sound from input to output and to reveal the texture and the micro and macro dynamic content of each record. The Moonriver 505 hybrid phono stage reveals previously unheard details and qualities in your vinyl records, including micro-contrast and low level information that you may have not experienced otherwise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003ePower supply\u003c\/h4\u003e\n\u003cp class=\"western\" align=\"left\"\u003eThe Moonriver 505 hybrid phono stage contains 6 separated power supplies, including a massive 70000uf total capacitance and it is designed in dual mono operation. Each stage has its own power supply, including a linear discrete regulator circuit and a discrete noise rejection circuit.\u003c\/p\u003e\n\u003ch4\u003eActive gain stage\u003c\/h4\u003e\n\u003cp\u003eUsing ultra low noise active gain stages, the Moonriver 505 delivers a maximum gain of 72dB (x4000 times) in the MC setting. The MM and MC settings use different input stages with different op amps specifically chosen for each case. All setting functions are performed with air sealed, extremely low impedance relays. Finally, a discrete, high current output circuit delivers lifelike dynamics on the output.\u003c\/p\u003e\n\u003ch4\u003eMicrocontroller operation with save memory function\u003c\/h4\u003e\n\u003cp\u003eA microcontroller controls all functions and ensures an entirely silent operation. Every setting change is stored automatically for each of the 4 inputs. Every time you change the input, the last chosen settings are recalled automatically. For example, you can connect 4 MC cartridges or 4 MM cartridges or 2MC and 2 MM, or 3 MM and one MC, every combination is possible with different settings for every input.\u003c\/p\u003e\n\u003ch4\u003eDe-emphasis EQ\u003c\/h4\u003e\n\u003cp\u003eThe de-emphasis circuit is passive, the best possible approach for extreme flat frequency response without interference with the other stages. The EQ circuits involve 2 equalisation curves, a RIAA and a DECCA or COLUMBIA curve for 78rpm records. Both EQ circuits are formed using a minimalistic approach with very few, extremely low tolerance, audiophile quality components.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\n\u003cspan\u003eHybrid design combines ICs and discrete solid-state circuits\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003ePure, Minimal Design and Ergonomics\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cspan\u003e4 knobs and 5 switches for all the adjustments: 4 inputs, 12 gain settings (6 for MM and 6 for MC), 5 MM capacitance settings, 5 MC load settings, including a custom option, 3 MM load settings and EQ choice for RIAA, Decca or Columbia 78 rpm records. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEvery setting change is stored automatically for each of the 4 inputs. Every time you change the input, the last chosen settings are recalled automatically. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePassive De-emphasis EQ circuit involve 2 equalisation curves, a RIAA and a DECCA or COLUMBIA curve for 78rpm records\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eMade in Sweden\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eInputs: 4\u003c\/li\u003e\n\u003cli\u003eMinimum gain: 34dB\u003c\/li\u003e\n\u003cli\u003eMaximum gain: 72 dB\u003c\/li\u003e\n\u003cli\u003eCapacitance values: 100, 220, 330, 470, 680pF\u003c\/li\u003e\n\u003cli\u003eMC load impedance: 10, 47, 100, 470, 1KΩ and custom\u003c\/li\u003e\n\u003cli\u003eMM load impedance: 22K, 47K, 75KΩ\u003c\/li\u003e\n\u003cli\u003eDe-emphasis curve: RIAA and Decca or Columbia\u003c\/li\u003e\n\u003cli\u003eStereo \/ Mono function\u003c\/li\u003e\n\u003cli\u003eXLR and RCA inputs and outputs\u003c\/li\u003e\n\u003cli\u003eSeparate shielding for the transformer and gain stages\u003c\/li\u003e\n\u003cli\u003eAuto mute function\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 430 (W) x 390 (D) x 135 (H)\u003c\/li\u003e\n\u003cli\u003eWeight: 12 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAwards \u0026amp; Reviews\u003c\/h5\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/theaudio.co\/cdn\/shop\/files\/image-2026-02-20-150609742.webp\" alt=\"Moonriver 505 Hybrid Phono Stage\" width=\"478\" height=\"164\" loading=\"lazy\" data-original=\"https:\/\/storage.googleapis.com\/engage-seoimages\/blingizmo.myshopify.com\/7888712073299\/image_2026-02-20_150609742.png\" data-files=\"image-2026-02-20-150609742.png\"\u003e\u003c\/p\u003e\n\u003ch5\u003eSupport\u003cbr\u003e\n\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/drive.google.com\/file\/d\/1ji3fi50X6CLY8_ykinbQhPkp5FtiNTOg\/view?usp=sharing\" target=\"_blank\" title=\"Moonriver-505-flyer_new.jpg - google drive\" aria-label=\"Visit a webpage about Moonriver-505-flyer_new.jpg - google drive\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Manual\" href=\"https:\/\/drive.google.com\/file\/d\/1xCgFjJx7nUSL33d_98qM8CmEtpGHgk5a\/view?usp=sharing\" target=\"_blank\" aria-label=\"Visit a webpage about Manual\"\u003eManual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Moonriver","offers":[{"title":"Default Title","offer_id":44068568334419,"sku":null,"price":629900.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1867\/3055\/files\/moonriver-505-hybrid-phono-stage-theaudioco-972.webp?v=1774958256"}],"url":"https:\/\/theaudio.co\/collections\/moonriver.oembed","provider":"The Audio Co.","version":"1.0","type":"link"}