ABOUT US

Moonriver Audio

Inspired by the famous song, Moonriver Audio is a combination of the vintage and the contemporary in audio reproduction.

Classic, timeless, user oriented design. Organic texture acquired within an open space, dynamic behavior unrestrained while preserving natural color, provisions made for modular upgrades and direct access to all functions.

Moonriver loves vinyl records, analog tapes, compact discs and digital streams and features upgradable modules for all those formats. We employ every technology available today, without staying dogmatically exclusive to one design principle versus another, be it solid state, integrated circuit or vacuum tube.
We are fond of hybrid designs that fuse well known and fresh tech elements, but, most of all, that fit the application.

Made in Sweden

Our 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.

We 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.

PRODUCTS

The 404 integrated amplifier

Moonriver 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.

A 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.

Furthermore, an integrated phono stage, a USB DAC, two preamp outputs and a tape monitor loop expand functionality to form an ideally flexible integrated amplifier.

Design & Ergonomics

We 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.

There are no “shaved” aesthetics here, no display with complicated serial menus and hidden functions, nor a single multi-function knob for “minimalistic” purposes.
The 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.

Modular Architecture

Moonriver 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.

Balance Control

You 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.

Living 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.

As 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.

Discovering the layout

Model 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.

Signal switches are implemented via relays, while volume attenuation is trusted on the legendary blue ALPS pot.

A 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.

Components 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 & layout strategies.

Each element utilized has to be of proven stability and sustained higher performance -proficient implementation provided- before making it into our analog paths.

As 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; a sincere effort to achieve effortlessness.

The Importance of Tape Monitor Loop

Probably 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.

It 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.

Stereo/Mono Switch

The 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…

As 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.

So, “less” may well be “more”, but better is to have a choice.

Optional Phono Stage

Model 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.

Optional USB DAC

What 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.

Some key features; state-of-the-art XMOS USB asynchronous interface; AKM 4490 DAC chip; separate high-precision clocks for the 44,1K and the 48K sample rate group respectively; supports PCM streams up to 384kHz. USB, D/A and analog out section each one fed by its own dedicated power supply.

We work hard to get the best possible sound performance and we believe that this USB DAC is a enormous added value to the Model 404 amplifier.

Specifications

  • Inputs: 5 (line 1 and 4 optionally occupied by phono stage and USB DAC respectively, 1 x tape loop)
  • Outputs: 2 x preamp out, 1 x rec out
  • Power output: 50 W per channel into 8 Ω
  • Frequency response: 10 Hz to 50 kHz
  • Total harmonic distortion: 0.05%
  • Signal to noise ratio: 95 dB (line)
  • Idle Consumption: 22 Watts
  • Dimensions (mm): 430 (W) x 390 (D) x 135 (H)
  • Weight: 12 kg

NEWS

MOONRIVER AUDIO AT HIGH END MÄSSAN 2020 IN STOCKHOLM

Moonriver Audio is present at High-End event on 8th and 9th of February 2020 at Seraton hotel in Stockholm.

Visit us in P.L.AUDIO show room.

More information can be found at http://highendmassan.se/

VISIT US AT NORDDEUTSCHEN HIFI-TAGE 2020 IN HAMBURG, GERMANY

Moonriver Audio will be in Norddeutschen Hifi-Tage on 1st and 2nd of February 2020 at Holiday INN Hamburg Elbbrücken.

Visit us in LEN HIFI show room #1807

More information can be found here: https://www.hifitage.de/

EXPERIENCE MOONRIVER AUDIO AT HAGTO AUDIO, NORWAY

Our new Norwegian distributor, Hagto Audio presents Moonriver Audio 404 amplifier together with Harbeth speakers on January the 25th at Søgne, Norway.

More information: http://www.hagto-audio.com/

MOONRIVER AUDIO 404 RECEIVED BEST SOUND AWARD FROM HIGH FIDELITY MAGAZINE AT AUDIO/VIDEO SHOW IN WARSAW, POLAND 2019

http://highfidelity.pl/@main-3599

VISIT US AT ROMA HI-FIDELITY 2019, IN ROME, ITALY

Listen to Moonriver Audio at Roma Hifi exhibition on 23nd and 24th of November 2019 at Mercure West Hotel in Rome.

Visit us in LUXURY GROUP show room.

More information can be found at http://www.milano-roma-hi-fidelity-audio-show.it/Roma_2019_index.html and https://www.facebook.com/Milano.Roma.Hi.Fidelity/

DISCOVER MOONRIVER AUDIO AT INTERNATIONAL SOUND & SIGHT EXHIBITION 2019 IN SINGAPORE.

Listen to Moonriver Audio at Hifi exhibition between 22nd and 24th of November 2019 at Holiday Inn Singapore at Orchard City Centre.

Visit us in TIEN AUDIO show room #716.

More information can be found at https://www.facebook.com/SoundSightJournal/

EXPERIENCE MOONRIVER AUDIO AT AUDIO/VIDEO SHOW 2019 IN WARSAW, POLAND

Moonriver Audio will be present at Hifi event between 8th and 10th of November 2019 at Narodowy Stadium in Warsaw.

Visit us in Audiofast #224 show room in the Narodowy Stadium.

More information can be found at https://audioshow.pl/pl/main

VISIT US AT XFI PREMIUM AUDIO SHOW 2019 IN EINDHOVEN, NETHERLANDS

Moonriver Audio will be in XFI premium audio show 2019 on 28th and 29th of September at NH Hotel Conference Centre Koningshof in Eindhoven, Netherlands.

See and listen the Moonriver Audio 404 amplifier in Rik Stoet show room.

More information can be found at https://x-fi-audioshow.nl/

DISCOVER MOONRIVER AUDIO AT WESTDEUTSCHE TAGE HIFI SHOW 2019 IN BONN, GERMANY

Listen to Moonriver Audio at Hifi exhibition on 28th & 29th of September 2019 at Maritim Hotel in Bonn.

Visit us in LEN Hifi show room.

More information can be found at http://www.westdeutsche-hifi-tage.de/

EXPERIENCE MOONRIVER AUDIO AT MESSUKESKUS HIFI SHOW 2019 IN HELSINKI, FINLAND

Moonriver Audio will be present at Hifi event between 13th and 15th of September 2019 at Messukeskus Siipi in Helsinki.

Visit us in AudioShop Ratilainen show room.

More information can be found at https://hifi.messukeskus.com/?lang=en

MOONRIVER AUDIO IS PARTICIPATING AT HIGH END FAIR 2019 IN MUNICH

Visit Moonriver Audio room at MOC in Munich between 9th and 12th of May, at room F18 in the 2nd hall. We are introducing new products.

More information can be found at https://www.highendsociety.de

Watch a trailer about the fair here: https://www.youtube.com/watch?v=GYtKxrxIj3A

DISCOVER MOONRIVER AUDIO AT HIGH END MÄSSAN 2019 IN STOCKHOLM

Moonriver Audio will be present at High-End event on 16th and 17th of February 2019 at Seraton hotel in Stockholm.

Visit us in P.L.AUDIO show room.

More information can be found at http://highendmassan.se/

VISIT US AT GÖTEBORG HIFI-SHOW 2018

Moonriver Audio will be in Göteborg HiFi-Show 2018 on 15th and 16th of September at Elite Park Avenue Hotel in Göteborg, Sweden.

Visit us in P.L.AUDIO show room on the first floor.

REVIEWS

A Charming Combination | Moonriver Audio 404 & ATC SCM40 v.2 Review in AUDIOHT magazine 09/2020

"The combination of ATC's SCM40 version 2 and Moonriver Audio's 404 actually sounds very synergistic. The high resolution, high-end ATC monitors have a transparent and three-dimensional sound stage and an accurate, colorless midrange convey the true information of the recording exactly as it is. The recording of a large format, such as the finale of Bernstein and New York Philharmonic's Mahler's Symphony No. 2, reveals a three-dimensional stage with wide left and right depths a deep front and rear depth, and shows the driving force of stable power without collapsing into the center of the stage even in the gun barrel. It is easy to understand the separation of vocals and orchestra instruments, as it shows the strength of the speaker's resolution and detail".

Korean (original) version:
http://www.audioht.co.kr/news/articleView.html?idxno=11550

English version (Google Translate):
https://translate.google.com/translate?hl=el&sl=ko&tl=en&u=http%3A%2F%2Fwww.audioht.co.kr%2Fnews%2FarticleView.html%3Fidxno%3D11550&sandbox=1

Review: Moonriver Audio Model 404 in HiFi Philoshophy magazine 06/2020

"Overall, the amplifier turned out to offer a colorful, atmospheric and well-saturated sound, it was also able to reproduce spatial effects, especially holography and reverbs. It doesn't hide the naturalness of the vocals, it was able to create a deep stage, immersing the listener in the music, allowing him to enjoy it. The most important here was the atmosphere, it was a reference to the sound from tubes. No bright light, especially soprano glow - transparent and atmospheric sound at the same time. Translucency was combined with chiaroscuro, the number of details was sufficient, and most of all it included the omnipresent three-dimensional, concerning both the stage and the sounds. Simultaneously, a melange of a good substitute for the most expensive and best amplifiers, for which you can pay tens, sometimes hundreds of thousands.".

Polish (original) version:
https://hifiphilosophy.com/recenzja-moonriver-audio-model-404/?caly-artykul=1

English version (Google Translate):
https://translate.google.com/translate?hl=el&sl=pl&tl=en&u=https%3A%2F%2Fhifiphilosophy.com%2Frecenzja-moonriver-audio-model-404%2F%3Fcaly-artykul%3D1

A Bright Pearl from Sweden | Moonriver Audio 404 Review in NGHENHIN magazine 04/2020

"Despite its classic design, the Model 404 completely convinced us of the "jacket" outside. We can see there is balanced, calm, but not too flashy. As for the sound, this amplifier easily convinces the listener. It expresses the sound in a very natural and vivid way, does not highlight any sub-areas, does not add color to the music, but only provides a classy and coherent sound. Although the price of the product is only in the mid-range tube amplifier segment, Moonriver Audio Model 404 is completely capable of bringing true hi-end sound, especially towards the philosophy of modern audio design, optimizing the dynamic and preserving the fidelity of the recording. It is completely possible to defeat the competition with many times higher prices".

Vietnamese (original) version:
https://nghenhinvietnam.vn/tin-tuc/moonriver-audio-model-404-vien-ngoc-sang-den-tu-thuy-dien-63598.html

English version (Google Translate):
https://translate.google.com/translate?hl=el&sl=vi&tl=en&u=https%3A%2F%2Fnghenhinvietnam.vn%2Ftin-tuc%2Fmoonriver-audio-model-404-vien-ngoc-sang-den-tu-thuy-dien-63598.html

A New Powerhouse | Moonriver Audio 404 Integrated Amplifier Review in AUDIOHT magazine 06/2020

"The Swedish Moonriver 404 is a very good amplifier with the advantage of pure sound that extracts the recording as it is, in a neutral, natural tone with excellent dynamics and modern sound characteristics added to the retro but attractive appearance".

Korean (original) version:
http://www.audioht.co.kr/news/articleView.html?idxno=11413

English version (Google Translate):
https://translate.google.com/translate?hl=el&tab=TT&sl=ko&tl=en&u=http%3A%2F%2Fwww.audioht.co.kr%2Fnews%2FarticleView.html%3Fidxno%3D11413

Classicismo Sueco | A Moonriver Audio 404 Review in HIFICLUBE magazine 05/2020

“The 404 is an amplifier with modern, vibrant and young sound, with a high "athletic" capacity. It is difficult to define the type of the sound: Voices sound clean, clear, without artificial 'chest', which can often be confused with body and texture. It sounds like a thin cambric which, by letting the light through, show us the threads that makes the texture of the fabric: the smallest details are heard as part of the music, and not just as sound 'fireworks'.

The sound is so delicate and rich in information, that even conventional speakers seem to exhibit the characteristics of transparency and harmonic richness typical of electrostatics. It is a unique product from a new brand which can help you to solve the old valve vs. transistor dichotomy, offering colorless transparency, speed and dynamics without "aggression".

Portuguese version:
http://www.hificlube.net/artigos/reviews-testes/moonriver-audio-404-classicismo-sueco/

English version (Google Translate):
https://translate.google.com/translate?hl=en&sl=pt&tl=en&u=http%3A%2F%2Fwww.hificlube.net%2Fartigos%2Freviews-testes%2Fmoonriver-audio-404-classicismo-sueco%2F

Moonriver Audio 404 Review in HIFI Test magazine issue 02/2020

“The 404 plays incredibly direct and doesn't give much the idea of the typical high-end sound. It sounds fresh and out of the box. The sound stage is wide, but has a particularly important effect in depth and height and sounds pleasantly lush. The retro style goes beyond the look. It is a device to touch, but most of all to listen to music, because of its direct and energetic sound which is the actual charm of the amplifier".

https://hifitest.de/shop/einsnull/2000-einsnull-2-2020-epaper.html

Moonriver Audio 404 Integrated Amplifier Review in Stereo+ magazine issue 02/2020

“Absolutely fantastic with full control in the base and with an almost overwhelming musicality. It plays music in an open and transparent way, allowing for full insight into a well-defined three-dimensional soundscape. The Moonriver amplifier is incredibly nimble and precise, and has a transient response that makes your favorite music a festive moment. Everything merges into a rich and vibrant soundscape with massive amounts of information and timbre nuances".

Download the Norwegian version

Moonriver Audio 404 Integrated Amplifier Review in VU Metre magazine issue#27 02/2020

“Moonriver 404 impressed us completely with its sound personality. We were amazed by its clarity, and its ability to highlight a considerable amount of micro-information and small details. Your records will seem much more supplied, detailed, and rich than usual. Acoustic instruments take on an almost physical posture, as the 404 seems capable of eradicating the coloration to deliver us only their essential marrow".

Download the French version

Moonriver Audio 404 Integrated Amplifier Review in HighFidelity.pl online magazine 12/2019

“This is an amplifier that plays in such a natural and effortless way that even very expensive devices from other companies can envy it. Its sound is dense, but this density is resulting from good resolution and consistency, not from coloration. The amplifier sounds very natural, saturated and incredibly vibrant. It's a sophisticated sound for not much money".

http://highfidelity.pl/@main-971&lang=en (English)

http://highfidelity.pl/@main-3608&lang= (Polish)

Moonriver Audio 404 Integrated Amplifier + Larsen 6.2 speakers Review in Finnish Hifimaailma magazine issue #7/2019

“The traditional but also up-to-date Moonriver Model 404 convinced us with its sound and performance. And that is a spectacular device. The amplifier upgrade ability is a big plus, it will meet your needs, the additional modules can be purchased afterwards and are not bad priced".

https://www.lehtiluukku.fi/lehdet/hifimaailma

Moonriver Audio 404 Integrated Amplifier Review in German LP magazine issue #01/2020

"The Moonriver is a beautiful power amplifier of the old school with amazing sonic potential: It sounds fresh, has a clear edge and is clearly one of the most dynamic representatives of its class"

https://www.hifitest.de/test/vollverstaerker/moonriver-404_18727

Moonriver Audio 404 Integrated Amplifier Review in Swedish Hifi & Musik magazine #11/2019 in Swedish and English

"A rather amazing amplifier that really floored us and handled all the speakers we hooked up, despite the modest wattage. Moonriver provides hard-to-describe acoustic magic – the sound is of the kind that really must be experienced"

Download the English version

Download the Swedish version

DISTRIBUTORS

CANADA

On A Higher Note (Distributor)
Philip O’Hanlon
Web: www.onahighernote.com
Phone: +19495441990
Contact: https://onahighernote.com/sales/

CARIBBEAN ISLANDS

On A Higher Note (Distributor)
Philip O’Hanlon
Web: www.onahighernote.com
Phone: +19495441990
Contact: https://onahighernote.com/sales/

GERMANY

Len HiFi (Distributor)
Bjorn Kraayvanger
Web: www.lenhifi.de
Phone: +49 (0) 2065 544 139
Email: info@lenhifi.de

FINLAND

Audioshop Ratilainen (Distributor)
Tommi Ratilainen
Web: www.audioshop.fi
Phone: +35 (0) 8445800051
Email: info@ratilainen.net

FRANCE

Sound & Colors GT Audio (Distributor)
Romain Cochery
Web: www.soundandcolors.com
Phone: +33 (0) 760971313
Email: romain.cochery@soundandcolors.com

HONG KONG

Henson Audio Limited (Distributor)
Chan Chi Kin
Web: www.hensonaudio.com.hk
Phone: +852 3481 8121
Email: hensonaudioltd@gmail.com

ISRAEL

O.M. Design (Dealer)
Web: www.or-audio.co.il
Phone: +972 (0) 528833339
Email: omd.audio@gmail.com

ITALY

Luxury Group srl (Dealer)
Alfredo Scauzillo
Web: www.luxurygroup.it
Phone: +39 (0) 823210150, +39 (0) 335473447
Email: info@luxurygroup.it

KOREA (SOUTH)

Damino Sound Technologies (Distributor)
Damino Lee
Web: www.damino.co.kr
Phone: +82 2 719 0290
Email: info@damino.co.kr

MEXICO

On A Higher Note (Distributor)
Philip O’Hanlon
Web: www.onahighernote.com
Phone: +19495441990
Contact: https://onahighernote.com/sales/

NETHERLANDS

HiFi Matters bv (Distributor)
Rik Stoet
Web: www.hifimatters.nl
Phone: +31 (0) 703193936
Email: info@hifimatters.nl

NORWAY

Hagto Audio (Distributor)
Torry Hægeland
Web: www.hagto-audio.com
Phone: +47 95261932
Email: hagtopost@gmail.com

POLAND

AUDIOFAST (Distributor)
Jaroslaw Orszanski
Web: www.audiofast.pl
Phone: +48 (0) 426133753
Email: info@audiofast.pl

PORTUGAL/SPAIN

ULTIMATE AUDIO (Distributor)
Miguel Carvalho
Web: www.ultimate-audio.eu
Phone: +351 217602028
Email: miguel@ultimate-audio.eu

SWEDEN

P.L. AUDIO Import AB (Distributor)
Lars Ek
Web: www.plaudio.com
Phone: +46 (0) 40916658
Email: info@plaudio.com

SWITZERLAND

Audio Synthese (Distributor)
Yvan Coderey
Web: www.audiosynthese.ch
Email: info@audiosynthese.ch

UNITED KINGDOM

Whole Note Distribution (Distributor)
David Graham
Web: www.wholenotedistribution.co.uk
Phone: +44 203 911 5549
Email: info@wholenotedistribution.co.uk

UNITED STATES

On A Higher Note (Distributor)
Philip O’Hanlon
Web: www.onahighernote.com
Phone: +19495441990
Contact: https://onahighernote.com/sales/

VIETNAM

Eland Audio (Distributor)
William Vu Nguyen
Web: www.elandaudio.com
Phone: +84 972 027 027
Email: info@elandaudio.com

CONTACT

Moonriver Audio

Poststugan 532
21165 Malmö
Sweden

+46 (0) 765905066
info@moonriveraudio.com