Moonriver Audio

Moonriver Audio is a Swedish hi-fi manufacturer best known for hand-built integrated amplifiers with a distinctive mix of classic styling, modern engineering and practical modular design. The brand has built a strong following among listeners who want a more tactile, traditional hi-fi experience without giving up the refinement and flexibility expected from a modern amplifier. Read more info ↓
FOUNDED
2015
HEADQUARTERS
Sweden
Moonriver Audio

The Moonriver Audio catalogue. 2 ranges. 3 products.

01 2 PRODUCTS | £3,299 – £5,298

Moonriver 400 Series

Classic styling and a deliberately straightforward signal path define the Moonriver 400 Series, centred on the Model 404 integrated amplifier with modular phono and DAC options alongside substantial analogue connectivity.

2 PRODUCTS
£3,299 – £5,298
02 1 PRODUCT | £4,499

Moonriver 500 Series

The Moonriver 500 Series focuses on dedicated analogue source components, with the 505 hybrid phono stage offering extensive MM and MC adjustment, multiple inputs and alternative equalisation curves for serious vinyl systems.

1 PRODUCT
£4,499

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Moonriver Audio is a Swedish hi-fi company based in Malmö. Its products are designed, hand-assembled and tested in Sweden, with the company deliberately favouring small-scale production and traditional through-hole construction for much of its analogue circuitry.

Moonriver is best known for analogue-focused electronics that combine classic styling with modern engineering. Physical controls, walnut side panels and features such as balance, mono and tape-monitor functions give the products a traditional feel, while the internal design is aimed at contemporary high-end systems.

Vinyl listeners are particularly well catered for, but Moonriver is not limited to turntables. The 404 amplifiers can accept optional MM or MM/MC phono modules, while the dedicated 505 phono stage supports both cartridge types and several turntable or tonearm setups. Digital sources can also be connected through a separate DAC or suitable optional module.

Both deliver 50 watts per channel and share the same basic layout, controls and modular architecture. The 404 Reference puts considerably more emphasis on its power supply, increasing total capacitance from 57,000µF to 107,000µF and adding upgraded speaker terminals and mechanical damping. It is the more ambitious choice rather than simply a higher-powered version of the 404.

The headline figure does not tell the whole story. Both 404 models use substantial power supplies and are designed for strong current delivery, and Premium Sound has successfully tested the 404 Reference with a wide range of speakers. Very demanding speakers or unusually large rooms still deserve careful matching, but the 50W rating should not be judged in isolation.

Features such as balance adjustment, mono switching and a tape-monitor loop are included because they can still solve genuine problems. Balance can help with asymmetrical rooms or speaker placement, mono is useful with older recordings, and the tape loop can accommodate processors or other line-level equipment without rebuilding the system.

Premium Sound stocks the Moonriver 404, 404 Reference and 505, and the Kensington showroom provides facilities for auditioning hi-fi equipment. Hearing the amplifiers with speakers similar to your own is particularly useful here, as their real-world drive is not obvious from the 50-watt specification alone. Availability of the exact model is worth confirming before visiting.

More info about Moonriver Audio.

The company’s design language is deliberately understated. Moonriver Audio amplifiers have a clean, almost vintage look, with physical controls, clear layout and a sense of permanence that feels closer to classic hi-fi than short-lived consumer electronics. This is not styling for the sake of nostalgia. It reflects the brand’s wider philosophy: equipment should be easy to live with, enjoyable to use and focused on the music rather than unnecessary complexity.

Moonriver Audio is particularly associated with integrated amplifiers such as the 404 and 404 Reference. These models are designed around analogue performance, with a smooth, natural and open presentation that suits long listening sessions. Rather than chasing impressive specifications on paper, Moonriver focuses on timing, tone, texture and musical flow. The result is a sound that many listeners will find engaging, expressive and refreshingly unforced.

A key part of Moonriver’s appeal is its modular approach. Depending on the model and configuration, options can include a phono stage for MM or MC cartridges and a USB DAC module, allowing the amplifier to be tailored to a particular system. This makes Moonriver Audio a strong choice for vinyl-based systems, analogue-first setups and users who want a high quality amplifier that can adapt as their system develops.

For anyone looking for a Swedish integrated amplifier with character, build quality and proper hi-fi values, Moonriver Audio offers something refreshingly different. It combines the feel of traditional audio engineering with a modern, carefully considered approach to system building.

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