Moonriver Audio

Moonriver Audio is a Swedish Hi-Fi manufacturer focused on creating amplifiers that prioritise musical engagement, tonal realism, and long-term listening enjoyment over specification-driven Hi-Fi trends. Designed and manufactured in Sweden, Moonriver products combine classic analogue amplifier philosophy with modern reliability and refinement, resulting in components that feel deeply musical, highly tactile, and refreshingly authentic within today’s audio landscape.

What makes Moonriver particularly distinctive is the company’s deliberate focus on current delivery and power supply design rather than simply chasing larger wattage figures on paper. The Moonriver amplifiers are built around enormous linear power supplies with substantial current reserves, allowing the amplifiers to drive loudspeakers with a sense of authority, scale, and ease that feels dramatically larger than the rated 50 watts per channel might initially suggest.

At HeyNow Hi-Fi, the Moonriver 404 Reference consistently surprises listeners through its ability to sound far more powerful, spacious, and dynamically capable than expected. There is a physicality and effortlessness to the presentation that gives music genuine weight and scale while still retaining the tonal warmth and natural flow that makes long listening sessions deeply enjoyable.

Manufactured in Sweden, Moonriver amplifiers are engineered around fully analogue Class A/B architectures, oversized linear power supplies, short signal paths, and carefully selected component implementation designed to maximise musical coherence and tonal naturalness.

The substantial power supply design is central to the Moonriver sound. Rather than producing an amplifier that sounds technically impressive but emotionally detached, Moonriver focuses on delivering stable current and strong speaker control under real musical conditions. This contributes to the amplifier’s remarkably confident bass performance, expansive soundstage, and ability to maintain composure even with more demanding loudspeaker loads.

The 404 Reference integrated amplifier in particular has developed a strong following for its combination of warmth, dimensionality, and dynamic realism. Instruments and vocals carry convincing body and harmonic texture, while the presentation feels open, layered, and highly immersive without becoming overly soft or romanticised.

Moonriver also maintains a modular philosophy, allowing optional DAC and phono stages to be added while preserving the integrity of the core analogue amplifier platform itself. The matching 505 phono preamplifier further extends the company’s focus on analogue performance and musical flow.

The Moonriver Audio range available through HeyNow Hi-Fi focuses primarily on integrated amplifiers and analogue playback solutions designed for listeners seeking a more emotionally connected and musically immersive Hi-Fi experience.

The 404 Reference remains the centrepiece of the range, combining substantial current delivery, analogue warmth, modular flexibility, and Scandinavian industrial elegance into one highly engaging amplifier platform. Together with the optional DAC and phono modules and the highly regarded 505 phono preamplifier, Moonriver offers a refreshingly music-first approach to modern Hi-Fi ownership.

At HeyNow Hi-Fi, Geoff and his experienced system setup team provide assistance with speaker matching, analogue integration, phono system setup, and complete system optimisation to ensure Moonriver products perform at their full potential within each customer’s listening environment.

Explore the Moonriver Audio range:

Phono Pre-Amplifiers

Integrated Amplifiers