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Moonriver 404 Reference Integrated Amplifier - Consignment
Condition: Used. Excellent, marks to remote only (See photos)
Includes: Remote, Manual, Power Cable, Original Packaging
SN: VM2202080472RE
Made in Sweden
Includes 7 day warranty
Overview
Moonriver were extremely conservative rating the amplifier at 50W per channel, the amp has enough grunt to drive serious loads.
5 separate power supplies, each with overload protection provide 107000uf, of which 21000uf is reserved for the preamp only. The power amplifier specifically runs on a dual mono configuration, with separate windings on the toroidal transformer.
WBT nextgenTM speaker terminals ensure the massive flow of current is able to drive hungry speakers.
Volume attenuation is managed by the legendary blue ALPS pot. Signal switches are implemented via relays.
A soft start circuit based on a 30A relay helps minimise burden or wear.
The stereo/mono switch gives you the chance to enjoy recordings in genuine mono, while still driving both speakers, removing the artificial phase discrepancies that occur in a mandatory stereo mode.
Specification
Inputs: 5 (line, 1 x tape loop)
Outputs: 2 x preamp out, 1 x rec out
Max output power: 50 W / channel into 8 Ω
Frequency response: 10 Hz to 50 kHz
Total harmonic distortion: 0.05%
Signal to noise ratio: 85 dB (line)
Idle Consumption: 22 Watts
Dimensions (mm): 430 (W) x 390 (D) x 135 (H)
Weight: 13 kg
AUDIO CONNECTION QUALITY GUARANTEE
✔️ Seven day warranty on Consignment*
✔️Passed our checks for functionality
✔️A full inspection noting for any defects
✔️A full completeness check for all included parts and accessories
Buyer’s market here: A$3,900 sits well below the A$5,410 25th percentile and far under the A$5,424 median, so this reads as a strong bargain in the current used market. Against the recent comparable set, it’s priced low enough to leave room for a service check, cables, or a trial if needed, rather than being a stretch.
That makes it attractive because this is the kind of integrated that’s bought for musical ease and real drive, not just specs: authoritative control, good timing, and enough refinement to anchor a serious system. If the unit is clean, quiet on operation, and comes with the original remote or packaging, the value gets even better. Only dig deeper for signs of wear, channel imbalance, or missing accessories if anything in the listing looks incomplete.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Moonriver Audio, a Swedish high-end audio brand based in Malmö, draws its name from the iconic song "Moon River" featured in the 1961 film Breakfast at Tiffany's. Founded in recent years by chief engineer George Polychronidis, the company embodies a fusion of vintage aesthetics and contemporary engineering, with products meticulously designed and hand-assembled in Sweden. This heritage reflects a passion for timeless audio reproduction, evoking the warmth of classic designs while leveraging modern precision.
The brand specializes in integrated amplifiers, exemplified by its flagship Model 404 and the refined 404 Reference. These transistor-based powerhouses deliver tube-like warmth, exceptional dynamics, and tonal accuracy, prioritizing through-hole components for reliability and purity. Moonriver focuses squarely on amplification, eschewing diversification into speakers, turntables, DACs, headphones, or cables to hone its expertise in this core category.
Positioned as an exciting newcomer in the high-end market, Moonriver garners acclaim for its balanced, detailed sound that rivals established names. Hand-built quality and a user-oriented philosophy appeal to discerning hi-fi enthusiasts seeking mid-to-high-end performers with a boutique Swedish flair, blending accessibility with audiophile refinement.
See all Moonriver Audio listings on RADAR.
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