Moonriver Audio 404 Reference Integrated Amplifier
The Moonriver Audio 404 Reference Integrated Amplifier delivers 50W per channel with a powerful 107,000µF power supply, dual-mono design and fully discrete preamp. Moreover, optional MM/MC phono and USB DAC modules add flexibility, while balanced controls, tape monitoring and premium construction support refined high-end stereo playback.
Technical Specifications —
- Output Power: 50W per channel into 8Ω.
- Inputs: 5 inputs, with Line 1 and Line 4 optionally supporting phono and USB DAC modules.
- Outputs: 2 × preamp outputs and 1 × record output.
- Frequency Response: 10Hz–50kHz.
- Total Harmonic Distortion: 0.05%.
- Signal-to-Noise Ratio: 85dB for line input.
- Power Supply: 107,000µF total capacitance, including 21,000µF dedicated to the preamp.
- Amplifier Design: Dual-mono power amplifier with separate transformer windings and 5 protected power supplies.
- DAC Support: Optional USB DAC supports PCM up to 384kHz/24-bit and DSD128; optional SPDIF DAC supports PCM up to 192kHz/24-bit.
- Dimensions & Weight: 430 × 390 × 135mm; 13kg.
₹692,900
Product Details
The Moonriver Audio 404 Reference Integrated Amplifier builds on the Model 404 platform with an upgraded power supply and stronger current delivery. First, its 50W per channel output uses a fully discrete preamp and dual-mono power amplifier.
In addition, the 107,000µF capacitor bank supports dynamic and controlled performance. The modular design accepts MM or MM/MC phono and optional USB DAC modules. Furthermore, two preamp outputs, a tape monitor loop, balance control and stereo/mono switching add useful flexibility.
Premium aluminum controls, solid walnut side panels and a reinforced chassis complete this high-end stereo integrated amplifier.
Modular Architecture
Moonriver 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.
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 therefore provides the simplest tweak towards achieving a proper soundstage.
Living 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.
It 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.
Additional information
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