Musical Fidelity

M3si Stream

Name: M3si Stream
Brand: Musical Fidelity
SKU: MUSICAL-FIDELITY-M3SI-STREAM

Streaming Music System

Series M3 Series

The M3si Stream is a high performance integrated amplifier with WiiM Mini for streaming add-on.

At a glance

All specifications

Power: 85 W per channel
Signal to Noise Ratio: >98dB ‘A’-weighted
Frequency Response: +0, –0.1dB, 10Hz to 20 kHz
Signal / noise ratio: >70dB ‘A’-weighted
Input impedance: 50k Ohms
Dimensions - WxHxD (mm): 440 x 100 x 400

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Features5
Downloads2
Awards and press8

Overview

The M3si integrated amplifier produces high quality sound, has an extensive range of useful inputs and offers high reliability, compact size and a fair price. With its strong 85 watts per channel, the M3si will drive a huge variety of appropriate loudspeakers. It has inputs for phono (MM), 4 line inputs and USB ‘B’ up to 24bit 96 kHz.

Highlights

WiiM Mini adds modern streaming
Streamlined and easy setup
Countless streaming services and options
Best of both worlds:
Classic analogue high-end amplifier
Modern streaming in a separate box
High-end circuitry inspired by TITAN
Fully discrete transistor based Class A/B power amp design
Drives power hungry speakers with ease and gracefully manages low impedance dips
85W/8 Ohm & 150W/4 Ohm output power
Extreme power reserves for proper peak power delivery and wide dynamic range
HT-input: bypassed preamp-stage allows connecting home-theater processors to use your M3si as ultimate L/R channel amp
Low noise design for best THD and signal integrity at low as well as high levels
High quality Burr-Brown stepped attenuator for better channel matching than conventional potentiometer designs
Pre Out for bi-amping with M6sPRX or active subwoofer connection
USB input with meticulously careful digital circtuitry layout to minimize HF interference
Phono input for turntables with MM or high-output MC cartridges
Uncompromising metal work in typical Musical Fidelity tradtion
Clean, stunning and indestructable metal exterior protects against electromagnetical interference

Features

Fully Discrete Power Amplifier
The M3si delivers 85 watts per channel into 8 ohms and 150 watts into 4 ohms. The M3si’s sound is effortless, clear and sweet. It projects wide and deep images and has plenty of power to deliver excellent dynamic range. The M3si is unconditionally stable and will drive any appropriate loudspeaker with ease.
The Musical Fidelity Design-Philosophy
Although it belongs to Musical Fidelity’s lower priced amplifiers, it embodies our hallmark values of uncoloured, stress-free sound, outstanding technical performance and great value for money. Our aim was to distill the expertise and design principles honed through our high-end amplifiers, creating an unbeatable package in this price point.
Musical Fidelity NOW streams
We’ve seen a surge in offerings from HiFi companies with all-in-one solutions, sometimes with big displays on top. Unfortunately, such developments mean that sound quality suffers. At Musical Fidelity, we acknowledge that any WiFi or BT circuitry generates a substantial amount of RF pollution and distorts analogue amp circuitry when incorporated into integrated, one-box solutions.
Musical Fidelity stands for sound quality and robust design that lasts for decades
We INVEST our money and resources in top-tier hardware and the pursuit of optimal music reproduction. Robust mechanics - Discrete circuits - Huge transformers - Class A/B amps. No HF and RF distortion. We aim to have the best hardware and sound quality in every price range and make true high-end affordable. We are partnering with one of the best STREAMING SPECIALISTS - the US Californian high-tech company LINKPLAY.
The M3si Stream includes a free WiiM Mini
The separate box and separate power supply ensure that we reduce RF and HF radiation and we can keep our analog amplifier technology as good as it is. LINKPLAY offers state-of-the-art technology, seamlessly compatible with any contemporary streaming service on the market, all navigable through an INTUITIVE and user-friendly APP. Moreover, their consistent maintenance and software updates ensure an optimal user experience.

Specifications

Power: 85 W per channel; How much power it delivers to each speaker into its rated load.
Inputs: 4x Line Level RCA / Phono 1x USB type ‘B’ connector - Asynchronous data stream at up to 24-bit/96kHz 1x MM Phono input; The sources you can connect.
Model code: MUSICAL-FIDELITY-M3SI-STREAM; Quote it when you ask a specialist.

Amplifier

Power output: 85 Watts per channel into 8 Ohms; 150W into 4 ohms; 288W peaks into 2 ohms
THD(+ noise): <0.014 % typical, 20Hz to 20 kHz
Signal to Noise Ratio: >98dB ‘A’-weighted
Frequency Response: +0, –0.1dB, 10Hz to 20 kHz

Inputs

Inputs: 4x Line Level RCA / Phono 1x USB type ‘B’ connector - Asynchronous data stream at up to 24-bit/96kHz 1x MM Phono input

Phono Input

Sensitivity (nominal): 3mV (suitable for cartridges giving 1.5mV or more including high output MC types)
Signal / noise ratio: >70dB ‘A’-weighted
Input impedance: 50k Ohms
Frequency response: RIAA/IEC ±1dB, 20Hz to 20 kHz

General

Dimensions - WxHxD (mm): 440 x 100 x 400
Weight (unpacked / packed): 9.2 kg/ 13 kg

Downloads

M3si Stream User Manual (English)Manual · English · PDF, 447 KB
Download
M3si Stream Information Sheet (English)Datasheet · English · PDF, 564 KB
Download

Awards and press

"This is an amplifier that sounds far beefier than it's spec sheet would lead you to believe. In fact it exhibits such control over virtually any loudspeaker we connected to it and does so with an ease that you would come to expect from costlier components or more powerful ones."
Recovering audiophile
"The Musical Fidelity M3si reproduces music powerfully, excitingly, vividly and wonderfully smoothly. We have never heard better sound in its price range. It is also beautifully finished and well equipped with USB and a very good phono input."
HIFI.de
"Sonically perfect, even a wide gate to the audiophile class!"
Stereoplay
"Sensational in this class."
audio
"Can satisfy all along the line. Outstanding!"
Audio Test
"He plays with a wide, realistic stage panorama and crisp bass."
Mint
"With liveliness and playfulness, the M3si scales the sympathy ladder. Outstanding!"
Stereo
"With the M3sCD a classy midprice combo with genuine appeal."
Hi-Fi Choice