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Musical Fidelity M2si
M2si - Overview
The M2si integrated amplifier takes our premium-amp technology and applies it to a more affordable price point. Drawing upon the design philosophy and insights gleaned from our mighty TITAN flagship, along with the inclusion of high-end elements such as the robust metal controls, extruded aluminum front panel, and a chassis crafted entirely from metal, the M2si occupies an enviable position for discerning audiophiles seeking an unadulterated high-end amplifier.
Fully Discrete Power Amplifier
The M2si delivers 72 watts per channel into 8 ohms and 137 watts into 4 ohms. This means the M2si will drive a wide range of speakers, even power-hungry models. The fully discrete power amp, complemented by its dedicated power supply and generously proportioned toroidal transformer, guarantees reserves for proper peak delivery and a wide dynamic range. Power hungry and difficult speakers are driven with ease. Low impedance dips are managed gracefully and the judiciously rated output devices won‘t faulter under any load.
Precision Matched Preamp and PRE/POWER Configuration
The low noise preamp has its own, independent power supply. In effect, this means the M2si offers the performance benefits of a pre/power configuration with the compact convenience of a one-box design. For best low channel volume matching we employ a high quality Burr-Brown stepped attenuator delivering performance way above that of conventional potentiometer designs.
The Musical Fidelity Design-Philosophy
Further flexibility is provided by the M2si‘s carefully considered connectivity, which includes six line-level inputs and switchable home-theatre throughput. We have purposefully decided against a phono input or any digital high-frequency and DAC circuitry. The M2si remains committed to unadulterated sound quality over extraneous features. The introduction of digital high-frequency modules would be at odds with the nuanced performance of the analogue pre and power amplifiers, and the substantial transformer and power amp circuitry could introduce interference to delicate phono signals.
Redefining The Amplifier
With the M2si, our aim was to distill the expertise and design principles honed through our high-end amplifiers, creating an unbeatable package in this price point. Rather than burdening the analog amplifier‘s performance with superfluous features, we opted for a puristic and audiophile-oriented amplifier design that would elicit envy from owners of more costly, feature-loaded integrated amplifiers. With a true Musical Fidelity amplifier, you receive precisely what you desire. An affordable and puristic audiophile integrated amplifier for a lifetime, solely designed for the maximum of musical fidelity.
M2si In Brief
Amplifier
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
72W/8 Ohm & 137W/4 Ohm output power
Extreme power reserves for proper peak power delivery and wide dynamic range
Pure sound quality instead of features:
- No digital circuitry: no digital high-frequency modules built in
- No phono stage: huge transformer and power amp circuitry will not interfere with low level phono signals
HT-input: bypassed preamp-stage allows connecting home-theater processors to use your M2si as ultimate L/R channel amp
Preamplifier
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
Power Supply
Generously rated 280VA toroidal transformer
Independent power supplies for preamp and poweramp
Output devices, and power supply generously rated to provide peaks even into difficult to drive speakers
Mechanical Construction
Uncompromising metal work in typical Musical Fidelity tradtion
Heavy front panel milled from extruded aluminium profiles
Clean, stunning and indestructable metal exterior protects against electromagnetical interference
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Musical Fidelity M2si — refined, muscular integrated amplifier
The M2si stands out for its expansive, refined sound paired with surprising muscularity: reviewers highlight authoritative low end, detailed mids and a sweet treble that together create a large, stable soundstage. Its dynamic range and ability to drive demanding speakers with composure are repeatedly praised by What Hi‑Fi? and Audiophilepure.
Built with solid-metal controls and a neat, clean finish, the M2si feels more luxurious than many rivals. Its strengths suit listeners who want punchy, engaging playback and reliable headroom for larger systems, while accepting a deliberately minimal analogue feature set. For those prioritising sound and build at this price point, the M2si is a compelling, well‑judged choice.
Pros
- Expansive, refined tonal balance with detailed treble and expressive mids, producing a large, stable soundstage.
- Strong, unflustered dynamics and headroom—delivers impactful crescendos and handles demanding passages without strain.
- Impressive build and finish for the price, including solid metal controls and a neat, premium appearance.
- Deep, authoritative bass and ample current delivery that lets sensitive speakers play loud with confidence.
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Cons
- Spartan feature set — no phono stage, digital inputs or headphone output, making it a strictly analogue, line-level solution.
- Relatively low damping factor can lead to slightly looser bass control on larger drivers at high levels.
Sound Quality
90/100
Dynamics
91/100
Both reviews highlight strong, muscular dynamics and the ability to deliver loud, unflustered power with demanding material and loads. Comments such as 'impressive dynamics', 'unflappable composure' and 'no signs of strain' support a top-tier dynamics score for a ~72W/ch Class-AB amp.
Soundstage Imaging
89/100
The M2si is reported to image tightly with an expansive, stable and spacious soundstage, maintaining focus even in busy passages. Reviewers note good channel separation and consistent image stability at high levels.
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Build Quality
90/100
What Hi‑Fi praises the unit's fine, more luxurious-than-rivals build with solid metal controls and a neat, clean finish. The M2si feels well put together and robust for the price point.
Features Connectivity
82/100
Specs show multiple line-level inputs (six RCA pairs), tape/preamp outputs and two pairs of speaker terminals, but no phono stage, no digital inputs and no headphone output. That results in a mostly analogue, line-focused feature set—functional but intentionally minimalist.
Value for Money
90/100
Reviewers repeatedly praise the M2si as a superb all-rounder for the price, noting exceptional low‑end authority and overall performance unusual at this price point. What Hi‑Fi calls it 'one of the best amplifiers we've heard below the grand mark,' indicating strong perceived value.
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