Analogue only, concentrating everything on amplification
M2si is a 2x72 W integrated amplifier with six line inputs, separate supplies and no digital or phono circuitry.
M2si is designed for listeners who already own their sources and want the amplifier to perform one job. Six RCA inputs accept external DACs, streamers, CD players or phono stages; omitting digital conversion and phono circuitry prevents high-frequency modules or tiny cartridge signals from sharing a chassis with the large transformer. Compared with M2xi it gives up integrated convenience, but offers a purer analogue path and greater source freedom.
Key features
- 2x72 W into 8 ohms and 2x137 W into 4 ohms
- Fully discrete Class A/B power amplifier
- Low-noise preamplifier with dedicated supply
- 280 VA toroidal transformer
- Six RCA line inputs and HT bypass input
- Pre out for bi-amping or an active subwoofer
For listeners who already own a DAC and phono stage
M2si does not duplicate functions already present in a modular system. An owner of a dedicated DAC, a streamer with analogue output or a phono preamplifier selected for a particular cartridge can connect each component without paying for internal conversion. This approach also simplifies upgrades: a digital source can change without touching the amplifier, while system character remains determined by the chosen components.
Reserve matters more than the headline number
The rise from 72 W into 8 ohms to 137 W into 4 ohms shows a supply able to deliver current as impedance falls. Musical Fidelity also specifies 242 W peaks into 2 ohms. That does not make every speaker an automatic match, but explains why M2si can handle more demanding models than its price may suggest. In a medium room it favours control and dynamics without oversizing the system.
From stereo to a mixed-purpose system
The HT input bypasses the internal volume control, allowing a home-cinema processor to command the front channels. The pre output instead serves an active subwoofer, bi-amping or a future power amplifier. M2si can therefore remain at the heart of music listening when a living room gains cinema duties, keeping roles separate without surrendering its six analogue inputs.
