MUSICAL FIDELITY M2SI

Pre owned. In excellent condition. Free from evident signs of wear. Supplied with remote control, user manual, and original packaging.

The Musical Fidelity M2si is an integrated amplifier that brings the design philosophy and engineering principles of the brand’s high-end models into a far more accessible category. Inspired directly by the flagship TITAN amplifier, it inherits not only its technical approach but also its meticulous attention to construction quality. The extruded aluminum front panel, solid metal controls, and full metal chassis convey a strong sense of solidity and refinement, fully reflecting the classic Musical Fidelity aesthetic.

At the core of the M2si is a fully discrete Class A/B amplifier design capable of delivering 72 watts per channel into 8 ohms and 137 watts into 4 ohms. This generous power output allows the amplifier to drive demanding loudspeakers with ease, maintaining excellent control even under difficult impedance loads while preserving impressive dynamics and authority throughout the frequency range. The output stage is supported by an oversized 280VA toroidal transformer and a dedicated power supply engineered to provide substantial current reserves, even during the most demanding musical passages.

The M2si also adopts an internal dual-mono configuration. The low-noise preamplifier section benefits from its own independent power supply, contributing to superior signal purity and improved channel separation. Volume control is handled by a precision Burr-Brown stepped attenuator, offering significantly greater channel balance and accuracy compared to traditional potentiometers, especially at lower listening levels.

In pursuit of maximum sonic fidelity, the amplifier intentionally excludes both a phono stage and integrated digital circuitry. This uncompromising design choice eliminates potential interference generated by high-frequency electronics or complex internal processing, preserving the integrity of the analog signal path. The M2si embraces a purist philosophy focused entirely on sound quality, free from unnecessary features or distractions.

Connectivity is equally versatile and thoughtfully implemented. The amplifier features six line-level inputs along with a dedicated Home Theatre input that bypasses the preamplifier stage, allowing seamless integration into an AV system as a power amplifier for the main channels. A pre-out connection is also included, making the M2si suitable for bi-amplification setups or connection to an active subwoofer.

The overall sonic presentation is powerful, transparent, and highly musical, combining excellent detail retrieval with warmth, control, and dynamic expression. Whether paired with compact bookshelf speakers or demanding floorstanding designs, the M2si delivers a confident and refined listening experience that reflects Musical Fidelity’s long-standing reputation for producing amplifiers with exceptional musical engagement and engineering integrity.

Technical specifications:

• Output power: 72 Watts per channel into 8 Ohms; 137 Watts into 4 Ohms; 242 Watts peak into 2 Ohms
• Output voltage: 22 Volts RMS from 20Hz to 20kHz at clipping limit; 62 Volts peak-to-peak
• Output current: 25 Amps peak-to-peak
• Damping factor: 36
• Output devices: 1 pair per channel
• Line input THD+N: < 0.014% typical from 20Hz to 20kHz
• Signal-to-noise ratio: > 96 dB (A-weighted)
• Input impedance: 40 kOhm
• Frequency response: +0, –0.1 dB from 10Hz to 20kHz
• Line inputs: 6 pairs of RCA line-level connectors
• Line outputs: 1 pair of fixed-level RCA outputs for tape; 1 pair of RCA pre-out outputs for bi-amplification
• Speaker outputs: 2 pairs of 4 mm banana plug / binding post terminals
• Power supply: 115/230VAC 50/60Hz (factory preset); alternative 100VAC 50/60Hz
• Maximum power consumption: 320 Watts
• Dimensions: 440 mm width; 100 mm height (including feet); 400 mm depth (including terminals)
• Weight: 9.2 kg