MUSICAL FIDELITY M2SI

The Musical Fidelity M2si is an integrated amplifier that brings the design philosophy of the brand’s high-end models to a much more accessible price point. Its inspiration comes directly from the mighty TITAN, Musical Fidelity’s flagship reference amplifier, from which it inherits not only technical principles but also meticulous construction details. The extruded aluminum front panel, solid metal controls, and all-metal chassis convey a sense of solidity and refinement, in keeping with the brand’s tradition.

At the heart of the M2si lies a fully discrete Class A/B amplifier capable of delivering 72 watts per channel into 8 ohms and an impressive 137 watts into 4 ohms. This power output allows the M2si to drive even demanding, current-hungry loudspeakers with ease, managing low impedance drops smoothly while ensuring wide dynamics and precise control. The power stage is fed by an oversized 280VA toroidal transformer and a dedicated power supply, designed to provide generous energy reserves even during the most demanding musical passages.

Internally, the M2si adopts a dual-mono approach. The low-noise preamplifier section benefits from its own independent power supply, enhancing signal purity. Volume control is handled by a Burr-Brown stepped attenuator, offering superior accuracy and channel balance compared to traditional potentiometers—especially at low listening levels.

The amplifier deliberately omits a phono stage and any built-in digital circuitry in favor of pure sonic fidelity. This uncompromising design avoids potential interference from high-frequency electronics or the substantial power supply, preserving the integrity of the analog signal. As a result, the M2si embodies a purist vision of music listening, free from unnecessary features and fully focused on audio quality.

In terms of connectivity, the M2si offers six line-level inputs and a Home Theatre input that bypasses the preamp section, allowing seamless integration with an AV processor and enabling it to function as a dedicated amplifier for the main channels. A pre-out is also included, useful for bi-amping or connecting an active subwoofer.

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; 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 kOhms
• Frequency Response: +0, –0.1 dB from 10Hz to 20kHz
• Line Inputs: 6 pairs of RCA line-level connectors
• Line Outputs: 1 pair of constant level RCA connectors (TAPE); 1 pair of pre-out RCA connectors for bi-amping
• Speaker Outputs: 2 pairs of 4mm banana plug/binding posts
• Power Supply: 115/230VAC 50/60Hz (factory preset); alternative 100VAC 50/60Hz
• Maximum Power Consumption: 320 Watts
• Weight: 9.2 kg
• Dimensions: Width 440 mm; Height (including feet) 100 mm; Depth (including terminals) 400 mm