M3si – Overview

The M3si integrated amplifier delivers high-quality sound, offering extensive input options, high reliability, compact size, and a reasonable price. With a robust 85 watts per channel, the M3si can drive a wide variety of compatible speakers. It features inputs for phono (MM), four line inputs, and USB ‘B’ for up to 24-bit 96 kHz.

The M3si’s sound is effortless, clear, and smooth, projecting wide and deep images with ample power for excellent dynamic range.

The M3si is unconditionally stable and can easily drive any suitable loudspeaker.

Despite being Musical Fidelity’s most affordable amplifier, it embodies the brand’s core values of uncolored, stress-free sound, outstanding technical performance, and excellent value for money.

M3si Highlights

• 85W per channel
• Excellent technical performance
• Preamp output
• Unconditional stability, suitable for any loudspeaker
• Wide range of useful inputs, including asynchronous USB and MM phono
• Excellent build quality and convenient size

M3si – Specifications Amplifier

• Power output: 85 Watts per channel into 8 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

• 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