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Musical Fidelity M3si Integrated Amplifier


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Enquiry/price check? Click here SKU: MM3SI
Ex VAT: £957.50
The popular M3si model is essentially an upgraded version of the M2si integrated amplifier with the addition of a high quality built-in phono stage.

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Warranty length 2 Years
Brand Musical Fidelity

Tech Specs

- Power output: 85W p/ch @8O
- THD+N (20Hz-kHz): <0.014% typ
- SNR: >98dB ‘A’-weighted
- Freq response: –0.1dB, 10-20k Hz
- Input: 4x RCA / Line Level
- 1x USB type 'B' connector
- Asynchronous: up to 24-bit/96kHz
- 1x MM Phono input


Phono In
- Sensitivity (nominal): 3mV
- Suitable cartridges: 1.5mV+ incl MC
- Input impedance: 50kΩ
- Signal/noise ratio: >70dB 'A'-weighted
- Freq Response (20Hz-kHz): RIAA/IEC ±1dB


- Dimensions (WHD): 440 x 100 x 400mm
- Weight: 9.2kg

Product Description

Musical Fidelity M3si integrated amplifier with an inbuilt DAC produces premium grade sound and features a large range of convenient inputs while providing high reliability, compact dimensions and a fair price.

Connectivity Options

Musical Fidelity paid special attention to the connectivity options when creating the M3si. Building on from the M2si amplifier, it now features more an extensive range of inputs. It has inputs for phono (MM), 4 line and USB ‘B’ up to 24bit 96 kHz, a low noise phono stage enables direct connection of a turntable for vinyl listening. An asynchronous USB input connects to computer-based home audio to enable complete quality playback of digital media up to and including 24 bits, 96kHz sampling rate.

Powerful Sound 

With a powerful 85 watts per channel, M3si will power a huge variety of appropriate loudspeakers. M3si’s sound is effortless, clear and sweet. It projects broad and deep stereo imaging and packs plenty of punch to deliver an excellent dynamic range. Your hifi system is rid of grainy sound and the increased capacitance allows for a fast and energetic delivery of the low end.

Asynchronous USB input

The technology and circuit design in the 24 bit 96 kHz asynchronous USB input is employed from Musical Fidelity's acclaimed V-Link models. Similar to the highest quality computer interfaces, jitter is kept to an absolute minimum and noise and distortion is virtually eliminated. The M3si’s USB input is able to highlight the finest musical details from the computer source.

Excellent Technical Performer 

M3si is unconditionally stable and able to drive any appropriate loudspeaker with ease. It embodies hallmark values of unblemished, stress-free sound, excellent technical performance and incredible value for money. This amplifier will enhance any home audio system, and provide exceptional and reliable power.

Key Features:

- 85 Watts per channel
- Excellent technical performance
- Preamplifier output
- Unconditional stability driving any loudspeaker
- Many inputs incl asynchronous USB and MM phono
- Excellent build quality and convenient size
- Built in, low noise phono stage
- 24 bits, 96kHz sampling rate

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Contact Details

UK Local Rate Number
0844 50 403 50

Sales Landline
0121 224 7300/7401

Customer Services Landline
0121 224 7350/7351

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