Musical Fidelity M3Si

£1,249.00

M3Si | Integrated amplifier with USB input & MM phono Stage | The M3si integrated amplifier makes huge strides from the outgoing M3i model.

Musical Fidelity M3Si

Integrated amplifier with USB input & MM phono Stage.

The M3si integrated amplifier makes huge strides from the outgoing M3i model. More inputs, increased power and virtual monobloc power amps with their own separate power supply capacitance add up to a great new product.

The M3si offers a real taste of high-end sound quality. Because its power has increased significantly and it now has more than double the capacitance, it gives wide, stable and deep stereo images with a substantial dynamic range. More than that, the M3si offers a sweet musical sound with an effortless, clear, ungrainy quality. This is due to the virtual mono power amp configuration with increased capacitance, the bottom end is delivered with punch and excellent speed of attack. The M3si offers high quality sound with an extensive range of useful inputs in a compact package with reliability and a fair price.

The M3si uses Musical Fidelity’s exclusive SMD layout techniques. This reduced the circuit’s footprint on the large PCB and gave us greatly increased flexibility with the layout and the ability to add more inputs and, importantly, power amp power supply capacitance. Now there is a pair of big power supply capacitors for each channel. Power is a generous 90 wpc.

The new M3si now delivers a healthy 90 wpc. Distortion at 1 kHz is very low at 0.007%. Even at 10 kHz it is hovering around 0.01%. Most hi-fi amplifiers have a huge increase of distortion with rising frequency. To us this shows that the whole circuit design/layout concept is not good enough. The M3si’s very low HF distortion proves that the layout circuit and circuit design are operating in perfect harmony so that there is low distortion at HF. We believe this validates the performance and integrity of the whole design.

Signal noise ratio has been improved by more than 3dB. This is a significant step which allows more music to be heard with a greater dynamic range.

Channel separation is excellent.

The MM phono stage is high performance. It has very accurate RIAA equalisation, within ± 0.5dB from 20 Hz to 20 kHz.

The accuracy is maintained out to 50 kHz. Noise ratio is an outstanding 88dB down. Distortion is less than 0.3%. The M3si’s phono stage offers potential of great MM performance.
The 24 bit 96 kHz asynchronous USB input uses exactly the same circuitry and technology as their highly regarded V-Links and other top quality computer interfaces. Jitter is virtually eliminated. Noise is incredibly low and distortion virtually non-existent. The M3si’s USB input is capable of dredging the finest details from the computer source.

M3Si Specifications

Output
Power 85 Watts per channel into 8 Ohms

Voltage 27 Volts RMS, 20Hz to 20 kHz;
onset of clipping
76 Volts peak to peak

Current 25 Amps peak to peak

Damping factor 36

Output devices 1 pair per channel
Line input

THD+N < 0.014 % typical, 20Hz to 20 kHz Signal / noise ratio > 98dB ‘A’-weighted

Input impedance 40 k Ohms

Frequency response + 0, –0.1dB, 10Hz to 20 kHz

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

USB input

USB Asynchronous, sample rate up to and inc. 24 bit, 96 kHz USB audio stream.
Connections

USB input Type “B” socket up to and inc. 24 bit 96kHz USB audio stream
Phono inputs 1 pair Phono MM inputs

Phono grounding post 4mm banana post to chassis earth

Line level inputs 4 pairs line level RCA connectors

Line level outputs 1 pair line level RCA connectors,

PREAMP outputs for . biamping

Speaker outputs 2 pairs 4mm banana plug/binding posts

Power requirement

Consumption <0.5W in standby mode
320 Watts maximum

Weight

Unit only, unboxed 9.2 kg
in shipping carton 13 kg
Dimensions

Wide 440 mm

High, including feet 100 mm

Deep (front to back) including terminals 400 mm

Standard accessories

IEC type mains lead 10-Amp type

Remote control M3s series

Batteries LR03 or AAA

Also available in Silver

 

Brand

Musical Fidelity

Musical Fidelity has been designing and manufacturing Hi-Fi electronics for over thirty years and  are proud to have become one of the best-known brands in the Hi-Fi industry.

They are driven by a passion for wonderful music and the challenge of world-class engineering.

They approached each new design by looking for the absolute best solution to a given challenge and embrace new technologies in our designs as well as developing more traditional methods for even greater performance.

1982

Their first product – The Preamp – launched to rave reviews. Followed by shoebox-style Dr Thomas power amp.

1984

Launch of A1 integrated amp, ‘the most important development so far in the renaissance of the UK hi-fi scene’ (Hi-Fi Answers).

1986

New A370 Power Amp proclaimed ‘the best power amp I’ve ever heard’ (Hi-Fi Answers).

1987

World’s first high-end DAC- Digilog – makes debut

1988

Another world first: MVX preamp, combining tube circuit topology with transistors.

SA470 launched: 86Kg power amp running 99% in Class A

1992

A1000 integrated released, featuring pure Class A power amp section

1993

Classic valve-driven Tubalog DAC goes on sale

1995

X Series launches with X-10D Class A triode line stage: ‘the most dramatic sonic enhancement you’re likely to hear!’ (F1).

1997

Nu-Vista Preamp launched, using miniature, metal-cased nuvistor tubes. All 500 units sold within three months.

X Series expands with X-ACT DAC, praised for ‘smooth, easy-going sound’ (What Hi-Fi?)

1998

X-24K upsampling DAC released: ‘capable of getting sound to die for’ (Stereophile).

X-Ray CD player launched. Described as ‘the sort of object you just want to fondle’ (Hi-Fi News) ‘a thrilling, substantial and satisfying listen’ (What Hi-Fi?) and ‘Hi-Fi meets nuclear warhead’ (T3).

2000

Futuristic CD-PRE 24 arrives, combining a high-quality CD transport, DAC and preamp. On Hi-Fi says it ‘represents a combination of features, functional performance and affordability that seems an audiophile dream come true’.

Debut of Nu-Vista M3 pre/power amp, including discrete Nu-Vista power amp modules with choke regulation. ‘This is what hi-fi should be all about’ (Gramophone).

X-DAC V3 released, offering ‘stunningly good measured performance’ (Stereophile).

2002

World’s first audio application of trivistor tubes in new Tri-Vista series, including legendary Tri-Vista 21 ‘Super DAC’.

2003

Flagship kW pre-amp and kW power amp launched: ‘the very finest amps you can buy…the MFs redefine audio standards’ (What Hi-Fi?)

Next up: kW 500 super integrated amp with twin-triode tubes. Hi-Fi News said, ‘For one rare reviewing occasion I could not find a thing to fault about the musical presentation of an amp’.

Limited-edition M1 turntable released. Considered one of the best-engineered decks ever, it’s now a collector’s item, fetching above its original price.

2004

Supercharged X-DAC V8 introduced, with switchable tube buffer and extra-heavy-duty power supply. ‘For its superb performance as a detailed, sweet-sounding DAC, the X-DAC V8 stands on its own’ (Stereophile).

X-150 wins European Stereo Amplifier of the Year, EISA Awards 2004-2005.

2006

Debut of kW250S one-box wonder, packing in dual 250-watt monobloc amps, tube hybrid preamp, phono stage, 24-bit 192K upsampling CD player, FM/DAB tuner and iPod input.

2009

Meet the mighty TITAN: 1kW per channel dual monobloc design with external power supply. Hi-Fi News was ‘Smitten… The Titan is the best power amplifier I’ve used’.

Reference-standard Primo pre-amplifier released; pure Class A with 14 hand-picked ECC81

2011

New M1 CLiC unites analogue and digital sources under universal control. Wins European Network Music Player, EISA Awards 2011-2012.

2012

Line-up expands to meet every hi-fi need and budget. Highlights include the AMS CD/DAC – our finest digital product yet – and AMS100, the world’s most advanced pure Class A amp

Additional information

Colour

Black, Silver

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