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Musical Fidelity M3si Hi-Fi Amplifier

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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 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. Because of 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 our 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

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
  • USB - Type “B” socket up to and inc. 24 bit 96kHz USB audio stream
  • 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

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For other areas please contact us for a quote. Select items can be delivered internationally by prior agreement. Again please contact us for a quote. We will always do our best to help.

Our aim is to dispatch goods within 2 working days of an order being placed. Please allow 5 working days from the time of your order to receipt of item. If an order is expected to take longer than this our order fulfillment department will contact you to inform you of this.

Where multiple items are ordered, we will dispatch them all in one package. If you have ordered any special or customized items, or items otherwise not immediately available, we will dispatch the order when all items are available. If you have any concerns regarding this, please contact us and we will do are very best to help you.

Musical Fidelity M3si Hi-Fi Amplifier




Nintronics offers generous trade in prices to help make your next upgrade as seamless as possible, while greatly reducing the overall price of your purchase. Depending upon the items involved, Nintronics will be happy to send out one of our nationwide installation engineers to collect your traded in items and unbox, setup and calibrate your new equipment.

Musical Fidelity M3si Hi-Fi Amplifier

"Please include age, condition, make, model and serial numbers of the units you wish to trade in. Please note if you have the original accessories, boxes, invoice etc... This will help with increasing your trade in value."




Nintronics Ltd, Unit 7, Martinfield Business Centre, Welwyn Garden City, AL7 1HG
Tel: 01707 320788 Email: sales@nintronics.co.uk

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