Musical Fidelity M6x DAC


The M6x DAC benefits from Musical Fidelity’s knowledge and experience with ESS Sabre DAC chips, due by end of September, pre-order now

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Musical Fidelity M6x DAC

Musical Fidelity M6x DAC

The Musical Fidelity M6x DAC is a complete high-end solution, designed to convert almost any digital audio format in the highest quality.

Its sophisticated DAC architecture is coupled to a class-leading analogue stage that introduces your digital music to the Musical Fidelity sound for true sonic superiority.  

The M6x DAC benefits from Musical Fidelity’s knowledge and experience with ESS Sabre DAC chips.

Featuring two ES9038 Q2M chips in dual-differential mode, the rest of the electronic layout employs a dual-mono design principle.

The inclusion of a Time Domain Jitter Eliminator results in superb technical measurements and low noise with an unbelievably detailed transient response.

There is also a new re-clocking and upsampling section, where the upsampling process can be manually turned on or off.

To effectively manage such a sophisticated digital stage, the M6x DAC features 16-core XMOS and CPLD MAX II Altera processors ensure there is always enough headroom for these operations.

This over-specification also allows the DAC to effectively support its new digital filters and MQA processing.

The M6x DAC can support high-resolution PCM files up-to 32-bit / 768kHz over USB (24-bit / 192kHz over other connections).

It can also support DSD256 stereo DoP signals and DSD512 in stereo native.

To suit modern trends, it is also a full MQA decoder and supports MQA signals over any of its inputs for absolute system flexibility.

It is also Roon Tested, for simple plug-and-play operation in Roon.

To fully customise the sound, there are then seven digital filters available to try, or you can choose to select “Oversampling Bypass” to disable them and listen only to the original recording.

Elsewhere in the electrical layout, the M6x DAC has been optimised for first-class audio performance.

Straight from when the power signal arrives, it is delivered through an industrial-grade power socket that is coupled to an EMI filter and DC blocker to stop interferences.

The encapsulated toroidal transformer has extremely low electromagnetic radiation and is optimised for audio applications.

The rest of the layout is then purpose-designed to tackle the unique requirements and challenges when managing both digital and analogue circuits. 

Further connection of the M6x DAC is customisable to suit different system set-ups.

The built-in headphone amplifier‘s current-feedback AB architecture delivers high bandwidth, extremely low noise, and up to 128dB of dynamic range.

This high-fidelity design prevents odd-order distortion anomalies, delivers current-on-demand during demanding music tracks without introducing noise, and delivers a wide frequency range whether listening at quiet or loud levels.

When a pair of headphones is connected, the balanced (XLR) and single-ended (RCA) outputs on the rear panel are muted.

But when headphones are not connected, these outputs can be set to fixed or variable – allowing you to use the M6x DAC as a fixed-level source or as a pre-amplifier for direct connection to active speakers or a power amplifier.

The RCA and XLR outputs each have their own output buffer.

Both output stages deliver superior audio quality, exhibit exceptionally low noise, large output voltage swing and high current drive.

The excellent gain bandwidth and very fast slew rate produce exceptionally low distortion to achieve that iconic Musical Fidelity sound.

The Musical Fidelity M6x DAC is built into a chassis that shares the same aesthetic as other Musical Fidelity M-Series products and provides good electromagnetic isolation and a sturdy housing for the internals.

Control is effortlessly simple via the clearly marked front-panel controls or using the supplied remote control (which also controls other Musical Fidelity devices).

Once plugged-in and installed correctly, the M6x DAC will immediately sing like nothing else you have experienced.

The whole sound is sweet and clear; the treble is completely grain free and extended.

The bottom end sounds endless with tactile bass dynamics.

Key Features: Musical Fidelity M6x DAC

  • Full-feature digital-analogue converter (DAC)
  • Roon Tested certification and full MQA decoding
  • Support for up-to 32-bit / 768kHz PCM and DSD256 (DoP) or DSD512 (stereo native)
  • Two ES9038Q2M DAC chips in dual-differential mode
  • Re-clocking function and switchable upsampling
  • Seven different digital filters and oversampling bypass option
  • Optical, Coaxial, AES/EBU and USB input options
  • Balanced (XLR) and unbalanced output options
  • Built-in high-performance headphone amplifier
  • Fixed or variable output options for wider system integration possibilities
  • M6 series chassis adds extra weight and vibration/interference resistance
  • Made in Europe
  • Available in Black and Silver finishes

Specifications Musical Fidelity M6x DAC

Specifications Musical Fidelity M6x DAC
Audio Formats Supported: Up-to 32-bit / 352.8kHz PCM

Up-to DSD256

Internet Radio: TuneIn
Streaming Services: Tidal, Qobuz, Spotify, HIGHRESAUDIO
Supported Data Protocols: Roon Ready (RAAT), Shairport, DLNA, UPnP
Inputs: 2 x USB A (max. current draw 1A)

1 x USB B (PC Detox Input)

1 x Ethernet (Network)

1 x Wi-Fi 802.11 b/g/n/d/e/h/i

1 x Bluetooth (BT Classic + EDR v2.1, v3.0, v4.0 Low Energy)

Outputs: Audio optimised USB A

HDMI (video only)

Outboard Power Supply: 18V / 1A DC
Accessories: Wi-Fi Antenna
Dimensions W x H x D 9with sockets): 220 x 56 x 223mm

Additional information


Black, Silver


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

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