Musical Fidelity Introduces M6xi Integrated Amplifier With HDMI ARC

Musical Fidelity has introduced the M6xi integrated amplifier, a $3,799 USD model that builds on the proven analog circuit design of its award winning “si” series while adding expanded digital inputs and stronger system integration. The launch comes as the brand gains renewed momentum under Pro-Ject Audio Systems ownership, alongside a more stable and focused U.S. distribution strategy through Harmonia Distribution, signaling a more aggressive push into the competitive integrated amplifier category.

Industrial Design & Chassis Construction

The M6xi is built around a rigid aluminum chassis, with the front, side, and top panels machined from extruded profiles. This all metal enclosure is engineered to reduce electromagnetic interference while providing a solid, well damped structure. The result is a clean, durable exterior that also supports consistent electrical performance.

Preamplifier Stage & Connectivity

The M6xi’s preamplifier stage is designed for low noise and stable performance across a wide range of listening levels. It employs a Burr Brown stepped attenuator to ensure precise channel matching and accurate volume control. Connectivity includes a pre-out for bi-amping or subwoofer integration, along with a phono input that supports both MM and MC cartridges.

Amplifier Stage & Power Delivery

The M6xi’s amplifier section is based on Musical Fidelity’s TITAN platform, first introduced in 2008, and delivers a slight increase in power (10 more watts) over the previous M6si. It is rated at 230 watts per channel into 8 ohms and 390 watts per channel into 4 ohms, providing the current and headroom needed for a wide range of loudspeakers.

A low distortion Darlington output stage is employed to reduce crossover artifacts and residual distortion, while an optimized PCB layout helps maintain channel balance and stability. The use of dedicated analog power supplies further limits high frequency noise and electromagnetic interference, supporting cleaner overall performance.

Connectivity 

The M6xi provides a host of connections, including 

• Optical, Coaxial, and HDMI-ARC inputs
• USB-C input
• 4 sets of RCA unbalanced  stereo Analog inputs 
• One set of Analog XLR Balanced stereo inputs
• One Line  output 
• One Pre-Amp Output
• Left and Right channel speaker terminals
• 5 V, 2 A USB-A power output for external streamers
• 12 volt Trigger
• RS232 connector for custom integration control

Another practical connection option is a home theater bypass input, allowing the M6xi to function as a dedicated two channel power amplifier within a multichannel system.

“We are delighted that Musical Fidelity has introduced the new M6xi, adding important, listener friendly features without detracting from the performance the M6si was known for,” says Jeff Coates, Musical Fidelity Brand Lead and Director of Sales at Harmonia Distribution. “We look forward to listeners experiencing it in person.”

The Bottom Line

Musical Fidelity knows exactly what it is doing here. The M6xi doubles down on traditional two channel design with serious power, a refined analog foundation, and just enough modern flexibility to make system building easier. The inclusion of a proper MM and MC phono stage, pre-out, and home theater bypass makes it more adaptable than it first appears, even without built-in streaming.

What is missing is just as clear. There is no Bluetooth, no Wi-Fi, and no onboard streaming platform. In a category where many competitors are racing to become all in one hubs, the M6xi stays firmly in the physical source camp. That is either a limitation or the entire point, depending on how you listen.

There are also gaps. Full specifications are not yet available, and without official documentation or extended listening, it is too early to draw firm conclusions about how it stacks up against rivals in this price range. That matters when you are asking close to $4,000.

The M6xi is aimed at listeners who already have a source chain they trust and do not want an amplifier cluttered with features they will never use. If your system revolves around vinyl, CD, or a dedicated external streamer, and you want power, control, and a more traditional approach, this is exactly the kind of amplifier that makes sense.

Price & Availability

The Musical Fidelity M6xi Integrated Amplifier is priced at $3,799 and is available through Authorized Dealers

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