Musical Fidelity M6xi Integrated Amplifier

A Powerhouse That Doesn't Act Like One

Musical Fidelity built the M6xi to deliver serious power. It does that without demanding a serious footprint. It does not demand a serious price tag either. Twin monoblock-style power amplifier stages push 220 watts per channel into 8 ohms. Into 4 ohms they push 320 watts.

There are 45 amps of peak-to-peak current on tap. That is there for the moments that call for it. A Darlington output configuration improves linearity. It also reduces crossover distortion. The design traces back to Musical Fidelity's flagship Titan platform. It is scaled into a chassis that fits a normal equipment rack.

What Musical Fidelity Didn't Cut Corners On

Volume runs through a Burr-Brown stepped attenuator. It was chosen for accurate channel tracking at every listening level. A fully analog power supply feeds the preamp. It feeds the power stages too.

The panels are extruded aluminum. They are milled rather than stamped. That gives the M6xi rigidity. It also gives it the shielding a design like this deserves. At just over 18 kilograms, it is substantial without being unwieldy. It comes finished in black or silver.

Your Turntable and Your TV Both Plug In

A built-in phono stage handles both moving-magnet and moving-coil cartridges. A turntable connects without an outboard phono preamp. Digital connectivity is thoroughly modern. HDMI with eARC brings a television's audio straight into the amplifier.

USB-C replaces the older USB-B standard. Coaxial and optical inputs round out the digital side. They decode up to 24-bit/192kHz. A rear USB-A output supplies 5V/2A. It can power an external streaming device directly from the amplifier.

Built for a Real Room

Four RCA inputs and one balanced XLR input cover a full analog system. A dedicated home theater bypass input keeps the M6xi in sync with a surround processor. That matters when it is part of a larger setup. An RS232 interface supports custom-installation control systems.

No Headphone Jack, and What to Use Instead

A variable RCA output supports bi-amping or a subwoofer. A second RCA output is fixed. It is intended for feeding an external headphone amplifier. That matters, because the M6xi itself doesn't include a front-panel headphone jack.

What Reviewers Are Saying

David Price is Global Editor-in-Chief of StereoNET . He reviewed the M6xi this year. He called it "a big integrated amplifier that hasn't been told how little it costs." He described it as a "powerhouse, with dynamics, authority and grip that should frighten many more expensive designs."