Published On: April 29, 2026

These New Musical Fidelity Amps Fix a Big Problem in Stereo Systems

Published On: April 29, 2026
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These New Musical Fidelity Amps Fix a Big Problem in Stereo Systems

Musical Fidelity is updating its M-Series with the M5xi and M6xi, adding features that make them easier to use in real-world systems.

These New Musical Fidelity Amps Fix a Big Problem in Stereo Systems

  • Nemanja Grbic is a tech writer with over a decade of journalism experience, covering everything from AV gear and smart home tech to the latest gadgets and trends. Before jumping into the world of consumer electronics, Nema was an award-winning sports writer, and he still brings that same storytelling energy to every article. At HomeTheaterReview, he breaks down the latest gear and keeps readers up to speed on all things tech.

Musical Fidelity has introduced two new integrated amplifiers, the M5xi and M6xi, and the basic idea is easy to understand: these are still proper two-channel hi-fi amps, but they now play more nicely with modern sources.

That means you get things like HDMI eARC for TV audio, USB-C for digital playback, optical and coaxial inputs, a phono stage for turntables, and even a USB power output for an external streamer. What you do not get is built-in streaming. So, no app platform, no onboard Spotify Connect, no internal network player. Musical Fidelity is leaving that part to your WiiM, Bluesound, Eversolo, or whatever streamer you already use.

That may sound old-school, but it also keeps the concept clean. The M5xi and M6xi are designed to be the center of a stereo system, not another all-in-one box trying to do ten different jobs at once.

Front view of Musical Fidelity M5xi integrated amplifier with central volume knob
Rear panel of Musical Fidelity M5xi showing speaker terminals and inputs

The M5xi is the more affordable model, while the M6xi steps things up with more power and a balanced XLR input. Both are aimed at listeners who want a serious integrated amplifier but do not want to give up practical everyday connections.

The M5xi is rated at 160 watts per channel into 8 ohms and 240 watts into 4 ohms, while the M6xi steps up to 220 watts into 8 ohms and 320 watts into 4 ohms. In normal living-room terms, that means both amps should have enough output for many full-size speaker setups, but the M6xi is the one to look at first if you have larger speakers, a bigger room, or speakers that like a bit more power behind them.

The most useful change here is not just more power. It is how much easier these amps should be to fit into a real-world system.

Front view of Musical Fidelity M6xi integrated amplifier with large central volume dial
Rear panel of Musical Fidelity M6xi showing balanced XLR inputs and speaker terminals

A lot of people now use their main stereo system for more than just music. The same speakers may be used for vinyl, streaming, CDs, TV, movies, and games. That is where the new input mix makes sense.

Both the M5xi and M6xi include:

  • HDMI eARC for connecting a TV
  • USB-C, optical, and coaxial digital inputs
  • MM/MC phono input for turntables
  • Four RCA line inputs
  • Home theater bypass
  • Pre-out and line-out connections
  • RS-232 control for custom installations
  • 5V/2A USB-A power output for an external streamer

That USB-A port is not for playing music from a flash drive. It is there to power a small external streamer, which is actually more useful in many setups. Instead of adding another power adapter behind the rack, you can run the streamer from the amplifier itself.

Internal view of Musical Fidelity M6xi showing toroidal transformer and dual mono layout
Musical Fidelity M6xi

Musical Fidelity also says the digital and HDMI sections are kept separate from the analogue sections and use their own linear power supply. In simple terms, that means the company is trying to add modern digital convenience without letting those circuits interfere with the analogue side of the amp.

HDMI eARC is probably the headline feature for many buyers, even if it is not the most “audiophile” thing on the spec sheet.

With HDMI eARC, you can connect your TV directly to the amp and use your stereo speakers for streaming apps, movies, sports, YouTube, and games. You do not need to run everything through an AV receiver just to get TV sound into your hi-fi system.

That is a practical move. Plenty of people want better TV sound but do not want a full surround system. Others already have good stereo speakers in the room and would rather use those than buy a soundbar. The M5xi and M6xi fit that kind of setup well.

Angled view of Musical Fidelity M5xi amplifier with large volume knob

The home theater bypass input is also useful. It allows the amp to work inside a larger home theater system, where an AV receiver or processor controls volume for movies, while the Musical Fidelity amp handles the front left and right speakers.

So, which one makes more sense? The M5xi looks like the more sensible choice for many buyers. It has the same general feature set, including HDMI eARC, USB-C, phono input, analogue inputs, digital inputs, and streamer power. It is also the less expensive of the two.

The M6xi is the one to consider if your system needs more muscle. It adds more power, a larger chassis, and a balanced XLR input. That last part matters if you are using a higher-end DAC, CD player, or streamer with balanced outputs.

Close-up of Musical Fidelity M6xi amplifier internals with capacitors and circuit board

Here is the simple breakdown:

  • M5xi: Better fit for smaller to medium-size rooms, many standard speaker setups, and buyers who want the new features without moving to the more expensive model.
  • M6xi: Better fit for larger rooms, more demanding speakers, and systems where balanced XLR connectivity matters.

Neither model is really aimed at someone building a tiny desktop setup or looking for an all-in-one streaming amp. These are more traditional integrated amplifiers that have been updated for the way people actually use audio systems today.

Both amps include an MM/MC phono stage, so they can work with moving magnet and moving coil cartridges. That is helpful because it means turntable owners may not need to buy a separate phono preamp right away.

Of course, some vinyl users will still prefer an external phono stage, especially in more expensive systems. But having MM and MC support built in makes the M5xi and M6xi more flexible out of the box. It also keeps the system cleaner for people who do not want another small component and another set of cables.

Hand pressing input button on Musical Fidelity M5xi amplifier

The Musical Fidelity M5xi is priced at £2,099 / €2,290 / $2,690, while the M6xi is priced at £2,699 / €2,990 / $3,499. Both models are available in black or silver finishes.

At those prices, these are not casual upgrades. They sit in the part of the market where buyers are likely comparing them with serious integrated amps from brands like Marantz, Rotel, Cambridge Audio, Arcam, NAD, and Hegel. The difference is that Musical Fidelity is leaning into a mix of old and new: big integrated amplifier power, phono support, TV-friendly HDMI eARC, and no built-in streaming platform to age out over time.

That last bit may be the main point. Streamers change quickly. Apps change. Services come and go. A good amplifier can stay in a system for much longer. With the M5xi and M6xi, Musical Fidelity seems to be betting that many buyers would rather keep those two jobs separate.

For anyone building a modern two-channel system around a TV, turntable, external streamer, and a pair of serious speakers, these new amps make the setup easier without changing the basic hi-fi formula too much.

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