7-Channel Power Amplifier Musical Fidelity M6x 250.7

Musical Fidelity M6x 250.7

If you’re a dedicated audio enthusiast or a home theater aficionado, the Musical Fidelity M6x 250.7 7-Channel Power Amplifier is a name that’s likely to resonate with you. Packed with seven channels of raw power and a class A/B architecture, this amplifier aims to redefine your audio experience. In this comprehensive review, we’ll delve into its design, performance, compatibility, and quality, assessing whether its £3,099 price tag is justified.

M6x 250.7
M6x 250.7 – images: Musical Fidelity

Design and Build Quality

The M6x 250.7 stands as a testament to Musical Fidelity’s commitment to excellence in both form and function. The amplifier boasts a sleek, minimalist design with a brushed metal finish that exudes a sense of sophistication. The front panel is adorned with a series of LEDs that elegantly indicate the operational status of each channel, adding a touch of modern aesthetics to your audio setup.

Under the hood, the build quality is nothing short of exceptional. The robust chassis not only contributes to the amplifier’s durability but also aids in heat dissipation, ensuring optimal performance during prolonged use. The attention to detail is evident in every component, reflecting Musical Fidelity’s dedication to crafting audio equipment that stands the test of time.


Raw Power and Precision

The M6x 250.7 boasts an impressive power output of 7x 250W at 4 ohms, with a peak power of 400W. This sheer magnitude of power ensures that the amplifier can effortlessly drive even demanding speaker setups, delivering a room-filling audio experience. The class A/B architecture strikes a delicate balance between efficiency and sonic purity, offering the best of both worlds.

At the heart of performance lies an incredibly low Total Harmonic Distortion plus Noise (THD+N) of 0.003% at 100W power output. This figure speaks volumes about the amplifier’s ability to reproduce audio faithfully, maintaining the integrity of the source material without introducing unwanted artifacts. Whether you’re enjoying a symphony or an action-packed blockbuster, the M6x 250.7 promises a distortion-free listening experience.

Frequency Response and Signal-to-Noise Ratio

The frequency response of 20Hz to 20kHz within 0.5dB ensures that the amplifier faithfully reproduces the entire spectrum of audible frequencies. This wide frequency range is crucial for capturing the nuances of different instruments and vocals, creating a detailed and immersive soundstage. The Signal-to-Noise Ratio (SNR) of 105dB at 1kHz and 200W power output further attests to the amplifier’s ability to maintain clarity even during dynamic audio passages.M6x 250.7


The M6x 250.7 is well-equipped in the connectivity department, offering a versatile array of inputs and outputs to accommodate various audio sources and configurations.

The M6x 250.7 presents both a gold-plated RCA and a balanced XLR input for each channel. When your preamp features XLR outputs, opting for a balanced connection is highly recommended. This method of signal transmission not only enhances dynamics but also reduces noise, resulting in improved signal-to-noise ratios. For scenarios where you require the same signal across multiple inputs, such as bi-amping, the gold-plated RCA through output proves invaluable, enabling seamless distribution to the subsequent input.

Moreover, the gold-plated isolated speaker output terminals provide versatility by accommodating 4 mm Banana plugs, spade connectors, or naked wire. This adaptability ensures a secure and efficient connection with various speaker cables, meeting the preferences of discerning audiophiles.

Adding to its convenience, the amplifier features a trigger input and output. This functionality allows for the synchronization of power on/off cycles with other components in your audio setup, contributing to a more streamlined and automated user experience.

Input Options

The amplifier provides flexibility with 7x line level RCA inputs and 7x line level balanced XLR inputs. This variety ensures compatibility with a wide range of audio sources, from traditional stereo setups to more advanced multichannel systems. The input sensitivity of 700mV at RCA input and 1.4V at XLR input allows for seamless integration with a multitude of preamplifiers and audio sources.

Output Options

The inclusion of 7x line level RCA through outputs adds another layer of convenience, enabling easy daisy-chaining of multiple amplifiers or connecting to external recording devices. The 7x pairs of speaker terminals provide a solid and secure connection for your speakers, ensuring a reliable signal path and minimizing any potential signal degradation.

Musical Fidelity M6x 250.7
Musical Fidelity M6x 250.7

Trigger Input & Output

For those who value automation in their audio setup, the M6x 250.7 features a trigger input and output. This allows the amplifier to be integrated into a broader home automation system, ensuring that it powers on/off synchronously with other components in your entertainment system.

Unique Features

Robust Software Integration

In addition to its formidable hardware, the M6x 250.7 also boasts intelligent software integration. The amplifier incorporates advanced protection circuitry that safeguards against overheating, short circuits, and DC faults. This not only prolongs the lifespan of the amplifier but also provides peace of mind for users who demand reliability from their audio equipment.

Effortless Cooling System

The amplifier’s cooling system deserves special mention. The strategic placement of heat sinks and the overall thermal design contribute to efficient heat dissipation, ensuring that the amplifier remains cool even under demanding conditions. This feature not only enhances the amplifier’s longevity but also contributes to consistent performance over extended listening sessions.

Price vs. Value

At £3,099, the Musical Fidelity M6x 250.7 7-Channel Power Amplifier positions itself in the upper echelon of amplifiers in terms of price. However, as the saying goes, “you get what you pay for,” and in this case, the investment is justified. The amplifier’s impeccable build quality, powerful performance, and versatile connectivity options make it a contender for anyone seeking a premium audio experience.

Musical Fidelity M6x 250.7
Musical Fidelity M6x 250.7


In the realm of high-end audio, the Musical Fidelity M6x 250.7 7-Channel Power Amplifier stands tall as a powerhouse of sonic prowess. Its robust design, intelligent software integration, and uncompromising performance make it a worthy investment for audio enthusiasts who demand nothing but the best.

From the first glance at its sleek exterior to the moment you immerse yourself in its crystal-clear sound, the M6x 250.7 leaves an indelible impression. While its price may be a consideration for some, those who prioritize top-tier audio quality and reliability will find that the investment is well justified.

In conclusion, the Musical Fidelity M6x 250.7 7-Channel Power Amplifier is not just a piece of audio equipment; it’s a statement—an affirmation of your commitment to an unparalleled audio experience. If you’re ready to elevate your audio setup to new heights, the M6x 250.7 is more than up to the task.

Related posts

Cello M3220G Full HD Gaming Monitor Review


Onkyo TX-8470 vs Sony STR-DH190 vs Yamaha R-N2000A


Cyrus Power-XR Amplifier – Review


QLED 4K TCL 55C745K – great picture quality and sound performance


Xiaomi Mi Box S – powerful Budget Android TV box


Receiver Review: StormAudio ISR Fusion 20 AV


4K Ultra HD LG OLED83C34LA TV + Soundbar Recommendations


Discover the Unique Sound of Vinyl: Best Turntables for Audiophiles


TCL 115X955K Max TV – Stunning 115-Inch 4K Ultra HD Performance