Musical Fidelity M6xi Integrated Amplifier
In stock
Features
| XLR Inputs | No |
|---|---|
| Brand Color | None |
| Headphones Socket | No |
| Warranty The length of time your product is protected by warranty | 2 Years |
| Product Type | Other |
Tech Specs
Amplifier Output
- Continuous power (both channels driven, @1 % THD, 1 kHz): 220 W per channel (8 ohm)
- Continuous power (both channels driven, @1 % THD, 1 kHz): 320 W per channel (4 ohm)
- Continuous power (both channels driven, @0.09 % THD, 20 Hz–20 kHz): 210 W per channel (8 ohm)
- Continuous power (both channels driven, @0.09 % THD, 20 Hz–20 kHz): 300 W per channel (4 ohm)
- Peak power (both channels driven, @1 % THD, 1 kHz): 280 W per channel (8 ohm)
- Peak power (both channels driven, @1 % THD, 1 kHz): 450 W per channel (4 ohm)
- Output voltage: 43 V RMS (20 Hz–20 kHz, onset of clipping)
- Peak-to-peak voltage: 121 V
- Peak-to-peak current: 45 A
- Damping factor: 49 (8 ohm)
- Output devices: 2 pairs per channel
Line Input Performance
- THD+N: <0.007 % (20 Hz–20 kHz)
- Signal-to-noise ratio: >107 dB (A-weighted)
- Input impedance: 40 kohm
- Frequency response: +0 / –0.1 dB (10 Hz–20 kHz)
Inputs
- 4 x line level RCA inputs
- 1 x HDMI eARC input
- 1 x coaxial input
- 1 x optical input
- 1 x balanced XLR input
- 1 x phono input (MM/MC)
- 1 x USB Type-C (up to 24-bit / 192 kHz)
Outputs
- 1 x line level RCA (tape output, fixed level)
- 1 x line level RCA (preamp output)
- Speaker outputs: 2 pairs (4 mm banana / binding posts)
- 1 x USB-A (5 V / 2 A power output)
- 1 x RS232 (D-sub)
Phono Input
- Sensitivity (nominal): 3 mV (MM), 0.4 mV (MC)
- Gain: 40 dB (MM), 60 dB (MC)
- Signal-to-noise ratio: >87 dB (A-weighted)
- Input capacitance: 220 pF
- Input impedance: 50 kohm (MM), 1 kohm (MC)
- Frequency response: RIAA/IEC ±0.4 dB (20 Hz–20 kHz)
Power
- Mains supply: 115 / 230 V AC, 50/60 Hz (factory preset)
- Alternative supply: 100 V AC, 50/60 Hz
- Power consumption: 680 W (maximum)
Dimensions and Weight
- Dimensions (W x H x D): 440 x 125 x 400 mm
- Weight: 18.5 kg (unpacked)
- Weight: 22 kg (packed)
Description
The Musical Fidelity M6xi Integrated Amplifier represents a refined evolution of one of the brand’s most celebrated designs, combining immense power with exceptional musical realism and emotional engagement. Building on the success of the earlier M6si, this updated model introduces meaningful improvements across every critical section, from amplifier topology to connectivity and internal layout.
Designed to meet the expectations of modern audiophiles, the M6xi delivers a balance of precision engineering and expressive sound reproduction. Its performance is rooted in technology derived from the flagship TITAN amplifier, bringing reference-level design principles into a more accessible format.
The result is a powerful, versatile integrated amplifier that offers both technical excellence and an immersive listening experience across a wide range of music and system configurations.
Advanced Amplifier Topology and Power Delivery
At its core, the M6xi features a fully discrete dual-mono amplifier configuration, effectively operating as two independent monobloc power amplifiers sharing a single chassis. This design ensures superior channel separation, stability, and control.
The low-distortion Darlington output stage, arranged in Musical Fidelity’s classic configuration, eliminates crossover artefacts while maintaining exceptionally low residual distortion. With output ratings of 220 watts per channel into 8 ohms and 320 watts into 4 ohms, along with impressive peak power reserves, the amplifier effortlessly drives even the most demanding loudspeakers.
Its oversized encapsulated toroidal transformer and fully analogue power supplies minimise noise and electromagnetic interference, resulting in a cleaner signal path. This combination of power, control, and refinement allows the M6xi to deliver a wide dynamic range and authoritative performance without sacrificing musical subtlety.
Precision Preamplifier Design
The preamplifier section of the M6xi has been engineered with a strong emphasis on signal integrity and low noise performance. It maintains exceptional clarity and tonal accuracy across both low and high listening levels, ensuring that fine musical details are preserved regardless of volume.
A high-quality Burr-Brown stepped attenuator replaces conventional potentiometers, providing precise channel matching and stable stereo imaging. This results in a more accurate soundstage and consistent tonal balance throughout the listening experience. The preamplifier also includes a pre-out connection, enabling flexible system expansion such as bi-amping or integration with an active subwoofer.
Careful PCB layout and circuit optimisation further reduce distortion and interference, allowing the preamp stage to operate with remarkable transparency and neutrality, forming a solid foundation for the amplifier’s overall sonic performance.
Enhanced Phono Stage and Vinyl Performance
Vinyl playback is given equal importance in the M6xi, with a newly developed phono stage supporting both MM and MC cartridges. This upgraded section benefits from improved shielding, refined circuit design, and optimised PCB layout, all of which contribute to lower noise and distortion levels.
The result is a phono input capable of revealing the full warmth, depth, and dynamic nuance of vinyl recordings. High-gain amplification stages, which are particularly sensitive to interference, are carefully protected through enhanced isolation and strategic component placement. The transformer and power supply sections are encapsulated to further reduce electromagnetic interference within the chassis.
These design choices ensure that even the most delicate signals from a turntable are reproduced with exceptional clarity, allowing vinyl enthusiasts to experience their collections with greater realism and detail.
Modern Connectivity and System Integration
The M6xi has been designed to integrate seamlessly into contemporary audio systems, offering a wide range of connectivity options. It includes multiple RCA inputs, a balanced XLR input, and a home theatre bypass that allows the amplifier to function as a dedicated power amp within a multichannel system.
Digital connectivity has been significantly expanded, with HDMI eARC, optical, coaxial, and USB-C inputs supporting high-resolution audio up to 24-bit/192kHz. A dedicated RS232 interface enables custom installation and advanced system control.
Additionally, the amplifier features a high-quality isolated USB-A power output, providing a clean and stable power source for external streamers. Separate digital circuit boards and independent linear power supplies ensure that digital and analogue sections remain isolated, preventing interference and preserving the integrity of the analogue signal path.
Engineering Excellence and Build Quality
The construction of the M6xi reflects Musical Fidelity’s commitment to durability and performance. Its chassis is built from thick, extruded aluminium panels, providing both structural rigidity and effective shielding against electromagnetic interference.
This robust enclosure acts as a Faraday cage, protecting internal components from external noise while also preventing interference from affecting other equipment in the system. The careful mechanical design minimises the impact of vibrations, further enhancing sonic clarity.
Internally, meticulous attention has been paid to component placement and circuit layout, ensuring optimal performance and reliability. Every aspect of the amplifier’s construction is designed to support its high-end performance, from the quality of the materials used to the precision of its assembly, resulting in a product that is both visually striking and technically accomplished.
A Complete High-End Listening Experience
The Musical Fidelity M6xi Integrated Amplifier brings together advanced engineering, powerful performance, and modern versatility in a single, cohesive design. Its combination of dual-mono amplification, refined preamp circuitry, enhanced phono stage, and comprehensive connectivity makes it a highly adaptable solution for both traditional and contemporary audio systems.
Whether driving demanding loudspeakers, integrating into a home cinema setup, or revealing the subtleties of vinyl playback, the M6xi consistently delivers a natural, detailed, and engaging sound. It embodies the brand’s philosophy of making true high-end performance more accessible without compromising on quality.
For listeners seeking a powerful yet refined amplifier capable of handling a wide range of sources and applications, the M6xi stands as a compelling and thoroughly modern choice.