The FX series was easily recognizable by its mechanical design. Featuring heavy-gauge aluminum faceplates and prominent external heatsinks, the chassis was built like a tank. The heavy metalwork served two vital functions:
: Discrete MOSFET output stage, typical of Musical Fidelity's vintage design philosophy. Sonic Characteristics
) is defined by its hybrid design philosophy, often blending tube-like warmth with massive solid-state "grunt". HomeTheaterReview Sonic Profile
The FX was engineered as a pure amplifier for a significant portion of its output. This operating mode is prized by audiophiles for its inherently low distortion and ability to reproduce music with a smooth, natural, and "tube-like" character, as it keeps the output devices constantly conducting current, eliminating crossover distortion. However, this design choice comes with a trade-off: high heat output . The FX runs very warm to the touch, a hallmark of a genuine Class A design, and a sign that its power supply and output stage are operating in their most linear region. musical fidelity fx power amplifier
Because the amplifiers bias heavily into Class A operation at lower wattages, they generate significant heat. The external cooling fins kept the internal output transistors operating within their optimal temperature zones, ensuring long-term reliability. The Sonic Character: What Makes It Special?
Cons
So, how does the Musical Fidelity FX power amplifier perform? In a word, exceptionally. This amplifier is capable of delivering a level of sound quality that's simply breathtaking, with a dynamic range that's both wide and detailed. The FX amplifier's soundstage is expansive and immersive, with precise imaging and a sense of depth that's hard to match. The FX series was easily recognizable by its
The 1990s were a transformative period for Musical Fidelity. Having achieved mainstream success with the A1 in the mid-80s, the company used the following decade to push the boundaries of high-end amplifier design. This era saw the launch of ambitious projects like the massive A370 power amplifier and the development of new series that would cater to a broader range of audiophiles.
Compared to its contemporaries, the FX is said to offer a tighter and more potent low-end, providing a solid foundation for the music [1†L31-L33]. This makes it an exceptional partner for speakers that are known to be a difficult "load," as it offers the current and control to drive them properly. The pure Class A operation ensures that the midrange is liquid and textured, while the high-frequency response is extended but never harsh.
He turned the volume knob past the point where it had previously gone berserk. Sonic Characteristics ) is defined by its hybrid
The Musical Fidelity FX power amplifier boasts a sturdy, compact design that exudes elegance and sophistication. The amplifier's chassis is crafted from high-quality aluminum, providing excellent durability and thermal conductivity. The unit's compact footprint makes it easy to integrate into any home audio setup, while its substantial weight ensures stability and resonance damping.
Musical Fidelity FX Power Amplifier: A High-End Rarity The is a powerhouse power amplifier, known for its neutral, transparent sound and exceptional build quality . Key Specs & Performance Massive Power: Delivers high wattage with ease. Dual-Mono Design: Separate power supplies for each channel. Low Distortion: Pristine signal path for pure audio. Built to Last: Overbuilt chassis and high-grade components. Sound Signature
The Musical Fidelity FX is a load-invariant amplifier, meaning its power output scales efficiently as speaker impedance drops. This makes it an exceptionally versatile partner for a wide variety of loudspeakers.
