Ensure that the internal bias settings are checked by a technician, as vintage Musical Fidelity gear often ran quite warm by design to achieve lower distortion.
Its primary strengths are its that can breathe life into digital sources and complement analog systems beautifully. For the audiophile seeking a classic British sound with a nostalgic charm , the FX remains an excellent choice.
Ideal for long cable runs, providing maximum rejection of external electromagnetic interference.
The Musical Fidelity FX power amplifier occupies a unique place in the history of high-end audio engineering. Released during a transformative era for British hi-fi, this rare amplifier remains a highly sought-after gem for audiophiles who value pure, musical analog amplification. While Musical Fidelity is globally recognized today for its massive, high-power designs like the M6s or the titan-class Nu-Vista series, the vintage FX amplifier represents a time when the company focused heavily on delivering maximum sonic purity from simpler, smaller chassis designs. The Origin and Design Philosophy musical fidelity fx power amplifier
| Amplifier | Output Power (W) | THD (%) | SNR (dB) | Frequency Response (Hz) | | --- | --- | --- | --- | --- | | Musical Fidelity FX | 2 x 125W | < 0.01% | > 100dB | 20Hz - 20kHz | | Krell K-300i | 2 x 150W | < 0.015% | > 90dB | 20Hz - 20kHz | | Mark Levinson No. 585 | 2 x 125W | < 0.02% | > 85dB | 20Hz - 20kHz |
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
: Due to their heavy Class A bias, these units run extremely hot; reviewers noted they can significantly warm a listening room during operation. Hybrid Topology Ensure that the internal bias settings are checked
If you are looking to purchase a used Musical Fidelity FX today, keep the following in mind:
Like all electronic components from the late 80s and early 90s, the electrolytic capacitors inside the FX may be reaching the end of their natural lifespan. Budgeting for a professional recap (replacing old capacitors) can restore the amplifier to its original factory performance and guarantee another few decades of operation.
The F2 is a highly capable preamplifier in its own right. It includes: Ideal for long cable runs, providing maximum rejection
The is more than just an old amplifier; it is a piece of hi-fi history that delivers a genuinely engaging and satisfying musical experience. In a world increasingly dominated by mass-produced, feature-packed devices, the FX is a reminder of a time when engineering was focused on the purity of the music.
Leo replaced the resistor with the factory spec. He closed the chassis, powered it up, and let it cook for an hour.
Despite its sweet tonal balance, an FX power amp is no slouch when it comes to raw power. It controls the bass drivers of complex, low-impedance loudspeakers with absolute authority. Low frequencies are delivered with exceptional grip, speed, and definition, avoiding the loose or boomy bass that plagues lesser power supplies. Expansive Soundstage