Musical Fidelity A1 Pure Class A Integrated Amplifier

A True Hi-Fi Classic Reborn
Originally released in 1985, the A1 became an icon in Hi-Fi design and performance, renowned for its ability to drive challenging speakers despite its modest power output.
The 2023 reissue stays true to the original design, with identical specifications, circuits, and appearance, while incorporating modern upgrades for improved performance.

Pure Class A Topology
Delivers 25W of pure Class A power into 8 ohms with a dynamic sliding mechanism that allows seamless transition into Class B-style operation for increased current draw when needed.
Features a fully discrete and symmetrical circuit design for exceptional sound purity and detail.

Updated Power Supply
Equipped with a new dual mono split rail transformer, offering independent left and right power supplies for improved stereo imaging and power handling.
Enhanced efficiency reduces noise, heat dissipation, and ripple, ensuring a cleaner power supply to the amplifier stages.

Versatile Phono Stage
Features a discrete current-mode input stage for ultra-low noise amplification of MM and MC cartridges.
Automatic impedance matching for MC inputs and enhanced gain deliver superior vinyl playback versatility.

Modern Features with Classic Design
Includes a new "Direct" switch at the preamp stage, bypassing the gain block for approximately 10dB less gain, ideal for modern high-output digital sources and
sensitive loudspeakers.
Upgraded with a motorized ALPS RK series volume potentiometer for precise control and remote functionality, offering convenience without compromising performance.

Warm, Sweet, and Musical Sound
The A1’s signature sound is sweet, warm, full, and fluid, delivering a beautiful atmosphere around natural instruments.
Handles difficult speakers with ease, maintaining clarity and precision right up to its power limit.

Timeless Aesthetics and Functionality
Retains its iconic oversized heatsinks, which are both functional and visually striking.
A perfect example of “form follows function,” with a design that celebrates simplicity and utility.

The Musical Fidelity A1 Integrated Amplifier is more than an amplifier—it’s a piece of Hi-Fi history, now updated for modern audiophiles while staying true to its roots. With its warm, natural sound and classic design, the A1 remains a cherished choice for music lovers. 🎶

“More than most amps I'm familiar with, the Musical Fidelity A1 integrated amplifier engages my brain's right and left hemispheres in roughly equal fashion. That's its chief virtue. And that is something very few amps at any price can do.”–  Herb Reichert, Stereophile Magazine