Musical Fidelity A1 Integrated Amplifier

Overview

The Musical Fidelity A1 is a reimagined edition of a beloved 1985 classic, designed to revive its original charm while enhancing reliability—and it does so with remarkable fidelity to the original’s spirit. Far from a run-of-the-mill amp, this Class A-biased hybrid design offers unmatched midrange warmth, a compelling physicality in vocals, and a unique sonic character that stands apart from modern amplifiers. 

Key Features

• 25 W per Channel in Pure Class A (into 8 Ω) — While modest by modern norms, the A1 delivers clean, punchy, and dynamically engaging performance, with a notable ability to “slide” into Class B when driven hard.  
• Robust Heatsink Design — The entire top panel acts as a heatsink, reflecting its pedigree as a true Class A amplifier. Cooling has been improved in the new version for better reliability.  
• Improved Power Supply & Components — Features a dual-mono power supply, upgraded transformer, and higher-temperature rated components for enhanced performance and longevity.  
• Remote-Controlled Volume & Direct Mode — Includes a motorized ALPS pot for remote volume control and a switchable “Direct” mode that bypasses gain stages to reduce noise and improve clarity with sensitive modern sources.  
• Versatile Phono Stage — Built-in MM/MC phono preamp uses a low-noise current-mode circuit for smooth vinyl playback and automatic impedance adjustment.  
• Minimalist Analog Focus — No DAC or Bluetooth, just an analog relais of classic design with essentials like multiple line inputs, tape loop, and preamp output.  

 

 

Specifications

• Power Output: 25 W per channel (pure Class A into 8 Ω)
• Topology: Discrete symmetrical Class A design that transitions to Class B when driven hard  
• Phono Stage: Switchable MM/MC with low-noise current-to-voltage design  
• Special Functions: Remote volume control, bypass “Direct” switch (–10 dB gain)  

 

 

Performance & Sound

The A1’s sound signature is lush, expressive, and musically engaging—it brings vocals and instruments to life with remarkable scale and emotional depth. While not analytically neutral, its warmth and immersion make for a captivating listening experience.  Paired with high-sensitivity speakers like LS3/5As or 606s, it impresses with coherent, spacious imaging and enjoyable dynamics. 

Condition

The 2023 A1 reissue is in excellent condition—like-new, fully tested, and includes its metal-cased remote control. Its build displays care, with improved component layout and better thermal management, upholding the classic A1 charm while ensuring modern-day reliability.

A remarkable synthesis of vintage design and modern improvements, the Musical Fidelity A1 brings back the soul and character of a hi-fi legend, ready to drive both nostalgic and contemporary systems with elegance and energy.