Adcom GFA-555ms Stereo Power Amplifier

ower, refined—and redefined.

The Adcom GFA-555ms builds on one of audio’s most respected amplifier legacies, reimagined for greater control, lower noise, and a more revealing presentation. Designed for those who demand both authority and finesse, it delivers high-current performance with the kind of composure that lets your system breathe effortlessly.

With 200 watts per channel into 8 ohms and 325 watts into 4 ohms, the GFA-555ms offers substantial headroom, driving even demanding speakers with ease. Its updated circuitry improves resolution and transparency, allowing finer details, deeper textures, and a more expansive soundstage to emerge.

What defines the GFA-555ms is its balance. Bass is powerful yet controlled, the midrange is open and dimensional, and the highs extend cleanly without harshness. Whether you’re listening at low levels or pushing the system, it maintains a sense of grip and clarity that keeps everything in focus.

Built with a robust power supply and Adcom’s signature no-nonsense engineering, the GFA-555ms is as reliable as it is capable—equally at home in a dedicated stereo system or a high-performance home theatre.

Key Features:

• 200 watts per channel (8 ohms) / 325 watts per channel (4 ohms)
• High-current design for demanding speaker loads
• Improved circuitry for greater transparency and detail
• Wide dynamic range with excellent control and headroom
• Solid, reliable construction with classic Adcom performance

The Adcom GFA-555ms carries forward a legacy—delivering the power, control, and musicality that have made it a reference point for generations of listeners.