The Adcom GFA-555 II is a stereo power amplifier that was first introduced in the late 1980s. It has a power output of 200 watts per channel into 8 ohms. The design features a large toroidal transformer for power supply and high-quality components for optimal sound quality.

The Adcom GFA-555 II is a stereo power amplifier that was first introduced in the late 1980s. It has a power output of 200 watts per channel into 8 ohms. The design features a large toroidal transformer for power supply and high-quality components for optimal sound quality.