GFA-585se

About the GFA-585se

The Adcom GFA-585se is a muscle amplifier capable of delivering very large peaks into low impedances, exceeding 50 amperes per channel[1]. It represents a modern revival of Adcom's classic designs, with every component carefully selected and upgraded for improved performance[7]. The amplifier features balanced and unbalanced inputs, is bridgeable into a powerful monoblock configuration, and is designed to drive low impedance speaker systems down to 2 ohms[7]. Laboratory testing by Newport Test Labs measured both-channels-driven power output into 8Ω as 496 watts per channel, exceeding the 450-watt specification, with the ability to deliver this power consistently across the entire audio spectrum from 20Hz to 20kHz[1][5]. The frequency response extends from 1.5Hz to 216kHz at the 3dB down-points, demonstrating both flat and extended response characteristics[1][5]. The amplifier weighs 32kg and measures 275 × 482 × 502mm, requiring substantial rack or floor space[5].