Adcom GFA-555SE Power Amplifier

The classic award winning amplifier design of the original GFA-555mkII has been reborn. Externally, the chassis footprint and front panel design are identical to the original.
Internally, all circuitry has been upgraded to meet ETL/ETLc, FCC, LVD and CE/EMC requirements using UL approved FR-4 printed circuit boards. High performance component selections include ultra low ESR electrolytic capacitors. The result of these improvements is lower distortion, better dynamic range, improved damping factor, greater stability and separation of individual instruments on the soundstage.

200 watts per channel, 8 ohms- Stable to 1-ohm output impedance • 300 watts per channel, 4 ohms • 600 watts bridged, 8 ohms • Tremendous Power Supply Capacity. • 16 discrete output transistors • Simple gain path architecture • Specially Designed Power Supply • Custom 700 watt toroidal transformer • 60,000μF total storage capacitance • Ultra-Stable Bias Circuitry • Direct-Coupled Input and Output Circuitry • No Current Limiting • No Output Inductor Legendary Performance • Stable to 1-ohm output impedance • 16 discrete output transistors • Simple gain path architecture • Specially Designed Power Supply • Custom 700 watt toroidal transformer • 60,000μF total storage capacitance • Ultra-Stable Bias Circuitry • Direct-Coupled Input and Output Circuitry • No Current Limiting • No Output Inductor •