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Adcom – GFA-555se


Adcom GFA-555se Power Amplifier

The classic award winning amplifier design
of the original GFA-555mkII has been reborn.

2.190,00 Tasse incl.

GFA-555se Finale di potenza

Il celebre progetto di Nelson Pass oggi torna in una nuova veste. Non soltanto alta capacità di pilotaggio ed erogazione di corrente.

Ma anche dettaglio, timbrica raffinata ed equilibrio grazie al nuovo Progettista.

Trasformatore toroidale Plitron.

Il Re è tornato. Ancora migliore di prima.



GFA-555se power amplifier represents the pinnacle of ADCOM’s audio engineering. This Nelson Pass design broke ground when it came out in the 80’s, getting rave reviews and providing tank-like reliability at a decent price. That these are much in demand after so much time is strong testament to their value and durability.


Better Sound Deliver

We have worked long and hard to ensure that the GFA-555se improves upon it’s original eminent version in key areas, delivering even better performance. 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 and greater stability and separation of individual instruments on the sound stage.

Specifiche Tecniche


Output Power200 watts per channel, 8 ohms
300 watts per channel, 4 ohms
600 watts, 8 ohms BRIDGED
Input Impedance 100k ohms unbalanced
10k ohms balanced
Input Sensitivity 1.75V rms, 200W into 8 ohms.
130mV rms, 1 W into 8 ohms.
Power120VAC & 230VAC / 50-60Hz
Weight36lbs (16.3kg)
Max Dimensions (W x D x H)7-1/2” x 12-1/2” x 17”
191mm X 318mm X 432mm
Frequency Resp.@ 1watt, 8-ohms:
10Hz to 20kHz +0, -0.25dB
Power Bandwidth (-3dB): 1.7Hz to 100kHz
Damping Factor≥ 900, 20Hz to 20kHz