Adcom GFA-555 SE
The mere fact that ADCOM has been making hifi for over 25 years and that the original GFA-555 was their flagship for so much of that time should be enough to put this amp on the shortlist for those in the market. A classic high power solid state design that can drive any speaker without worry and at the low end of the price range for serious hifi, this amp is a winner.
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.
I suspect that the Adcom is going to force many designers in the $1000-$1500 range to either make radical improvements in their products over the next six months, or look at the possibility of retiring from competition. This is a “must” amplifier to audition before you spring for anything close in price. If the Adcom is simply the first of a whole wave of good amplifiers, it will help revitalize the high end for the average audiophile, and force most manufacturers into more reasonable pricing. Now, Adcom, if you can only come up with a preamp as good!—Anthony H. Cordesman
Read more at https://www.stereophile.com/solidpoweramps/678/index.html#XCVJGTOWJF5D7GLO.99
- Design: Two-Channel Power Amplifier
- Output: 200 Watts RMS x 2 into 8 Ohms
- Inputs: RCA and XLR; Bridged Operation Supported
- 60,000 uF capacitance
- MFR: 10 Hz – 20 kHz +0, -0.25 dB
- Input Impedance: 27dB
- Output Impedance: Not specified
- Input Sensitivity: 1.75V RMS for Full Output into 8 Ohms
- THD+N: 0.003% @ 1 kHz (200W into 8 Ohms)
- IMD: <0.002% (200W into 8 Ohms)
- Damping Factor: >900 (20 Hz – 20 kHz)
- MSRP: $1,400 USA