The original GFP-555 was designed to complement the GFA-555, and is favored by collectors for its phono stage, featuring a low-output moving-coil phono option (100 ohm impedance) as well as variable capacitance loading on the moving magnet phono input. This particular piece comes from a single owner, and is in excellent condition.
- Production
- 1986-90
- Condition
- 9/10
- Serial No.
- 69120916
- Restoration
- Full 30-point service check
- Cleaned controls, switches, and chassis
- Factory Specs
Frequency response 5Hz to 85kHz
Total harmonic distortion 0.003%
Input sensitivity 2.2mV/cm (MM/MC), 200mV (line)
Signal to noise ratio 90dB (phono), 100dB (line)
Channel separation 75dB (line)
Output 2V (pre out)
Dimensions 17"W x 3"H 12"D
Weight 11.5 lbs.
- Documentation
Adcom GFP-555ii Owner's Manual
- Liner Notes
A look under the hood of the GFP-555 shows it to be an extremely simple layout. Only two pairs of short ribbon wires, a blue one for each of the selector knobs, and a black pair for the phono section, and that’s it. The simple gain-path philosophy is readily apparent. There really are not many components soldered onto the board, helping to explain the rather relaxed, non-technical sound.
- Stock No.
- 7681988264157
The original GFP-555 was designed to complement the GFA-555, and is favored by collectors for its phono stage, featuring a low-output moving-coil phono option (100 ohm impedance) as well as variable capacitance loading on the moving magnet phono input. This particular piece comes from a single owner, and is in excellent condition.
