The GFP-555 was designed to complement the classic GFA-555, and is well known for its very good 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.

Recapped - All electrolytic capacitors were replaced with very high quality, audio grade electrolytic capacitors. Switches and pots cleaned. 

The preamp only is for sale, not the NAD power amplifier in the first picture.

Specifications

Frequency response: 5Hz to 85kHz

Total harmonic distortion: 0.003%

Input sensitivity: 2.3mV (MM), 200mV (line)

Signal to noise ratio: 90dB (MM), 100dB (line)

Channel separation: 75dB (line)

Output: 2V (Pre out)

Dimensions: 432 x 289 x 76mm

Weight: 5.2kg