Sansui AU-2900 & TU-3900

Selling my beloved Sansui AU-2900 amplifier with matching TU-3900 tuner.
Sansui AU-2900 can boast OCL power circuit, with dual-transistor differential amp in the initial stage, that gives low distortion, noise-free stable tonal quality.They were for a long time with me as the preferred vintage collection set for listening. Now I need to make room, hence selling them with a heavy heart...
Rather rare stylish optics with metallic aluminium controls on a black unit. Sweet Sansui sound, praised by numerous reviews online:

https://www.hifiengine.com/manual_library/sansui/au-2900.shtml

Amplifier specs:
Power output: 15 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 40kHz
Total harmonic distortion: 0.3%
Damping factor: 50
Signal to noise ratio: 90dB (line)
Channel separation: 57dB (MM)
Dimensions: 400 x 120 x 240mm
Weight: 5.7kg
Year: 1976

Both units in a very good optical condition.
Some age-related scratches.
Working excellent, can drive pretty demanding speakers such as Advent Graduates or KEF Cadenza.
Testing welcome