From whatever angle you approach describing this amplifier, there is no way around having to use superlatives. Wether it is the weight of no less than 49 Kg’s, the 2 x 300 Watt power at any load impedance, the magnificent construction, the sound, detailed yet impactful. A true masterpiece, both to behold as well as to listen to.
The new KEMET 33000 uF main power supply capacitors were slightly bigger than the original ones, so they had to be ‘shoehorned’ in… The circular clamps holding the capacitors in place are screwed into the side panels with three M4 bolts, but as a consequence of the slightly greater diameter of the new capacitors, the clamps had to be ‘stretched out’ a bit and extra holes had to be drilled into the side panels to make it all fit properly.
As far as I know the BA5000 is the only Sansui power amplifier to have four push-pull pairs of power transistors per channel. The fifth pair fitted drives the other four. Of course, all Sanken ring-emitter types…
One of the updated driver boards; I use Panasonic FC or comparable high quality electrolytic capacitors to replace the original Elna’s.
Meter illumination boards and covers all cleaned, removed fittings of the original lightbulbs, ready for the new LED’s, six per meter, two LED’s replacing each original lightbulb.
The front panel conveniently ‘folds out’ for access to the input buffer amp board, meter amplifiers and illumination boards.