More expensive sibling of the KA-2200, the L-03A has all of the L-02A circuit design at less than half the price.
Sigma-Drive terminals and amp/speaker NFB loop, Dynamic Linear Drive, FET phono inputs, copper-plated chassis, triple-frequency loudness switch with level control (à la L-08C) and a muting fader (à la KA-1000) etc ; the last tests and measurements were done in november 1982.
Plus, compared to the KA-2200, a solid aluminium volume knob, separable pre/main loop and gold-plated terminals.
It should be noted that while both the KA-2200 and L-03A were launched at the same time and after the official launched of CD (and not DAD anymore) both kept the DAD name and relegated it to an auxiliary input...
A beautifully intricate design (center strip) sadly marred by boring black-is-black choice but an amp making lively and nevertheless delicate music.
Mr Nisi's page and a real one here.