Hi,

Is there any real difference between Technics model numbers ending A and D,
for example, the CD players SL-PS670A and SL-PS670D (except the years they
we produced)?

What is AA all about (my ST-GT550 tuner apparently has AA output)?

Has Technics stopped making hi-fi separates? Looking at Panasonic/Technics
sites I can only see complete hi-fi systems.

Thanks for any info.

John.