KD-
The SL B-101 has a much lighter chassis/base, no suspension, the motor & tonearm are not as robust as the one on the 1200s. It's really an entry level ttable. Sadly, it's under repair right now.
The difference? The 1200Mk3 because of the better, heavier construction presents a fuller, richer sound and a surprisingly quiet background despite being a direct drive. This 'table rocks!
BTW, sa dami ng Technics ttable ni hypertriode,
LBM na 'yan(kami ni KD
DOUBLE TAE only)!