what is the difference between the different models of technics? which is the most widely used? and which should you buy?

First of all, welcome on board.

Second of all, I don´t know the answer to that question but u should ask in the Dj secction. I´m sure u would get more help there then in here.

Robstar's right, this is not the right forum but you're new here and now you know...
Anyways:

The SL-1200 is the first one, in black colour, the SL-1210 MK2 is Silver coloured and has a switch between 110 DC and 220 DC (Thesed are the only differences) and the M3D has a quartz lock button the brings the pith to 0 just by pressing it, which helps prevent the pitch slide wear out around the -0.5-<0<+0.5 .

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Check My Music

Thanks guys for you replies. Sorry it's not in the right forum, I will learn them all in time.

Bear

Just a little correction, even it's not the correct forum:

Both of 1200 and 1210 have voltage selector.