I'm considering buying one, but did not find a lot of information on the Tek wiki about the differences between the A and C models. I assume there was a B, but information is sketchy.
I'm considering a pair of heads
SD24 or SD26
and
SD30 or SD32
Advice? Things to watch out for? I assume they are somewhat fragile given the BW.
If anyone has one to sell please contact me off list.
Thanks,
Reg