If the first two were rubbish doesn't it answer your own question, that they're all different?Or was it the pre-amps making them rubbish?
I dont know much about the technicalities of piezo's but i saw,i think it was Shuker ,describing their's as "360 degree" piezos so there must be differences?
[quote name='owen' post='439569' date='Mar 19 2009, 06:54 PM']I'm on my third, and the first two were RUBBISH. I had given up on the whole thing really, but my present one is LUSH. My DB has a piezo buffered by a Summit Audio TD 100 and it sounds fabulous. I suspect that a well seated piezo will work as long as it is well buffered. I just dont want to find that they can be different as magnetic pickups can after I lay my £ down[/quote]