what piezo transducer is the best?

[hozone]

hello,

i've look around in google, and here, but i can't find which is the "best" piezo to use.
i've find a lot of piezo, with different specification (i suppose the most important are resonant frequency, but i don't know)
most people use radioshack piezo, 27 or 35 mm, but i'm wondering if the sound change from one to other models.

so please can some one explain me piezo differcences?

thanks,
hOZONE

[Juze]

There's also topic about piezos. Please search forums first, and IF there's no topic related to your question(s), THEN make a new post. I just want that this forum doesn't come to a great mess, like some other forums that I've been hanging around.

[hozone]

the other posts about piezo does not talk about the kind of (the manufacturer and model), or i can't find any post about this.

[Juze]

Well, I don't think that manufacturer matters.Unless you buy it from lidl You should take ceramic piezo-plate. Dunno now what else to say.