Ohm wich one?

Im experimenting with an E-drum build.In a nut shell,im going to glue Piezo's on the underside of a drum head with a thin foam layer between.One in the middle and three around the edges.The three will be wired together to one zone.The piezo's are going to be to hot so I want to control them with resistors and a potentiometer for each zone before they go to the drum module.

My question:

Would a 1 ohm resistor be strong enough to start and then reduced accordingly or should I start bigger?

Would I use a 1K ohm potentiometer or bigger?

Also,am I correct in assuming that you can wire 3 piezos together..any issues there?

This is the stuff im not familiar with at all.

Thanks for any replies.

Ohm wich one?