Hi,

I'm looking to make a mosfet power amp, to drive a spring reverb unit. This is to go in a modular synth, so I would ideally like it to run off the available +/- 15V supply available. I was looking at this one -http://sound.westhost.com/project83.htm   

How much power do i need to effectivley drive the Springs? R6 would need to be increased i imagine, and could i just replace ground with the -15V ??

If I'm completely barking up the wrong tree here could you suggest something more suited?
I'd like to make it mosfet based, and run off the dual power supply, but searching the forum could find little information.

Cheers for any help i get!

Josh