Drivers for older ProAc s


I own a pair of ProAc supertowers and the drivers are shot.I have two cats!! Any ideas on where to get economical replacements.I think they are a metric size driver.Somewhere in the neighbourhood of six inches.Thanks for any help.
pats5point0ffe7
www.northcreekmusic.com has drivers and croosx components. goerge is very up on these things.
US distributor for ProAc is Modern Audio Comsultants ph 410-486-5975, ask for Richard. US prices are quite fair, esp compared to many other imports(B&W, etc).
If they are the same as the Studio 1s, you can get replacement drivers directly from ProAc. I think they cost me around $100 a piece. Otherwise look in check with companies like Madisound who sell raw drivers.