I am close to pulling the trigger on a paire of LSi15s from Polk ebay. I will probably get the LSi7s for surrounds and am having trouble with a matching center. It appears the LSiC center that normally matches cant be found anywhere at the moment. I dont want to pay 900+ for a center and get the LSiM. Does anyone know or have a recommendation on what I could do to make sure it is timbre matching and a good paring for the 15s? If I can't seem to find one easily, I might just go with the A9s.