Sticker Shock = four P10Q vs one ceramic Cali 15

The Californias only have one cone shape. The options are magnet type and voice coil cover dome material. If you go with a Cali, get the paper dome. The aluminum dome looks more like the old JBL/Altec speakers, but they add just a bit too much on the high end, and sound harsh. The H-screen dome wasn't available when I got my Cali, but if it's warmer than the paper dome, I'd leave that for the Fender fellas.