Bought some Infinity reference 9623i 6X9's. They are 2 ohm 100W RMS so I keep the gain on the amp at zero and use the 4 volt setting on my SXRC. I have so much control with this amp it ridiculous. They sound real good for being a mid grade 6X9. I still would like to get another set of kicker RS's in the back but these will do for now. Now it's time to work on the Bass