I recently just installed the Infinity Kappa 6.5 and 5.25 in my 02 WRX. I run it on Clarion receiver and kicker 4 channel amp with the stock sub. My system seem to have a lot more bass but lack of vocal sound. My oem speakers probably sound even louder (with less bass) then my Infinity. The bass is taking over and I need more high pitch sound. Should I upgrade my stock tweeters and get an EQ?