Currently I have Infinity Kappa 63.7i powered by Alpine CDA-9887
and Infinity Reference 9613i as rear with Infinity Kappa 120.3se powered by JBL cs60.4.
First I wanted to install a pair of tweeters but Infinity support didn't recommend.
I want to replace kappa with a set of components.
I found good reviews about
Alpine SPX-17ref and pro
Pioneer Premier TS C720PRS
Infinity Reference 6020cs
what do you recommend for SQ system?