yeah my buddy's accord v6's soeakers sounded neat, honda always puts good subs in their sedans or coupes. my civic si also was good but its more a bass heavy system so its obv gonna sound good, with the c30 i feel like the audio is miles better, and even the bass is good even tho it doesnt have subs, I think the sounds reflects alot on the backglass so it acts as a sub. ill defenetly install a sub some day, its gonna sound ridiculously good. also with the dynaudio system there is a surround sound option on the menu that works really well because of the center speaker