I just got my car installed the Kenwood KSC-SW11.

Clarity just improved 100% (my opinion). Very good upgrade and one of the most important upgrade if you think your stock speakers are rubbish.

I changed HU to a screen type and added this Kenwood Sub. The results are amazing.

No regrets~!

Got it at KF Audio at Sunway Mas (Amansuria), excellent installer.