I mentioned on one of my other post how great this system sounds. I've compared it to most of the trucks out there (Titan's Fender, F-150's B&O Unleashed, GM/Chevy's Bose, Tundra's JBL) and IMHO it sounds better than all of them. That same HK system sounds even better in my wife's Jeep GC though. To get that rounded out punchy base (that doesn't rattle), I've had to add a sub in my last two Ram trucks with HK audio. That's just for my personal taste and I rock out hard and loud! In either case, it's likely one of the best factory systems and adding a sub with a small mono amp isn't a heavy priced upgrade if that's what you choose to do.