Don't be fooled by the bad reviews
2013 Hyundai Elantra
As stated above, don't be fooled by the bad reviews. Most of the bad reviews are for the following reasons: A.) They just replaced stock speakers, nothing else B.) Not hooked up to any type of amp C.) Don't have an amp but have it connected to some crappy $100-$150 head unit. D.) Just don't know how to properly tune speakers. I had these in my 2013 elantra coupe with a set of DXi 651 co ax in the back paired with an older R/F p2 12" ported box sub and the speakers were connected to a KTP-445U Apline power pack/brink amp. I was blown away. In fact I've rebought the exact same system to put in my 2012 Genesis coupe. I've had professional sound guys (competition sound guys) tell me this is one of the best sounding consumer driven systems they've heard. These polks are designed to have better/crisper highs and mids while, unfortunately sacrificing some lows. They are they perfect balance between crisp/clean high ends with good drive (not distorted) from the sub. If you are looking to just replace speakers and not have them amped with a conventional amp or power pack amp or something better than a run of the mill aftermakret head unit then these are probably not going to be for you. You're better off with some Apline type-s's were the high ends aren't really all that great but provide a much better low end. However, pair them with a good amp and/or sub and you won't find a better combination of speaker set up.
Pros: Can't find a better speaker combination set up when paired with an external (non- head unit) amp and/or subwoofer
Cons: Probably sound too tinty or too much treble if just replacing speakers or only hooking them up to a run of the mill head unit.