Conclusion: I purchased this component set to improve midbass performance over my Alpine SPS-510 coax speakers. Initially, I gave these component sets 55 watts rms to each side. While there was an incremental improvement noticed, it wasn't until I provided 110 watts rms to each side that I really noticed a...
Summary: when used in the right application these Polk speakers are as good as any speakers on the planetI have a 1998 Mustang GT Convertible Polk db5251components up front Polk dB6501components in rearAlpine head unit CDA 148 BT Alpine amplifier PDX f6 also sound ordnance self powered sub system.
Summary: These speakers have a very good build quality and sound excellent, only downside is the crossovers are a little large so it took some time to find a decent mounting position for them but after that installation was an ease
Summary: This is the second vehicle I've installed these speakers into. Very easy to install and sound outstanding compared to factory speakers. With a good amp and bass speaker these are all the speakers you'll need, short of turning your auto into a $50,000 sound studio,
Pros: Easy install and good sound
Cons: Instructions with the speakers are a waste. If you don't know how to swap speakers, the included instructions will not help.