Basic speakers that have decent frequency response, but not much bass. Bought these for my 2008 Jeep Compass as rear-door speakers. They required an adapter plate, for the 6x9 slot in the door. These speakers are 6 1/2", but are a snug fit with the adapter. Frequncy range is 50-20kHz. They sound just ok, constructed of basic materials (made in China). They come with plenty of hardware for mounting, but the speaker wires that are included are somewhat cheap. Speaker grill and bezel were hard-pressed in place instead of a locking mechanism; be prepared to gently remove them, otherwise you may damage the grill. If you are looking for speakers on a budget, these are sufficient. You may want to consider spending $10 dollars more though & shop around to find a better pair like Pioneer, Sony, or Rockford Fosgate.