Conclusion: I put my Boss radio in my 1999 Ford Mustang and it's been amazing after that. I've got a lot of compliments on my radio since it's been put in. This item is a great buy. The price is unbeatable, you couldn't get a better performance with this price. It's a win win situation.
Conclusion: This is the first time I have purchased truly cheap cars speakers and it will also be the last time. I bought a second car (beater) and since the 18 year old facotry speakers were shot I decided to try some cheap replacements. The high-grade materials of these Boss speakers sold me on them. However high-grade materials mean little when one of the speakers arrives with a bad voice coil.
Conclusion: Replaced front door speakers in my 97 Volvo 850 GLT with the SE552's. The screw holes didn't line up perfect so I drilled 2 new holes through the plastic mounts, no big deal. My connectors fit fine but were a little loose so I secured them with electrical tape. The speakers sound great powered by my low-end head unit though it's only pushing 40Wx4. They will distort at high volume just like any other speaker in this price range.
Conclusion: These speakers have great range and handle the loud as well as the softer frequencies coming through them. They were easy to install and hook up. These speakers continue to ensure there is music in my life.