Summary: These speakers are great. I got them three years ago on a great discount, and I can tell that they are very good quality. I put them in the back of my 1990 Accord, and I just recently upgraded the front speakers as well with another brand. These Alpines are still better.
Summary: These speakers produce a clear and rich sound. They're far and away better than the factory speakers (to Toyota's credit, the factory ones lasted 10 years). Being newly installed, I've only run them for a handful of hours. I'm guessing they'll sound even better after their break-in period.
Summary: Bought these to replace OEM door speakers on Honda Accord, along with Alpine SPS-69C3 speakers for rear shelf. Install was easy. Carefully removed interior door panel & removed OEM speaker. Only had to drill 4 1/8" holes to attach mounting spacer.
Summary: Coupled with Alpine's SPS-69C3 in the rear, the sound in my car is quite amazing. Installation on my 94 Accord Sedan was fairly simple - just don't be afraid to apply some pressure when removing the front door panels.
Summary: These Alpine's are really clear and tight. They provide great balance for my new car stereo. These specs - 92 db and 32 htz - campare favorable to almost any other high-end car speakers available.