Summary: I bought these for the rear deck in conjunction with some smaller units for the front doors in my 1994 Cadillac DeVille. Wow. The sound quality of these speakers was much better than I expected for the price. The amount of low-end bass they carried was truly shocking, and they're running off the factory head unit. I highly recommend these as an upgrade for factory speakers, especially for the low price.
Pros: Big, deep, rich bass. No distortion at nice, thick volumes. Highs and mids were clear and present.
Cons: Only thing I could possibly say is that they might have too much bass if your head unit doesn't have EQ capability to fine-tune, but that might be from the very large trunk and large interior of the Cadillac.
Summary: Purchased these speakers to place in the back of an SUV. Since my vehicle has a factory amplifier, I had additional wiring available behind the aftermarket Pioneer HU, These were installed in speaker boxes for use when tailgating, camping, etc. The sound quality is excellent for the price. Clear highs, and lows without distortion at decent volume. Quality construction, simple and classic look.
Pros: Crisp, clear sound, quality construction, great value
Summary: This is a good sounding speaker. It took only a couple of days to break them in. However, for what I paid for them, this speaker sounds great. If your looking for something that won't break your pocket and sounds nice, I don't think I could of done better. Good over all range.
Pros: Sounds good and cheap. Best bang for your buck.
Cons: For my 1998 honda accord, the hole pattern did not match the factory ones and hard to make new ones.
Summary: Overall, great speakers! We selected our speakers by going to the new Crutchfield store in Charlottesville, VA which I highly recommend to those with that option as their new car audio simulator was very helpful is selecting the right speakers for our application. On to the speakers. The difference between these and the stock speakers was night and day. The lows were stronger, the highers existed finally!
Pros: Excellent highs, mids and lows, especially compared to stock speakers. Wish I'd done this a long time ago!
Cons: Have found no cons with the speaker, but all 6x9 speakers for rear deck of Corolla will require an adapter which must be purchased elsewhere.