Summary: I replaced my door speakers with the Helix B5X 5.5 inches. I found that they have excellent high tones. I am not impressed with low tones. Actually if I increase to much the bass the sound distorted. If you have larger drivers in your car these are a great addition, otherwise they do not provide enough bass by themselves.
Summary: Good repalscement speakers for my 98 Volvo V70 XC AWD. A whole lot better than the stock speakers. Decent bass, but, if you want thumping bass, then you better get a sub-woofer, as I plan to do in the near future. Overall, I am very satisfied with them.
Summary: These speakers might be good for a very small car, they are listed as good fit for 2014 Accord, they are much smaller than the original speakers, even with the bracket they do not fit simply because you'll be left with a big gap around the speaker! After spending 3 hours dissembling the front door and desperately trying to make it fit, it simply did not work and I'm returning them.
Summary: these speakers were a huge improvement over my 70$ a pair kenwood 6 1/4" speakers, yes even though those were a inch or so larger, these have a much better and more sensitive response. I don't believe I will put another brand of speaker in my car again.
Summary: Purchased for a really nice 1993 Chrysler LeBaron convertible. The speakers fit in the door pockets fine, but the screw holes were about .25" too small to match up with the original holes so I had to drill one new hole. They are nice rugged speakers, seem to be well built .
Pros: Great mid and treble through tweeter.
Cons: No bass at all. Very muddy when sound is turned up. I even installed an amp and the bass is just awful.