Decent at low volumes
These were a replacement for Pioneer TS-MR 165 speakers which I had installed in my patio island. The 165's rubber gave out after 8 or so years and as I was happy with them I figured the new speakers would be equally great. Wrong. They sound good at half volume but over that distortion sets in. Problem is due to the 30 w maximum rating. You can't add an amp due to this issue as well. I have Polk DB 651 speakers in my boat with an amp and they kick butt for the same price. The 4 Pioneers look nicer installed in the island which was another reason for the initial purchase. Bottom line is they sound good with deep bass as long as you don't crank them.
Pros: Good bass & treble at low to moderate volume
Cons: Can't crank them nor add an amp