The Icon has a strong bottm end, yes for sure. It plays quite flat on all its frequencies. It plays so low, when you compare it to some other woofers. I mean it plays low, but always with accuracy. It is music, not !!! The Xcon is really more powerful, and is strong on the bottom too. It's called a sq woofer, but it has strong spl capacity (not for competition, but for listening). The main difference is in the output for these 2 subs. The xcon has so much output, with 1200 to 1800watts, that you can't focus on the low notes only. Everything comes in your face !!! The Icon seems to be usable for all kind of music lovers. It is very loud, don't believe it's not, at all!!! If you're not a basshead you don't really need an xcon. Maybe others will disagree!!! In my town, caraudio fanatics use to play or demo their system on a parking lot every friday night. They have loud system. But when I play, they're all amazed with the way the Icon goes low and still very clean!!! When my friend plays with his xcon, they all ask him to get out of the car, to turn it down!!!That it's not suitable for human being!!! They have never said that for all their "spl" install with "3000" watts rms. It's just my opinion. Maybe I am wrong, but I hope you can understand my words 1sashanka, as it not very easy to explain in my "English as foreign language" !!!!!!!!!!!