As long as it still sounds OK you should not have damaged anything especially if your amp didn't clip. Remember you can only push a 6 1/2" driver so far. Honestly I've bottomed out my C1 sig a couple of times with very dynamic music and they still sound fine.
Dynaudio Focus 140
I have a set of Dynaudio Focus 140s. Powered by a Parasound HCA 2200II. One night I was a little lubed up and may have been pushing them a bit hard. At one point the woofers bottomed out. Took me a second to identify what was happening. I then quickly lowered the spl. I continued to listen for a while and they sounded ok. Since then they have continued to sound ok but I haven't pounded on them since then. I was just curious If it was possible that I may have hurt them in any way? Or if the woffer bottoming out was common? Like I said they seem to sound ok at reasonable spls. Thanks, Bakes