Now I like my bass but as it's all about quality, not quantity so I've never had a problem before. However, since the introduction of Blu-Ray to my system I've ran into a problem I've not had before. After a while my sub stops doing it's thing and needs to be left alone for a good while before it comes back to life. It's not particularly hot when it lets go but I can't really think of any other reason for it to just stop and it works just fine once it cools down again. I don't think I'm driving it partucularly hard (-20 on the amp, 9 o'clock on the subs gain and ~85Hz cutoff on sub). I've had the amp out of the sub for a look-see but I'm not really sure what to look for, nothing is loose or disconnected. I'm thinking of drilling a few holes in choice spots to create an airflow over the amp. Obviously this will change the Log from a sealed box to ported but running out of ideas to cure it. Been in touch with Ruark about a replacement amp but no replies yet. Anyone else had this problem? How did you cure it? For any DIYer's out there am I likely to cause further problems boring holes in the box?