There's some sort of consensus that speakers sound better after they are run in for at least a few hours. But I was wondering if it's possible for the drivers to become "stiffer" again over time. I've started noticing this effect, where my Kit281s will sound fine at low 'usual' volumes (all the time). But when I start to push it once in awhile, there's a weird distortion, sort of like harshness... it's just less clear and generally unpleasant. Sounds like speaker distortion to me. I think, wait a second, aren't these supposed to go to 105db? I'll leave the room for maybe 10 minutes, and when I get back, the sound is better, the distortion is for the most part gone and it sounds a lot more like it does at lower volume. (With the exception of being even more awesome, that is. ) A possible explanation is that my speakers, darned AV8 woofers especially, are degraded in some way over time when they're not played loudly. I thought of this because I recalled some measurements (see http://www.audioasylum.com/audio/spe...es/137278.html) of some woofers that exhibited large changes in T/S parameters from a "new" state to being broken in. Perhaps those revert a little bit towards the original parameters when the driver is not used. Those changes could go away after a shorter period of heavy use relative to the initial break-in. Does anyone know if this is reasonable, or just total bullhockey?