Hey guys I have "inherited", so to speak, a couple of Ashdown cabinets. It should be the entry level series I guess. 1 RM-MAG-115 rated at 250W - 8 ohm 1 RM-MAG-212 rated at 250W - 8 ohm Attached to a MarkBass Nano 300 I can notice 2 things: 1- the volume is not so much, even with both cabinets in parallel using the full 300W at 4 ohm 2- a weird buzzing/distorting sound. This happens less at low volume, of course, and much more at higher outputs. This seems to happen on specific frequencies: a lot on F# in every octave, a little less on G an so on. More in the 212 alone than on the 115 alone. What's happening here? It's a bad amp/cabinet match? Did a blow the cones (it doesn't sound as a blown cone to me, the distortion is different)? I read a thread here about the piezo tweeters of these cab series. Could it be that? Sorry for the poor smartphone video, but it's useful to get the perception of what is happening.