I am really interested in these and may pull the trigger on a rather pricey 2x12.. $1299 but loaded with these speakers. I have a 68 drri and a mesa mark iii red stripe which I will run through, but probably in the next year I will get a fuchs ods or clean machine. My understanding of speakers and wattages is very little, I heard from a joe bonamassa gear video that running a 100w head through a 2x12 may push the speakers too hard? Is that true? Fuchs customer service said as long as you don't run your amp at full distortion full volume (which most smart people don't) you would be fine. From what I have read on here though you want your speakers to be about 1 and a half times the power rating of the amp. The purple haze speakers are 40w, but I don't know having 2 of them and the ohms play into things. I still don't know whether my mesa is 75w or 100w.. it's a long chassis red stripe with a half power or 15w switch.