Acros are only 8 lugs. There is definately a difference between acro and supraSimilar, but I gather the finish is the main factor.
Anodised finish is very thin and an even 'satin' finish, powdercoat is thicker with a texture to it (orange peel, ripple, whatever you want to call it) while the Supra has a very thin & highly reflective chrome plating.
So if you're comparing a 10 lug anodized acro with a 10 lug blackrolite and a LM402 (with identical heads, wires & tuning) there should be some slight tonality variations between the three.
Comparable year, size, head and tuning will sound different. The powder coating on the Blacro tames & dry's out some of the ring in the Acro. The Blacro definitely has a more controlled sound. To me the Blacro sounds closer to a Supra than a regular Acro. Personally, I think the Blacro's are the best sounding Acrolites. I've got a "last year made" 14x5 Blacro and it sounds pretty amazing.With the same heads and same tuning should they not sound the same?
Not to hijack this thread, but does anyone have info about blacro's manufactured with imperial lugs? Was that a thing for a time, or would it have been a custom mod?
Those were the last of the Chicago drums when they were using up existing parts inventory in preparation for the Monroe NC move. They have little to do with QC issuesLudwig often just put on what they had available. I have a Supra with Acro (Bowtie) lugs, drilled for a B+O badge but with a keystone. Quality control wasn't really Ludwig's "thing"