i agree you stole those! they appear to be exactly as described! unlikely but they could be a killer recone with JBL parts which still appears to be a steal if it were the case. The aluminum dome is an easy replacement. as long as it's not a huge gash allowing air out it then no need to change them. my k120 has had 2 mic's slam into the dome's. i pulled what i could of the dents out with duct tape. while cosmetically they appear damaged, they still sound perfect with no flaws soundwise. so don't sweat your good fortune, but you should be prepared for the sweat you will produce lugging those bad boys around!LOL
Disclaimer: I make and sell Buffers. I also sometimes Modify, Build and sell preamps and amplifiers. My opinions are not intended to be sales pitches. I am a one man shop and prefer to spend time with my wife and family, i work full time on call and love to spend my spare time doing other things. I only make, modify or build things for those that seek them.