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Hi everyone!


Just a quick quesiton: I've been looking at the AKG perception line ( K44 K77 K99) on ebay, and I noticed that a lot of those headphones are just, say, "K99", and not "K99 Perception" .


There are also some other aesthetic differences between these two 'versions': for example the 'perception' ones don't have the AKG logo on the earpad, while the 'non perception' do


Is there any actual difference between the two?


Thanks a lot guys!