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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 http://www.downbeat.com/newsletter/art/201208_TS_02.gif, while the 'non perception' do http://cdn.head-fi.org/2/2d/300x300px-LS-2d08ba67_B001GF7WRW-41KY2Bcel-HL.jpg)

 

Is there any actual difference between the two?

 

Thanks a lot guys!