[jlstorm]

Im just curious, the only thing that the 650 seems to lack from my standpoint is those nice velvet like earpads. They look to be about the same size and I was wondering if I could swap the 650 earpads out for the 750's eventually?

 

[JensL]

Yeah, that shouldn't be a problem.
As far as I remember, all the PROlines use the same pad size and method of mounting.

Those velour pads of the 750 aren't as nice as the Beyerdynamic ones, but not bad at all.

 

[jlstorm]

I get the feeling they are better than the pleather that comes on the PL650's, I will see if the earpads on the 650s get annoying, if not then no reason to spend the money to upgrade, but I would imagine they would get sweatier and more sticky than the 750 earpads after a while.

 

[JensL]

Yup, the pleather pads of the PROline 550 and 650 will get a little sweatier than the velours of the 750, no question about that.
But give'em a go first, maybe you wont need to get the velours.