[schmalgausen]

Hi all,

Watching "Vinyl" series of course I saw many of these cans. I read once that some of vintage models were republished but didn't mind.

Now I started searching the info about the new editions and found only that the model was started in early 70s, then next bunch in late 80s and last bunch in 2010s. What I can't find is the difference between the versions. Some people say that they are all the same, others say that it can't be true.

Any opinions?

 

[schmalgausen]

Hello? 

 

[Wayde]

If you're still interested, I'm about to find out the difference. 
 
I have a pair of Koss Pro 4/A from the early 70s, I think they're from 70 or 71, original brochures and everything advertising the complete Koss line. I'm working out getting one of the newer ones to use as parts for the old. 

 

[schmalgausen]

Thank you. Howerver I already bought a brand new Pro\4AA. The sound character is definitely vintage.