[omer]

hmmm, my ears are diffrent than most, and I find the 50's stay on better, and the bendable ear clip is great. I can't wear buds, thay always fall out, so the 50's were a nice change.
Koss has done a great job mating it to the amps in most portables too INHO.

 

[poorimpulsectrl]

What we really should do is just keep forwarding threads like this to Koss's marketing or customer service departments so they start making the damned things again.

Of course they'll probably charge a hundred bucks for them this time around.

 

[omer]

I've tried, it boils down to business and politics. Same reason Senn discontined the 580 and "replaced" it with the 590.
Big business seems to ignore consumer and dealer requests and ideas, even though we're the ones putting food on THEIR table.

 

[Gopher]

asked my dad--he gave me a rather evasive answer... will inquire again in a few days or so