Hi,

I have Koss HV/PRO headphones which I really like. The problem is
that the headphone foam has rotted, and Koss doesn't carry it any more.
They offered to replace the headphones under their lifetime warranty
for their Ur40's. Questions:

1. Is there any place I might find replacement cushions, preferably
closed leatherette? (Koss has nothing that would fit.)
The ear cushion is circular with an outer diameter of about 3.25 inches
and an inner diameter of about 1.5 inches.

2. If I had to make my own ear cushion (leatherette or foam), what
material should I use?

3. Does anyone know the relative quality of the Ur40's? Would they
be better than the HV/Pro's that I have?

Related links:
HV/PRO: Not many specs available on the web, but one guy's has some he
http://www.overclockers.com.au/techs...nheiser_hd570/
(about 2/3 down the page)
Ur40's: http://www.koss.com/koss/kossweb.nsf...ductPrint/UR40

Thanks,
Omar