John Connors wrote:
Soundhaspriority wrote:
"Eeyore" wrote in message
John Connors wrote:
Eeyore wrote:
The old Koss Pro-4's are very isolating too due to pure design,
especially of the ear cushion. There's a Chinese Company (Oritech ?)
making a copy of the Mk2 version, I saw some when I was there. I asked
for a sample but I never
got one. :-(
They're so good, the BBC even got them to make a genuine 600 ohm
version.
They also reproduce bass like no other headphone. Turn it up too high
and it'll blow the cans off your ears ! Heavy to wear though and tight on
the
ears, so extended use may be uncomfortable. I think Radio Shack may sell
them.
Graham
INTENTIONALLY cross-posted to rec.audio.pro.
PA can STFU.
Yea but the Koss Pro's are like wearing rocks on your ears.
Uncomfortable is an understatement 
I appreciate that but they're tolerable for an hour or so. PLUS they do
*exactly* what the OP wants.
I'm tempted to get a new pair (my old ones are nearly 40 yrs old and
falling apart)
actually even though I rate my Beyer DT331s for casual use (open back).
http://www.koss.com/koss/kossweb.nsf...%5Efs%5EPRO4AA
Graham
Location Audio makes a set that are obviously patterned off the Pro 4AA's,
but with even thicker gel filled cups, using 7506 drivers. They are a
favorite among the ramps crowd for such occasions as carrier flight decks.
I have a pair, and as far as I can recall, they are more comfortable than
the okd Koss Pros, quite tolerable. They do have one very irritating
characteristic. Due to the very robust all metal cup pivots, they tend to
catch hair and pull it out by the roots 
The Pro4s will do that too.
I have the 4AA or possibly the 4AAA (did they make that one?)
They did. In fact I remember now. Mine started off as 4As, blew the drivers ! Got
upgraded (for free) to AA drivers and finally to AAAs. In fact if I spent a
little time on them replacing the flexible cord and the screw mountings for the
drivers, they could be properly usable again.
anyway, I think the ones I have are gel filed ear pads.
Which *always* seem to 'seep away' somehow and need replacement every 5 or so
years. No different with the Beyers actually ! The foam goes on those. Probably
only a year left on the current ones which were my first replacement set. Beyer
UK sell them directly though.
They are original Koss circa 1977 or so but not the first model, they are
either the second or third generation.
I'd guess 4AAs. Might just be AAAs by then.
I'd check on it only a friend borrowed them for a gig.
Personally they are industrial strength, but heavy and like I said before
they feel like rocks on my ears.
I think it depends upon how big one's ears are as to how much they hurt
smile!
They do sound great though!
They sound astonishing.
Graham