I know you know everything but not everyone else does so for everyone else:

1) go to http://www.componex.de/english/produkte/

2) go to LF-H

3) go to LFH4

4) behold, it is a 4Khz filter


N8KDV wrote in message ...
Mike Maghakian wrote:

kiwa still sells them. although "rated" at 4Khz, he sells them as what
they areally are, not 4Khz, but good filters at around 6Khz

And I'll ask the question once again: Just where does this 'rating' come
from? He lists them as nominally 6.0 to 6.4 kHZ, and he has a plot of that
filter he

http://www.kiwa.com/sony.html

Show me please just where the 4 kHz ever, ever comes into play?

Can you possibly do that?

Steve
Holland, MI

Drake R7, R8 and R8B