[Elecraft] KPA500 audio muffled?

[ke9uw]

I have gotten a few reports of sounding like my audio is muffled as compared
to running the K3 alone. It is true that with several listeners in different
states, there is not a consensus of opinion on that. Some of the guys think
it sounds just fine, and some say they can hear a slight muffled sound with
the KPA turned on. The point of comparing it to K3 only and K3 with KPA500
is that the mic is not in the equation. The report is clearly that the amp
sounds muffled. Not unreadable, just slightly muffled.
I have a bias current of 0.4A...about the only thing I can think of to
check. I think there was some discussion of setting the bias current here,
but I can't find it again. What is the range of bias current for best
linearity? I don't see any help in the manual.

-----
Chuck, KE9UW
--
View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-audio-muffled-tp6996649p6996649.html
Sent from the Elecraft mailing list archive at Nabble.com.