> I have a Heil GM-4/5 "Goldline" desk mic and I have an uneasy > feeling that it doesn't have enough output to adequately drive the K3. > > Is anyone using this mic with a K3 that can confirm my suspicion? There should be plenty of mic gain. I believe WK6I is using a Goldline with his K3. If you need more mic gain, use the 'H' range. 73, Ed - W0YK