[Elecraft] K2 hollow sound and low power output

[Rick Wheeler]

I have a K2 No. 2005 (owned and built since new) with the outboard ATU/100 watt setup. I rearranged my shack and have been fighting RFI. I believe it had to do with the routing of the power cables. I think (hope that is!) have fixed it. A bad Anderson connector (internally loose) on the 100 watt side may have contributed to the problem. BUT...

Strange things did (I assumed were RFI caused) happen such as the radio keying up itself and when I attempted to tune the radio using the tune button it frequently would try to tune using high power (well over 20 watts). 

A couple of things have now happened. Power output is drastically reduced (10 maybe 20 watts) with a long hello or whistle AND the K2 now has a distinctively hollow sound (same with headphones too). The background noise on an empty frequency sounds as if it is coming from the end of a 10 foot tube. SSB reception is somewhat distorted too. 

I tried a factory reset (4,5,6 and power on) with no result.

Regards,

Rick
K4LX