Playing around with the X108 I decided to make a few comparisons against a few of my other receivers.
In the comparisons I have used the following:
Yaesu Vertex VX1700 with no extra filters: http://youtu.be/bJ_VN7S1PHM
YouKits TJ5A 4 band 20 watt transceiver: http://youtu.be/AAdPPSfl6co
The TJ5A is about 200hz low from the listed W1AW/KP2 DxSummit frequency and that on the VX1700 and X108, but the TJ5A has very little to no background noise and AGC works well.
Antenna was same antenna for all comparisons a OCF Windom for 80-10 at 30′