How does the kimber kable compare with your ref 8?
I can't give you the accurate description as both output is from different port.
One is a balanced cable and the other is a Single Ended. The output power is difference also.
Taking account of those, I will just state the difference.
It actually is a straight wow when I switched to 4.4mm.
Ref 8 compare to Kimber is clear but it takes out the surrounding sound/vibrations. Something like when you twang a guitar, for ref8 it's short and sharp, but when with Kimber it like comes with a longer lingering sound/vibration.
More like in a concert hall for Kimber Kable while Ref 8 is like an open venue with little sound bouncing back from the wall but you have all the clarity and sharpness of the strings.
Kimber Kable sounds warmer than Ref 8 on WM1A
Kimber Kable got more lower ends.