"my first thought was to try Kimber Hero with a separate ground wire"
I have Hero on my JMW 9 Sig going to a GCPH after trying many in that price range and lower. Hero seems neutral. Do not have a ground wire and am getting slight hum if you listen at the speaker. The VPI cable seems to decrease the highs a bit, but is warm. Hero strikes a balance. Also, both seem to be well made with the Hero have a bit of an edge.
Good Luck,
Robert
PS: Have Hero XLR's going from the GCPH to my NAD M3.
I have Hero on my JMW 9 Sig going to a GCPH after trying many in that price range and lower. Hero seems neutral. Do not have a ground wire and am getting slight hum if you listen at the speaker. The VPI cable seems to decrease the highs a bit, but is warm. Hero strikes a balance. Also, both seem to be well made with the Hero have a bit of an edge.
Good Luck,
Robert
PS: Have Hero XLR's going from the GCPH to my NAD M3.