Curiousjim if I remember the kef cube does make the 107 sound better, my friend said it has a room correction ability. My experience the 107 they sound better with it, The have a better and wider soundstage.This is my audio mentor system.So I did grew up listening with the 107.
KEF Reference 1 v 107/2
I replaced KEF Reference 107/2s with Reference 1s because I was concerned about inserting the active unbalanced KUBE between an Ayre KX-5 Twenty preamp and VX-5 Twenty amp. I had had a bad experience adding an active balanced Bryston high-pass filter between the preamp and amp, and was warned by Charles Hanson to avoid inserting active circuits between the two. I regret I never tried the 107/2s with the Ayre gear. A balanced passive Marchand high-pass filter does no harm.