Warning: Spoiler! (Click to show)
Bass: GR07 BE digs deeper, hits harder, and sounds more textured.
Vocals: KC06 sounds more spacious, cleaner, smoother.
Treble: KC06 is brighter, carries more air, and once again sounds smoother.
The KC06 cable is less supple, less smooth, and more springy then the BE's cable. Cable thickness before Y-split is the same, after Y-split KC06 is thiner. Y-split on KC06 is hilariously unpleasant. KC06 doesn't have a chin slider but you can twist the housing before insertion to help the cable "stick" to your ears. Jack on GR07 BE is heftier and better built.
The KC06 housing feels quite sturdy(much thanks to its material) and is very comfy(much thanks to its size). I would say these are MOAR bed friendly then the GR07 BE.
These little guys sound quite(quite) nice I must say. The first thing I thought when I tried them was clarity. They outdo my GR07 BE in spaciousness and mids-highs refinement but their reach is not limitless. I don't think they match up the the vocal spaciousness/realism of the the EX1000 for example but what does? Because of this and my impression of their lows, I wouldn't have trouble choosing for phone number one here, GR07 BE come out on top.
Unlike the EX1000, which has superb(superb!) vocals, the KC06 doesn't have something to make me seriously think about lowering my minimum bass floor. That said, I find these a fantastic value for a mere 36 quid 👍
I used a iPhone 4. Orange tips on the GR07, ASG 2 double flange on the KC06.
Good stuff my friend! I typically use the bass boost on my amps, and that usually gets enough bass happening with my iems to satisfy, so I am hopeful that will be the case with the KC06's as well.
Would be cool!