Thanks. Helpful. At Grimm’s price that frequency range simply doesn’t cut it for most people. Genelecs are a class of their own
Yes, tonality wise they are in a class of their own. But tonality isn't everything.
The biggest difference between the two would be the way the speakers sprays sound out in the room and likely the SPL they can provide before the distortion assumes primary role of audible concern.
The Grimm aims for constant directivity from about the lower mids and up while the Genelec is a gradually increasing DI speaker.
I like constant directivity designs as a concept and I really like speakers with distortion-free high dynamic range. The Grimm LS1 BE also has a tweeter that's likely far beyond any normal transducer due to the fast decay of stored energy inherent with super-light and super-stiff materials, so I'd not be surprised if someone told me there was a clarity and realism to the highs with Grimm that defies what simple frequency response can tell us.
Since speaker design is all about compromises you can't get things like perfect tonality, perfect off-axis, perfect distortion, perfect time-domain behavior and huge capacity at the same time. You have to pick and choose what you want.
For me the Grimm looks like a good and balanced mix of everything important in a normal home-environment while the Genelecs are super-focused for their intended use.
I don't see them as competitors and I'm quite convinced most people would lean towards the Grimms in a real-world living-room of a decent size, but I could be biased since the Grimms are hands-down on my top 5 list of best ever audio experiences - and that wasn't the BE version.