Shouldn't This Sound Boomy?

The dip around 2.4kHz is a common feature among several speakers and a known tweak. It gives an enhanced sense of imaging. You can find it in several previous generation Wilsons, among others.

It is also a good crossover point between the tweeter and midrange, so it's relatively easy to make this dip happen in the crossover by spreading out the filter points a little more than you would use for a completely neutral speaker.

I doubt that’s from the room.

Personally I’m with Floyd Toole that EQ should be used sparingly and mostly in  the bass, otherwise what is the point of picking out speakers you like the sound of?

@hilde45

Please check the dB scale. A reminder that 10 dB = 10x more power in the room. Compared to the other frequencies, that’s a lot. If he clips that it’s then he is only 1 filter away from dialed in.

By smooth I mean that your bass decays more or less evenly.  You don't have some bass notes finish quickly and some late. 

Looking again at the overall response you really need an EQ or Roon.  Clip that 45Hz peak.  Use one shelving filter to flatten from 20 to 60 and another to boost everything below 100 Hz to about 4 dB above the rest. 

You need to decrease the vertical scale, so of course it looks flat. 🤣

So if I ignore that and look up at the waterfall plot, you have a peak around 40-50Hz I’d try to clip with an EQ and possibly raise everything below 100 up 4 dB or so because the system is looking too flat to be fun. :)  See the discussions around the Harman curves.

The duration of the bass nodes is long, but it’s also rather smooth. Besides that 40-50Hz peak you don’t have any outstanding nodes. An EQ would clean that up immediately.