Do you think you need a subwoofer?

@rauliruegas I did not say it was new and I recommend ML subs all the time. KEF does it with the Blade.  Magico does it with their Q subs. 

I am not familiar with HSU, but good for them. You are also right that digital bass management with crossovers, room control and EQ have improved the situation greatly.

I have two Model 4 subwoofers up and running. They measure great with a slowly downward sloping curve from 100 Hz down. They are 3 dB down at 20 Hz. This is without correction, with the crossover deactivated. They do not shake or vibrate at all running a 20 Hz test tone and white noise at 90 dB which is as loud as I can go before things start falling off shelves. 

good.

Got the Genelec 7360As integrated into my system just now. With GLM adjustments they're pretty good for my needs, especially mono stuff where the minor deficiencies in one channel offset the other. I'm sure I could improve it a bit if I adjusted placement a bit, but great for now. Bass presence is massively improved across the board, even with stuff with 'average' bass, e.g. bowed string bass. Glad I stumbled into this thread and thought it over! These things are incredible.

@mke246 Great bass always brings a huge smile to my face, it is the part that makes you want to get up and dance.