My brother just built the Bully kits and they really arent very good to my ears. Decent bombast, but not particularly good in most other areas. I do not like the servo powered woofer sound. Even at the kit price not a very good bargain. Fairly easy to drive however. They had about 50 to 60 hours on them so perhaps a bit more time will help. Cant judge the other speakers in his line.
Jay's Audio Lab Visits GR Research's Listening Room
I have been saying this a while....If you can DIY a kit, have a tall ceiling and only have 5000 dollars, you could end up with some top tier sound with the GR NX-treme model.
Listening Session At GR Research
https://www.youtube.com/watch?v=PadaHLYgECs
I believe another youtuber/BACCH dealer, Audiophile Junkie, uses the NX-treme as his daily driver still. I am fairly certain he can afford some very expensive speakers, but, he just seems to be hanging on to the GR tall tower..
You never know, i suppose....Some of you may not end up liking the sound of some expensive item, you may very well prefer the sound of something cheaper, even if you can afford very expensive things.