Thank you gus for your feedback. After making additinal research I must say that I dont wont to usa that solution with small combo amp.
Now I'm wondering about 2 other solutions with helix stomp:
1) guitar -> helix -> active speaker/monitor
2) guitar -> helix -> amp(with fx loop, send/return, 4 cables) -> guitar cab
Solution nr 1 is more elastic and generally smaller, but I'm afraid about differences beetween active column sound and my teammate classic amp+cab setup. Is that make sens? Do I found big differences here? This speaker will be my setup for practicing and could be my monitor on gigs.
Solution nr 2, here I need to buy additional big amp with fx loop and cab. I understand that speakers will disturb simulations from helix because of their specification. much more stuff but I can like this solution if you tell me that this kind of sound will be much better (better - I mean classic like classic setup amp+cab) than solution 1 with FRFR.
I wondering about that because sound from helix with specific simulation and sound from amp+cabinet without mic are not similiar in real situations like practicing as I understand.
I am more familiar with nr 1. What do yout think?
PS: Helix Stomp bought!!!