This may not help but I have heard 30.1 and SHL5+ in two different rooms. They both are quite different. SHL5+ has more range and you can hear it especially at the lower end of the spectrum. Everything sounds a bit larger with SHL5+, more towards neutral than 30.1, to me at-least.
Of-course if you have listened to smaller speakers mostly then you will tend to like 30.1/30.2(I am guessing) like me.
I decided not to go with Harbeth speakers since they are just not neutral to the source or don't even try to be. They have a voice of their own. If you like that then you can't go wrong with the line up. Just go higher, you will definitely get more.
Of-course if you have listened to smaller speakers mostly then you will tend to like 30.1/30.2(I am guessing) like me.
I decided not to go with Harbeth speakers since they are just not neutral to the source or don't even try to be. They have a voice of their own. If you like that then you can't go wrong with the line up. Just go higher, you will definitely get more.