1961 1s – real world in room frequency response…

Hi, Arendal Community.

I personally have two 1961 1s’s.

I’m wondering if any of you would be willing to share your in room frequency response charts for 1961 1s subwoofers…

As I understand it: Sealed subs generally benefit the most from room gain [which ideally would add performance to the anechoic expected results, assuming no room mode issues, and well placed].

I am curious: With well positioned subs, what sort of ‘real world’ gain is kinda par for the course? [+4db, +8db, +12db???]

Also, curious: How 2 1961 1s’s stack up in the real world…
As I understand it, generally, sealed subs kinda sum to a greater output than a single sub.
How much though [in reality]?… +2db, +4db, +6db???

I understand no 2 rooms will behave the same. I am just curious to see frequency response charts from real rooms, from people with the same gear as me, to see if I have room for improvement/ optimization, and to find out:
A] What kinda room gain is ‘normal’.
B] How do multiple subs sum, in a real room.

Thanks for your time guys – well appreciated.

– Sam