Congrats on the new purchase. Always fun to relive that initial feeling through new owner postings smile

I can remember someone posting that the SPL App for the iPhone was within a few db of his SPL meter, good enough to get them all playing at the same level, which is all you are looking for.

M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70