What metrics exactly? I would love to know what to look for.
Lol
oh stop with the jokes James, you don't need to look for anything. You are one of the god fathers when it comes to measurements.
TBH, I wish I could have taken some...
We put the subs all in the same spot, ( one at a time) gain was at noon, phase zero, room correction was off.
Mono & FV15HP was set to their lowest port tune and the attenuator ( room size) was set to max on the TV15.
The FV15HP and TV1512 would make stuff rattle on the other side of my house, where that didn't happen with the PB4000 & Mono15.
We could feel more chest slam with the FV15HP & TV1512 over the PB4000 & mono15
I know its not a accurate test at all. Especially not compared to what you can do James.
In the end, it was my personal experience with a couple in home demos.
Does this mean the PB4000 and mono15 are bad subs? No way, SVS and monolith make excellent products.