[Aetherhole]

For clarification, Sealed vs Port has kind of been nullified, especially when it comes to subs like the Ultra 13. The Ultra 13 being a ported sub performs as good/if not better than MANY sealed subs.

Anyway, you do have a trial period if you test out the Plus/2 for yourself! Clean output is absolutely what the Ultra/Fathom and even the Plus drivers are about.

I am never really impressed by "Demos" or "Demo rooms" that I go into. They are never really good to judge how the speaker/sub sounds. The best bet is to take one home and demo/compare it there.

I agree that the calibration of the F113 is what made you less than impressed, but I also think that calibrating it to YOUR preference is key, especially since you don't consider a flat response, ideal for your situation.