SVS's best sub is the PB13 Ultra and that wasn't engineered by anyone at PSA. As for their engineering skills, they couldn't manage to get a sub with two supposedly high-excursion 15"s, more amplifier power, and more enclosure space to match Rythmik's FV15HP. How did that get screwed up? I doubt the V15 is anything to get excited about.
What you refer to as SVS's "best sub" cost $2000, has more enclosure space, more amplifier power, but still doesn't match Rythmik's $1200 FV15HP. How did they screw that up?
Unlike you and PSA, I don't mean to bash SVS, I am making a point that you can cherry-pick subs to compare and say whatever you want.
Regarding the dual 15" PSA sub you are talking about, Josh Ricci gave the following conclusion:
The CEA-2010 short term burst results for the XV-30Fse indicate a powerful system as expected. Down in the 10-12.5Hz bands it would not produce a result with acceptable distortion or much output to speak of which is as expected as this is way below the tuning of the port. At 16Hz a passing result of 101.5dB was produced which is respectable. At 20Hz the XV-30Fse is finally in its wheelhouse and bangs out a powerful 109.4dB at 20Hz. By the 40Hz band the output capability has risen to 116dB and from 50-125Hz the XV-30Fse is capable of 120dB levels which is quite powerful indeed. This overall CEA-2010 performance puts the XV-30Fse in the company of the most powerful commercial systems that have been tested to date.
That seems an impressive statement for a $1500 subwoofer
To address the engineering competence of PSA's Tom V., lets look to Ricci:
The XS-15SE offers a lot of bang for the dollar. The driver is a high quality piece in this price range and the enclosure and finish is heavy duty. The engineering and DSP settings also seem to be well applied and thought out. It is one of the few, sealed design, powered subwoofers offered for under $1000 that is both engineered well and has enough headroom for a decent sized room. Based on the measurements and performance metrics alone it compares quite well to other commercial sealed subwoofers at 2x to 3x the price.
I don't know what the bad blood is between you and PSA that prompts you to bash them on an on-going basis. I have not seen any business practices to warrant your rancor: They actually manufacture their subs in USA, one of the owners, Tom V. is very likely who you talk to when you call (or use the website chat service) and provides expert advice, their policies (the topic of the OP) are great - with free shipping, 30 day trial with free return shipping, etc.
Personally, I am glad they are in the game.
The dual PSA XS15se's I bought for $1350/pr match my $2300/pr dual Rythmik E15HP's for music (which is what I bought them for). The E15HP does dig deeper, but I don't want to pay for LFE which I will never appreciate in my bedroom system! The PSA does fine for HT but has the limits you would expect from a well designed sealed sub at it's price. The servo of the Rythmik seems to allow it an inordinate amount of extension for a sealed system!