have a sub question

Forget svs & hsu. REL makes the best subs in the business.

"Forget svs & hsu. REL makes the best subs in the business."

I couldn't disagree more. In my experience and direct comparisons with a REL Studio III, its uniqueness is its shortcoming. Many powered subwoofers offer the option of inline high level speaker connection and with commonly used terminations.

Good subwoofer integration shouldn't draw attention to itself. You shouldn't even notice the sub until its turned off.

I can't speak directly to your question, but sealed boxes are generally (tho I can't say "always") tighter (as in more highly damped) than ported boxes. On that basis, you might want to substitute the SB series - rather than the PB - from SVS for your comparison.