I arrived here researching Polk something-or-other a couple weeks ago. Then I read subwoofer threads to about 16 months back. It's all your fault, hah.
For reference, I have a pair of Newforms running up front, looks like 2x7" [not 5.5"!] per cabinet + 3-segment ribbon tweeters, actively bi-amped. Looking for a single sub (keeping it simple / weight limitation).
So both subs are just over 100 lbs with roughly similar dimensions, and a $100 delta. My usage is casual, and either would be overkill. Having said that, are there any key differences between these two subs beyond down vs front firing? How would the long excursion 13" stack up against the 18"? There is so little info to go on, or I don't know how to interpret what I've searched up. Outlaw appears to be an interesting unique design, and the PSA appears to be 18" overkill. You can see my criteria is haphazard and trivial. ("What can I wedge in here that will be enjoyable for several years?") However, if the 13" sounds better / digs with lower response, but isn't as loud, that may be my preference. Or will the 18" simply obliterate 13" no matter which way it's sliced?
I didn't see any Rythmik / SVS / JTR / Mono / RSL products that caught my interest after reading in detail about each. Not sure about HSU, maybe the 15" VTF-3 MK5 HP with one port blocked.
Which one "digs", even if not necessarily the loudest?