Subwoofer insight.

rwwear,
"The REL's just aren't real subs IMO. They don't even go down to 20hz. I have a friend with a pair of the REL Carbons. Even he acknowledges they don't perform like mine. I personally own Velodyne DD15s and I love them but would go for the SVS 16's if I needed a replacement. But you are right about personal preference Ric."
Have you ever heard SVS 16's or a REL in your system? 
We have different opinions about what's a real sub. I've owned SVS,  HSU, Martin Logan, JL Audio, and now REL. REL subwoofers don't thump like some subwoofers. In my system they provide different shades of bass and improve sound across the entire audio spectrum. In my opinion REL subs are very special with 2-channel, but they aren't the kind of subs that standout.   

The SVS subs are half the price of the RELs. And that's just one example.

No. I haven't heard them in my system but I've heard them in systems I'm well aware of. Setup is the key to making a sub work without thumping. The REL subs are decent but overpriced for less in many educated opinions.

I think after 30 years of experience and actually owning several subwoofers qualifies me as educated. Again, there are no absolutes in Audio, only preferences. So, I’ll continue to provide my opinion based on actual listening, but I won’t try to insult anyone that disagrees with me.

Okay. I have 30 years in the business of selling and installing systems and tuning them for many satisfied customers. I never intended to insult you Ric. I'm sure your system sounds good. I just know the RELs are twice the money of the SVS subs while getting less. If a sub can produce high quality bass below 20hz it has a much better chance of producing high quality 40hz bass.