SVS vs REL and experiences with both: your comments and preferences...

I’ve had 2 SVS woofers, one dead right out of the box. SVS customer service was great, but woofer number two had a dead amp. Complete garbage IMO. Bad luck, sure... but, come on man! My S510 is great. No complaints, yet.

I currently use 2 RELs from the "Q" era, a Q108MKII and a Q150e, and both work perfectly in my main hifi rig...can't recommend them more highly, and they cost 200 bucks each (pre-owned) at different times around 5 or so years ago...had the 150e first and loved it, so when I found a clean 108 (a friend has 2 of these) I added it...great move as they sound excellent together. 

I have not owned any current Rel but I do have 2 x SVS Ultra SB. My buddy had the Rel G1's and after hearing my two SVS subs, he just sold his 6 x G1 subwoofers. I'm not a big subwoofer guy and I don't utilize them to their maximum but instead only look for that last octave. However I do like articulated bass and I find after owning many different subwoofers that the SVS Ultra SB does everything correctly and nothing wrong. Highly recommend!

I have two RELT9i integrated perfectly with Harbeth speakers.  They sound right with music, plenty of deep bass and punch when the music calls for it- never overbearing or blocking any midrange detail.  No slow or lagging beats- they keep right up with the mains. 
These are the first subwoofers to accomplish this out of others I have tried. 
I have no interest in any other subwoofers.   

worldwidewholesales,

There are no absolutes in Audio, only preferences. The truth is I hate to post on Audiogon, because far too many threads turn into silly arguments. You are a dealer for SVS and admit that you have not heard any current REL, but you imply that they lack articulate bass. The bottom line is you have a financial incentive as a dealer and I don't. I've owned both... SVS SB15 & 16 Ultras, REL Carbon Limited's and I currently use REL G1 MKII subwoofers. In addition, I've owned HSU, Martin Logan, and JL Audio subwoofers. It's just my opinion, but if I wanted a subwoofer for HT only, I would select SVS over every subwoofer I've owned due to price versus performance. If price wasn't a consideration and it was for HT only, I would purchase JL Audio. For 2-channel only I prefer my REL G1 MKII over every subwoofer I've ever owned. It isn't just about bass, but no other subwoofer has improved everything across the audio spectrum like REL. There's more detail, air, and spacing between instruments when my subwoofers are engaged. There isn't a night and day difference, but easily discernable. What's fascinating to me is I can't tell my subwoofers are on until I turn them off.