I know this is an older thread but Rel vs. JL is no longer a complete comparison. You have to hear evaluate Perlisten subs. The D12s can easily go toe-to-toe with either of these and IMO, has a better DSP for integration. The DSP recalculates 1000 times / second to ensure it is optimised. It is incredible technology and I think will be in huge demand once the reviews hit.
REL 12" Carbon vs JL Audio 12" Fathom
I decided to make a new thread on this. Plenty of people love both of these. I am looking for two new 12" high end musical subs for two channel audio. I am familiar with and LOVE the REL Carbon Limited's. The New Carbon Specials are supposed to be even better. But now I am looking at the JL Audio Fathom F112v2's. Because they have EQ that would be great for my boomy basement. I want: 12", super musical and fast for high end audio. I also want EQ. But are the JL's as musical as the REL's? We are truly comparing similar spots in each company's line...12" sealed, $4000 list. Would love to hear from folks who have compared...Happy Holidays! Ken