Subwoofer SVS SB13Ultra vs JL Fathom F110V2

I had dual SB13 Ultra's in a two channel system and sold them for dual JL Audio F110 V2s. My friend has a single SVS 13 Ultra and once he heard the JL Audio F110 V2s he put his SVS 13 Ultra up for sale. I'll send you a PM with my number if you would like to talk about the differences.

Thanks Ricred1, 
That is the kind of feedback I was looking for.  What main speaker are you and your friend using?

I can only get one now and add a second later.

My system: Aerial 7ts, Jeff Rowland(JR) 625 S2 amp, JR Corus preamp, JR Aeris DAC, Bryston BDP-2, JL Audio CR-1 and F110 V2s.

My friend has a surround sound system with Dynaudio Audio Focus speakers(I believe 240s or 260s).

I will tell you the CR-1 makes a significant difference.

Thanks again Ricred1,

Do you mind elaborating on the difference between the sb13s and f110s. Do the F110s seem to go as low as the sb13s?    Budget only allows for 1 of wither right now but either way I plan on experimenting with the crossover built into my NAD C390dd

Thanks again