JL Audio e112 sub vs. JL Audio Fathom 112 v.2

EJR, was the velodyne sub the latest digital drive plus series? I only ask because before deciding on a subwoofer line to bring in and sell as a dealer I looked closely at JL and Velodyne but couldn’t properly compare either, so just took a crap shoot and went with a pair of Velodyne dd10+ to complement the low end of our TAD CR1’s. They work extemely well, but always wondered what the latest JL’s sounded like. Perhaps subs are the hardest to compare, but I believe the common wisdom is 2 (or more) smaller subs is better than 1 larger sub. I think the OP should just purchase a second e112 rather than step up in the line .

BTW my subs volume are set at the lower end of the scale - around 8.  They sounded great via XLR but I have recently started running them from the high level input out of the BHK 300 Amps.  This is the way REL suggests thier setup so you might try the JL from your amps if possible .  

Something is wrong if you have your sub turned "all the way up" at normal listening levels. Either you are using an A/V receiver with separate bass level control (set too low) or you've blown a fuse in the sub and think it is still working (but it isn't). Check it out.

I think I misled everyone:  the volume of the e112 is turned up about 3/4 of the way, rather than all the way up.  (I am fairly certain that the sub is behaving properly because after receiving it from the dealer I sent it back to get it checked out, and it was fine.  My listening room size is 23 feet (length) X 12.5 feet (width) X 8 feet (height). 

If you have efficient mains and a powerful amp that could be what is requiring you to use so much sub volume to keep up. I have 2 e112s in a 25x28" room and I run them at about 30% volume. 

James, I have custom-built Audience Wavemaster D-class monoblocks which are pretty powerful.  Please excuse my ignorance, but what are "mains"?  It would, of course, be less expensive for me to buy a second e112 than a new Fathom 112.v2, so if that would work well that sounds like a grand idea.  Glenn