I use this sub with my live band (usually 4-8 piece band) and it sound great. I've set t to pick up from 100Hz and this sub doesn't disappoint.
This sub is great, not too big and can easily fit in a car with the rest of the gear. I'm very pleased with the sound quality and clarity of it. Just make sure that it's far enough from any bass drum mic as it will start creating feedback and it's not something you'd want on a live gig.
As most Subs this bad boy isn't light, although it can be carried by one person, it's much easier being handled by two.
If you're looking for your first Sub for live bands or DJs, this might be the one.