I knew that I wanted to purchase some subs to take the pressure away from my EON615s, yes they handle bass well but I wanted to remove the bassline so that they would handle the more mid to high frequencies. I had been researching subs for a while and kind of new what I wanted and the price range. I needed something that was reliable, well built, sounded good and looked good. Enter stage left the EV ELX200-18SP, wow wow wow and one more wow. This sub has transformed my setup completely, having the bass solely handled by these subs has raised the sound quality to the next level, actually about 10 levels up! Controlling how much bass the subs will push out is easy by using the controls and small screen on the back, there are several presets and a 3 band EQ to play with , I have already had to wind them back at some gigs due to pushing out too much bass, this is something I will need to learn more in getting that optimum bass sound right for each of the event acoustics. I haven't played with the QuickSmart Mobile wireless control and monitoring application but planning to install this app on my IPad soon so looking forward for that optimum control of these bad boys. These subs aren't light but I can handle one on my own, i have recently purchased a collapsible sack truck to help with logistics. These units are well made solid units, love the detailing even on the handles, I also had to purchase some new poles with M20 threaded ends as I was using speaker tripods before. DJKit were awesome as usual with delivery and when one of the units arrived damaged, it was quickly resolved by DJKit, so guys thank you, and 10/10 for that. As you probably gathered I now have 2 of these subs and my rig just sounds and looks very professional now. Here is a review from a gig that I did with them last weekend: "Incredible service. Very professional. The sound and music provided was outstanding. Would definitely recommend to anyone " So if you are looking for an active sub, look no further than the ELX200-18SP.