I had purchased one of these subs to fill in some of the lower end that my top cabinets have a hard time producing, just to hopefully get a more fuller sound but I was blown away at what this subwoofer can do at this price point. One of these units was easily able to keep up with two 1000w top cabinets, providing good sounding low end for a fuller sound. The controls could not get much simpler for a subwoofer and is perfect for any beginners. The cabinet is built rather well for a subwoofer at this price point. There is no custom DSP settings built into this sub, although I found that the preset crossover options worked just fine for my applications. Large subwoofers are always a bit of a pain to handle and move around, despite this the built in handles feel sturdy to use. The only point out that I have noticed with the unit is that when you have the unit close to its limit, you do get some unwanted port noise when up close to the subwoofer: From a couple metres away however, it isn't really that noticeable and again, for the price point, you cant really complain that the unit isn't perfect. It may work in some applications better than others but this is the same for most products out there. Overall, I strongly recommend the subwoofer if you would like to add some more low end to a sound system for a brilliant price. Hope this helps any buyers!