DC does not build burp subs. They build high power daily subs. Used for that purpose they are hard to touch. They just happen to get pretty **** loud when set up right. My biggest issue is the car I'm trying to get loud in. It may be a hatch but it's a round strange shaped hatch with hardly any flat surfaces. About being impressed, I've heard a few Sundown builds that didn't impress me. Does that mean they are not good? I've seen enough blown amps to steer me away from them also. Mostly bad installs.