Re: Sub for live sound
I have a pair of Mackie HD 1801 actiive subs. They sound insane but they are huge and weigh110 lbs each (which isn't bad for 1600w). The HD 1501 has excellent ratings and is much smaller and lighter. Any brand will be good just get the best quality you can afford. I advise against 12", they just don't move enough air as the big boys. Lastly, it will spoil you, if you get one, pretty soon you'll want two and then you'll never want play without them.
DW Collectors/Lavender Satin
14x6 Ten and Six Collectors/Natural Satin