Monitor requirement is monitor dependent and your taste for bass. If you want a cheap high quality sub, get the James EMB1000, usually for 5-700.00 on the gon. They are small, easy to adjust, and are very fast. Sorry to hear about the divorce, been there, done that, always expensive, but 3 years later, in a good place, vinyl spinning, cd's spinning and there is music in the house and a Brazilian to dance for me hehehehe....jallen