A quick question, Bill. Long ago they used to make speakers called "sweet 16" which were basicall 16 cheap 4" car speakers mounted on a panel in infinite baffle style. They sounded pretty good. The question is can a speaker designer get high end sound quality from inexpensive drivers with good design and materials?
I only have one sub because I don't have a large LP, my room is almost acoustically perfect, and my sub will reach reference with only 10 watts
Otherwise I'd have at least two.