How handy are you. Maybe build one of your own. I got a kit from creative sound solutions and made my own cabinet. I got a real sense of satisfaction building my own sub and ended up with some serious bass. It uses tuneable passive radiators,though i set it up according to instructions for a 27hz output. Make it any shape you want as long as you adhere to the internal volume specified.Check it out creative

DOG is GOD spelled backwards.
What others think of me is none of my business.
M80 V3 MY GLOSS Cherry