I won a pair of L150A cabinets w/crossovers on eBay. I have 044, 044ti, le5-2, le5-5, le5-9, 104h-2, 122A, 123A, 2213, loose drivers. I don't have the passive radiators. Is it possible to install a pair of functional woofers where the passive radiators should go? Can they be wired so that both woofers in each cabinet would work, or is the passive radiator mandatory? Thank you for your assistance.