I bought a boat with a Bose Lifestyle 28 system installed and I want to eliminate the sub woofer and control console due to the space it takes up and the AC current required to drive it and the powered speakers. I connected the Lifestyle speakers directly to my Marine Fusion system and very little sound comes out. Will a 12v DC amplifier from the Fusion work with the Lifestyle speakers ? If so, will there be any quality to the sound without the sub woofer?