OK with that kind of sum i would go for raw DIY-I would invest 97%of that money to plasma speakers technical researches to extend response down to 80hz , left 0.6% manufacture one prototype, 2% build dedicated house with optimised airflow to prevent any health issues ,then buy and mount in wall 346 scan speak 23w4557 9 inch subwoofers all over the room and feed each with 500w digital modules. with left few bucks i would give to charity organizations, buy older style studio master tape player ond so on.
