My husband and I have a 3 car garage (mancave). We recently purchased a hot tub and now can't hear the TV while we relax in it. We purchased a 200W sound bar but it doesn't get any louder than the speaker built into the TV. What kind of speaker or sound system do we need? The TV is about 15 feet from the hot tub. We would prefer something wireless and with Bluetooth. I have tried to google information but the more I read about Watts, dBs, OHMs, IEC, the more confused and frustrated I get. I have no idea what any of that means. HELP!!!!