Dball

I have a caldera Tarino hot tub. It is a 115 or a 230v model. When I received it from the dealer it had the 115 cord hooked up to it and I wanted it hooked up to 230v. How do I know that it is set up fully for 230v 50a and able to run the heater on high jet and not only on low. I also got it with speakers that are not hooked up does anyone know what I have to do to to make those work. I was told by the dealer I could by a Bluetooth adapter for it but I haven't found one that looks like it will work. And can I use the USB port located inside