I am trying to power a car audio amp indoors using a 120-16v transformer (t113074( www.platt.com/platt-electric-supply...0-16-32/Acme/T-1-13074/Product.aspx?zpid=1324)) connected to a bridge rectifier rated for 40amp and a car audio amp rated at 4.4f. The transformer is putting out 16vac. After the bridge rectifier i am getting around 14.3 vdc. When I hook up the cap or amp (which is 5500w) my voltage jumps to around 20.7 causing my amp not to run and my cap to read high on its digital readout. I have tried using caps on each leg of vdc to ground to filter dc voltage ut i can not get the voltage to stay around 15vdc with the amp or cap hooked up. What am i doing wrong or what else should i ad to the circuit to lower the 20.7vdc to around 15vdc with being able to use 40amps? FYI i already had the transformer sitting around the house and thats why I am trying to use it.