I just took the back panel of my Neo 210 the old wedge cab and found 2 12volt 15watt interior car lamps in slots (like fuses) both were blown. Does anyone know why GK use these lamps is it for current limiting for the crossover? I was getting a weird sort of high pitched rustling or like static in the woofers when I played a note and realised my horn was not working - I hope replacing the lamps will solve the problem. The woofers are still OK not blown. Any comments or experience with this? I wrote to GK but nothing back yet.