i bought a truck a couple months ago and it had a bazooka powered tube and was hooked up to a crossfire (i believe) 70x2 amp. the crossfire amp and the amp in the tube put out too much power for the bazooka sub so i bought a new 8" sub for it. now the amp in the tube doesn't work and and the crossfire cuts out when i get to the point where it starts to sound good. the new sub is a 300w max clarion. i don't have much dough to work with so what would be a good budget amp for this application? any help would be much appreciated.