I just swapped out my old coaxials in the front for a set of RF T2652-S components and sold my old amp and got a MB Quart 4x80... After a long brutal installation (had to run wires through door boots and everything) my tweeter is hissing bad when I turn the gains up to the rated voltage level with a dmm. It really doesn't sound good at all and it's pretty confusing/frustrating after doing all this work.
Why might this be happening? What are the most common culprits in these scenarios? Very confused/concerned/annoyed.