Hello all, I recently acquired a VS8080 that had a terrible hissing problem. It basically sounded like rainfall through out all of the channels. If I plug a source in, i have no change. If I go through the FX Return it is significantly better. I then proceeded to test the voltages on the first OP Amp. (TL072cp) I found that pins 1-3 gave voltages all over the place between 2 and 16 VDC, and that pins 4 and 8 read 15 VDC, and pins 5-7 were again all over from .2 - 16 VDC. I then proceeded to replace the IC1 op amp. This now has made the problem worse, and now i have almost a pure tone going through the amp when nothing is plugged in. I installed a socket on the first IC so i could swap and test easier, and i get the same voltages when the OP AMP is not in the socket. Now it gets interesting as pins 1-3 should be near 0 VDC, 4 and 8 should be 15 VDC, and pins 5-7 should be close to 0 as possible. Has anyone had this issue, or seen something lie this? Thank you all.