I just received my newest purchase, a used AL-80B in excellent condition. First time ever messing with an amp. Turning it on and following the first few tuning steps, I notice that the meter is showing about 2700V to 2750V instead of 3100V that the manual says that I should be doing. I'm assuming (reasonably confident but have not verified) that the jumper is at the factory default of 125V and I measured my line voltage around 117.5V. I'm wondering if the 2700V is an issue, and whether I should move to the 115V tap.