Ping, incorrect voltage, either high or low is hard on poor quality transformers. 116v hardly qualifies as low. 130v borders too high. Push the tech harder. I hope you are under warranty.
Input voltage and your poweramp
I have a pair of solid state mono block amps that's make excessive noise from their chassis. It's a loud buzz that develops to a rattle at times. Their tech is saying the problem is caused by the voltage level from, which fluctuates down to 116V. The utility company is telling me that the voltage is normal. For those here in the US, can you measure the voltage level at your socket? Thx.