>>and the leds increase in range

I didn't have time to look up your amplifier model on the internet, but are you saying that the LEDs which indicate output power/signal level are flashing higher as if more sound was coming out ?

If so, that has to be a helpful piece of info...

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8