I have an elemental designs eD-300 subwoofer box. I've had it for about 6 to 7 years. When sounds starts to play, it sounds muddy and whufly. Really odd and very off. After a quick short while, the plate amp will go to standby, and won't wake up, like it's in protection mode. So, I dont know if it's an issue with the sub driver making the amp do this or if the anp is on its way out.
With our the amp hooked to the sub, it turns on and goes to standby as normal.
Thanks everyone.
Aaron