Scott has also advice me to remove the sound deading material from the enclosure. However that is not a systematic solution. An upgrade of the amp, psu or some sort of protection needs to be installed. My first experience was with a surge which blew the capacitors of the amp, that was also visible. Second time was what you describe above bass just not there without any prior signal...
Pamps,
Is yours the Summit or Summit X?
Does your amps feel just as warm, or even hot, whether in active or in standby mode? The spot to feel is just above the LED control at the back panel. I am trying to determine if the standby mode circuit on my speakers are defective even though the LED indicators indicate otherwise.