The LEDs may not have had time to react to the peak. The amp's protection circuit could have cut the amp out before the LEDs had time to illuminate. The LFE cutout does not surprise me. It takes more instantaneous power to produce a lower frequency tone than a higher frequency tone due to the longer wavelength of the low frequency tone. There could be many reasons for the trip. It could be that the amp's RMS rating is good, but it's dynamic power (as limited by the protection circuit) can't cut it.

LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7