Hi, I'm on the ampeg website, and reading about the 810-E, I see that the frequency range, is very very limited. It stop the low at 58Hz and the hig frequency at 5Khz. II Can't belive that the "best" ampeg speaker is only a scenic obyect, cause million of people use ampeg 810, and say it sound amazyng...the frequency is an error on the ampeg website? is it not real? Can anybody explain to me? Thank you!