Setting Sub Crossover Freq

This is an excellent way to go unless one has a high-quality full-function outboard crossover to perform high-pass hand-off to main speakers. Mediocre electronics of high-pass crossovers typically found inside sub cabinet are likely to degrade sound and cause more problems than are solved. You might first try the low 40hz point with a sharp 24db/octave roll-off. After you have experienced how clean things sound up into the mid-bass and mid-range, experiment with more gradual roll-off and higher crossover points for comparison. I bet you will find roll-off at higher frequencies is muddy.

Thank you !!

As far as polarity goes it's 0 or 180 according to the room. Have someone switch the polarity while you listen to a song with constant bass and choose the polarity based on which one has the most sound pressure. The loudest pressure is the correct phase.

I have set it to about 50-55 on the low end, althoug it's tought to tell with the rotary dial and now the volume is at about 2 o'clock. Seems to been pretty decent. i get some nice low end extention, where the speaks drop off.

Worth nothing, the speakers are ACOUSTIC SUSPENSION (no ports)

My brother (not on a'gon) opined:

"Who knew the level of dorkdom in the world? U do need to turn the power up with lower frequency settings. Reason being, wider, slower waves need more watts to reach the same amplitude of percieved loudness. 80 hz is a little muddy to my ears for a sub. I'd try around 65 hz. Keep in mind that the frequencies are actually notes, so you may want to tweak it based on what key the music you are listening to is in. To figure out notes, keep in mind 110 is an "a" and use pythagorean fractions to tune down to the key you are in. 55 is also "a" ...."