[Jon Liu]

Nice! This is ONLY the beginning! This hobby NEVER ends

 

[Jon Liu]

The cut off frequency either high or low is essentially where the frequencies begin to drastically roll off. So say, if the dial is a low frequency cut-off point and is set to 30 (Hz) then frequencies 30Hz and below will drop off dramatically.

 

[Jon Liu]

It depends on several thing, how big your room is, how capable the sub actually is, and your personal preference? We never did find out, was it a high pass or or a low frequency cut dial? Chances are if it goes from 40-100+ Hz then it's a high pass. If this is the case, then I would just put it as high as it can go and then let your receiver handle the crossover frequencies.

 

[Jon Liu]

That's a high-pass filter. So put that up to 200 and let your receiver handle the sub-crossover.