Quote:
Originally Posted by BrianG
Yeah, and the Ndb/oct is the slope of the cutoff.
12db/oct in a HPF means that for every halving of the frequency, the output will drop by 12db.
12db/oct in a LPF means that for every doubling of the frequency, the output will drop by 12db.
So, even though you have a HPF set up, the speakers are still getting some low frequencies and could be overworked trying to produce bass frequencies. A steeper slope (like 24db/oct) helps. 6db/oct (which is what you get using a capacitor on a speaker) is unsuitable IMO - the slope is not very steep.
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I believe my headunit maxes out at 180Hz (so 18db/oct)?
I'll put that up and test it out then.