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In Reply to: RE: Yes, but how? posted by djk on October 08, 2015 at 23:06:11
Ok,
I do have an XTZ room analyzer. Will an acoustic near field measurement give me the information about how to design such a filter?
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Does DSP hold a solution? Even filters of 96db/octave can be designed. Some of the software includes as many as 5 parametric EQ (PEQ) channels per INPUT and OUTPUT. Those outputs can be for a 2-way or greater speaker with sub.
I don't understand the math, but the intent would seem to clearly indicate use of some form of Digital Filter would work.
One such, the FIR filter is phase flat.
Too much is never enough
I initally used a minDSP for various x-overpoints,filter orders and time-alignment settings. But to my ears, even the simpliest passive x-over (47uF Bi-polar electrolytic cap (approx 470Hz/6dB)) was far better.
Perhaps is just me, but something sounds dead when processors and software gets in my signal chain.
If you ever get to an audio show, one of the big ones, try to hear the Linkwitz Labs stuff. Some of their speakers use the MiniDSP gear for crossovers and such.
And don't forget, if you previously tried the entry level 2x4, nothing but improvements have been made in computing power and capability SINCE than.
I think by the time you construct an all-analogue solution it will be VERY complex and may not sound as good as your simple capacitor.
Too much is never enough
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