Welcome! Need support, you got it. Or share your ideas and experiences.
Return to Planar Speaker Asylum
24.16.182.7
In Reply to: RE: The older Magnepans also used a butterworth alignment for the mid to bass portion of the crossover. posted by GreatSound on November 27, 2021 at 10:34:29
Well, it's debatable whether those are Butterworth acoustic alignments.
Regardless, only Butterworth alignments of first-order sum to a flat response. All others have a hump of approximately 3db at the crossover frequency. Those older Maggie models are definitely not first-order.
Dave.
Follow Ups:
' Regardless, only Butterworth alignments of first-order sum to a flat response.'All buterworth filters have the flattest response in the band pass vs other alignments.
You are a novice that does not understand filters and crossovers.
Edits: 11/28/21
and then deleted it, GS.
You really need to get a hold of yourself. :-((
Andy
You stepped in it knee deep with that uninformed comment.
.
No, I'm afraid not. :) Butterworth filter sections are maximally flat, but not the crossover alignments. Linkwitz-Riley, among others, sum to a perfectly flat amplitude response.'Better break out the textbooks on various filter alignments and get yourself up to speed.
This is a page I've contributed to a few times over the years and it's pretty well sorted out now.....as Wikipedia pages go. Start with that and that'll get you back on track.
Dave.
https://en.wikipedia.org/wiki/Audio_crossover
Edits: 11/28/21 11/28/21
The MGIIIa manual suggests a butterworth alignment for the bass section when using an active crossover.There really is not a completely butterworth crossover, used in audio.
Edits: 12/03/21 12/03/21 12/03/21
You're tap dancing backwards now. As I said earlier, "it's debatable whether those are Butterworth acoustic alignments."
I'm well aware of how these crossovers work and how to construct active equivalents or variations of them.
Here's an example of 3.6 prototypes I built (still in use BTW)....and contributed to this forum over twenty years ago. :)
http://www.integracoustics.com/MUG/MUG/tweaks/davey/mg3.6xo.htm
Next time you comment on my posts, have your shit together.
Dave.
It is debatable whether your solution is better than the stock crossover!
My solution IS the stock crossover. Curves are identical.
Did you even read the page?????
And, it's only one, possible, solution. I'm not saying it's the best solution. Line-level crossovers allow much more versatility in implementation and other improvements.
Dave.
"stock" is the same and not a solution to a non existent problem!
A crossover design is more than "curves".
What makes your solution better?
Maybe one of the other fellas can school you on the basic concept.
You have all the appearances of a troll. I can't be bothered further.
Dave.
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: