Members wesg Posted August 22, 2017 Members Share Posted August 22, 2017 Are all 1/3 octave GEQs (of the non-crap variety) created equal? The numbers above sliders indicate the center point of the EQ curve, but I can't seem to find specs anywhere about the "Q" (bandwidth). It seems to me that a wider bandwidth would be better for some applications (tonal shaping) and a narrower bandwidth would be more useful for others (feedback). Is this information published anywhere? The dbx stuff has a switch that affects gain (6dB or 15dB), does that switch affect bandwidth as well? Thanks,Wes Link to comment Share on other sites More sharing options...
Members Axisplayer Posted August 23, 2017 Members Share Posted August 23, 2017 You have probably read this before, but it covers some of the question. http://www.rane.com/note101.html Link to comment Share on other sites More sharing options...
Members wesg Posted August 24, 2017 Author Members Share Posted August 24, 2017 Thanks: that was a VERY informative read. It turns out that all my EQs are of the Constant-Q variety, so they are more-or-less "all created equal". Wes Link to comment Share on other sites More sharing options...
Members Axisplayer Posted August 25, 2017 Members Share Posted August 25, 2017 Glad it helped you. Rane notes are usually very good information. Link to comment Share on other sites More sharing options...
Members dboomer Posted August 26, 2017 Members Share Posted August 26, 2017 Back in about 2005 we did a pretty extensive study of the then available GEQs and measured about 2 dozen for Q. I don't have the info any more but it was widely posted as "Bink's Eq shootout". Maybe it's still hanging around somewhere. As I recall the Yamaha units had the widest filters. Link to comment Share on other sites More sharing options...
Members Dogoth Posted August 29, 2017 Members Share Posted August 29, 2017 I believe White Audio made a graphic that had an interesting feature. When you brought two adjacent sliders down, it actually moved the center frequency between the two (by varying which slider had more cut, you could in effect sweep the center freq up and down). I'd guess it also made for a wider bandwidth filter. Great idea really. I just remember White Audio gear was really expensive (long gone now). Link to comment Share on other sites More sharing options...
Members dboomer Posted September 1, 2017 Members Share Posted September 1, 2017 Most GEQs act like that. Link to comment Share on other sites More sharing options...
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