Was just curious about something hypothetical, humor me if you would:I've seen plenty of evidence to suggest that flying subs with the mains will produce the most even sub-bass coverage in a room.I think a lot of people are of the opinion that ground-stacked subs allow you to "feel" the sub-bass more, although this obviously has a lot to do with number of cabs, locations, and a thousand other factors that I'm glazing over at the moment.I've seen a few examples of where subs were both flown and under-stage. Is there any benefit to doing it this way? Having the subs under-stage to add some "impact" while still having the benefits of flown subs? Or could this be a "worst of both worlds" situation? What about running the flown subs full range and the under-stage subs off an AUX/Bus/Group?As I said this is just hypothetical and merely to satisfy my own curiosity. Thank you for your indulgence.
Delaying the ground stack subs relative to the flown subs (or vice-versa) will allow you to steer the vertical lobe (created via this dipole arrangement) up or down. Think of this as a vertical "power alley" like you'd have with horizontal L/R ground stack subs.
Hmm. Never thought of it like that, but this makes sense.On the topic of directional subwoofers -- I've never seen this done but I am curious -- does anyone use a cardiod array in both the horizontal and vertical plane? For instance -- 3x3 stack with the center element reversed.
F R FF R FF R F
Do a model and see if things change using different layouts.
THIS is some VERY good advice.There are all sorts of free modeling programs out there (with varying degrees of quality-flesxibility etc) that let you "play" with different setups.A LOT can be learned (both from subs and full range behavior) by simply putting speakers into some positions-adjusting them-changing delay times-physical locations-different freq and so forth.One can gain VERY VALUABLE insight into how loudspeakers behave by doing this.Of course it takes time and energy-but the KNOWLEDGE gained is MUCH more than the time invested.Learn how to TEACH YOURSELF and you will be much wiser than somebody who know only knows little tidbits of information they pickup on the web and such.
Oh, Ivan! You silver-tongued devil! (/swoons)I bring it up routinely... hook stuff up and listen to it, make changes and see if those changes do what you thought they would. Now with computers and Really Smart PeopleŽ, we don't have to own a dozen subs or a place to set them up in order to get some insight into how a particular deployment will work.The tools available today are incredible. I remember observing a technician hand-tune filters while watching Lissajous patterns on a o-scope. I remember when a 1/3 octave RTA meant you were In THE Club. And the propeller beanie guys were talking about time/distance and to us it was a 4th dimension... until the lightbulb came on over our heads...The modeling tools Meyer and Danley offer, the products from l'Acoustic, JBL, EAW and other manufacturers, EASE Focus2, etc take just a couple hours to learn the fundamentals of. And for the most part, they're free. When software like this first came out it was tremendously expensive and hard for non-engineers to use. Now you download an installer and be learning in 20 minutes.
Are there some good tutorials online for using products like EASE Focus?I'd love to learn how to do models.
The young guys have no idea how valuable forums like this are.
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