[drummermitchell]

These are the number of wells from QRDude.
It seems a few companies like the 7 well diffusor(WHY)is it just economics.
What does the 7 root have that the 13,23 or even 37 don't have as far as what happens to scattering.
I have to be missing something here as looking at some larger D1 with more wells we seem to get a lot more scattering which to me might be more musically involving.
Some say multiples of smaller diffusors is better and some say use a larger prime like 17,37 ect.
Even GIK, RPG uses a 7,so does anybody really know why a 7 is MUSICALLY better than a higher welled diffusor.
Has anyone compared  the 7 against a higher prime.
Would like to diffuse this dillema.

[bpape]

It's not that 7 is better or worse, just different.  When marketing things one needs to consider the size of the unit. We can do higher roots certainly but to do so in a reasonable sized form that fits a variety of locations, the wells then need to be narrower, which in turn, changes the depth of the wells, which in turn slides up the range over which a diffuser functions effectively.

Bryan

[jriggy]

So essentially it's just a 'sweet spot' so to speak, for a multi-purpose diffusor in a still manageable size?

[drummermitchell]

THX Bryan,so if marketing wasn't a factor would you say a higher prime like 19 or 43 would be musically more appealing to the ears.

[bpape]

Higher roots tend to have smoother dispersion patterns.  Doesn't mean they're more pleasing to the ear necessarily.  Again, each application has options pending what you're tryhing to do.  And just to be clear, our Grid Fusor is a 13 root.

Bryan

[drummermitchell]

One last Q Bryan,obviously you have listened to a few types 7,13 ect.
Any preference and could you explain why, then I would bug you until monday with the dreaded ph call.
Appreciate your input on this .

[bpape]

Again, it's not really so much of a preference per root, it's more of what works in which location and for the desired effect. Up high in a room, a simple 13 root with a higher overall range works great for slap and flutter echo.  Down lower in the reflection zone, I prefer something that will go in a lower range.  Either 7, 11, 13,23, etc are all going to perform the same here other than smoothness of dispersion pattern - just a matter that to do a diffuser that will get down into male voice range in a 23 root is going to be pretty big and many people simply don't have room - where a mirror imaged pair of 7 roots may fit and do an excellent job.

Bryan