[xaMdaM]

Nathan,

If you look on the right side of Bob's mode calc page, notice the piano layout...

It's almost impossible to create a room that doesn't have at least some sort of harmonic that's going to be that room's signature.

That's the point I was alluding to in your other ratio's thread.

When you are agonizing over the ratios for a control room, you certainly don't want to pick wavelengths that are going to become problematic when instruments are in pitch with the room.

One tip I'll pass on, (that is gonna drive ya' nuts, btw) is to make sure that you're final ratio is the FINISHED boundary size.... then work BACKWARDS to find out how big your framing should be.

Once you've done all the math to find frequencies that are not going to cause harmonic sympathy, you don't want to end up building on top of that number and accidentally just getting into a range where a note will then create a sympathetic node.

(I only hope I've been reasonably clear)