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Allo

Well, my baffles are for a vertical array. A friend of mine built a "clone" of the Nola Grand reference and got a very good deal on the G1 ribbons... will send you a PM.

Don't be pissed about me keeping you in the dark regarding the ribbons; your comments elsewhere on the Nolas and ribbons in general had me loathe to make any recommendations. I think we may have very different tastes in terms of treble reproduction; I like my ionofanes, for example, but more to the point, I have not not spent much time yet trying to integrate a tweeter with the S2s, which is what this all about. And the ESG array is for another project which is shelved for the near future...

I wonder if for 10kHz and up, you want to use narrower ribbons than that on the G1 for best results.

The guy who runs RAAL has made a custom, multi-ribbon dipole arc of adjustable curvature looking exactly like what you want (save perhaps for diplar operation). There was a picture of it here:

http://www.diyaudio.com/forums/showthread.php?s=28fd849ad2d3e2f2e65669cd3232c54e&threadid=62391&perpage=10&pagenumber=168

but I think it's gone. See post 1673 for example. I have been playing with FEMM lately looking at something similar but without the curvature.

Anyway, I will try and get some measurements of my G1s for you to see what the sensitivity is like relative to some references.

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