Re: 60 Degree DIY Mid Hi
No ... they are the output socket numbers (1,2,3,4,5,6 L,M,H, L,M,H). Sorry I forgot the gains - the VHF and HF are the same. The mid to HF/VHF - you will have to take your best guess as I have not done any settings with the RCF drivers and the 60 degree horn.
We are both using slightly different processors, so I suspect there will be some variation from what I have done to what you are getting out of the QSC ... obviously they are not too far apart, but you may need to tweak things a little.
.... and yes the 90 degree box is great for most applications. The 60 degree box will be great in pairs or where you need a narrow pattern box to minimize wall reflections etc.
With your construction method if you find a better horn flare you can change it over.
I'm so pleased you guys are getting some great results 
~~:smile:
