If you have visited my website recently you will notice there are no more pictures or FR graphs at all. I unfortunately changed internet service providers which also made my email address bounce back emails for a few years but have recently gone back to the same provider. They deleted all my stuff but and I cant find the backups. Kinda sucks as the descriptions are nothing without pictures. Wish I made backups while I had a chance but did not expect to ever have problems with service providers (or other issues for that fact).

The alpha 6 horns I made were +/- 2.5db from 300Hz to 2KHz and a 60x40 degree dispersion angle and are physically compact. They are conical with flat sides. Very nice sounding horns, I actually still use them after this many years. I still have the specifications on my website if you want to build the horn yourself.

I did make a tractrix prototype of this horn at one stage but preferred the conical one as it sounded better to my ears and also had a wider freq band.

Post any questions.

Wayne- hello! Long time no see. How you been? I have to catch up whats been going on in the pi speakers scene. My normal email address works again as of about a week ago too btw.

• My DIY Audio Homepage

By the way, there are lots of posts about your midhorns here in the archives. All the discussions about your first tractrix midhorns, my 10" midhorns and your 6" midhorns are all right here. Easy to find 'em with the search function.

Still trying to dig up my old horn pictures!