Blog Archive

The blog format made it tough to organize content, so I archived all of my builds on the DIY Firefly website.

From this perspective, this horn looks huge (it's not really that big).  I made some more progress on the horn and devised a nice way to attach the driver cabinet to the horn through "wings."  I attached them with Festool Dominos for a really strong link.  This way, the driver chamber is fully detachable from the horn if I ever decide to swap the EV15Ls out for something else.  I took a lot of pictures of the build which I'll post when I get a chance.

100 Hz Conical Horn

After researching mid/upper bass horns for several months, I used Hornresp to model a 100 Hz conical horn for a pair of EV-15Ls I had lying around.  I'm trying to cover 100 Hz to 600 Hz with this horn.  I liked the idea of going with a multi-sided conical.  It should look great with my 320 Hz round tractrix horns. 

 

Here's a pict of the first cone I glued up.

After I built this horn, I stumbled across Bill Wood's website.  He designs and builds 12-sided conical horns from 300 Hz on up.  He even has some nice throat compression driver adapters.  His horns look great, especially since he's using solid wood (maple and other woods by request).  I used 3/4" Baltic Birch for mine.  He also has his observations and impressions of conical horns, which he prefers to other types of flares (including tractrix and exponential).

I'll post design details this week after I sneak out to CanJam Chicago tomorrow.