Coax Array Speaker Build - Part 1

Getting started on an interesting speaker design, something I'm calling a "coax array". The concept is to replicate a large dual concentric (coax) driver with a ring of small midrange drivers around a central horn-loaded tweeter. The advantages in using this arrangement are higher power handling, high sensitivity and it sets up a true point source. The array handles frequencies from 300Hz to 20KHz, while the dual woofers take care of 300Hz and below. This should produce a speaker with very even coverage over a wide area of listening positions. In this first video I summarize the design details and get the solid wood milled for the baffles of each speaker. I'm using red oak and being very selective to get a clean, defect-free appearance. That means gluing several pieces together to make the 12" wide baffles.

It's good to see you following up on this one.

Great work, and great video. We live in interesting time. Thanks. And I'm still terrified of table saws.

if i had a wood shop, i would probably make speakers all day, among other things of course. i am looking forward how this Coax Array Speaker turns out :)

Really enjoying your videos. As an audio file and newbie woodworker I am learning a lot. Please keep talking through the whole process. It helps when you describe everything you’re doing! I personally really like this design BTW. I am looking to build some speakers soon and this looks like something I would enjoy. Keep up the good work!

Very promising start I think! Nice choice of wood for the front baffle.

Love your videos! Keep up the good work!

Very cool and nice looking oak wood

Good to watch you mill up wood again. I know that it can be a PITA but I find milling to be very relaxing, as long I am not trying to squeeze every inch out of the stock.

good idea i hope it works out

I was about to comment on the tekton double impact. The sensitivity is very high for those. Less moving mass. How many try to beat a race car but instead make it look look like a van. Na ga, na ga na happen. The hardwoods are always a nice touch.

The speaker design looks nice to me. I wonder how you wire the ring of the midrange speakers to achieve an equal and not too low Impedance.

It’ll be interesting to see your crossover design and compare it to the Tekton speakers I think this design is inspired by. Getting the attenuation right might be the hard part. I’ve been debating this type of design for a while now. Enjoy the build.

Very interesting build. What specific advantages do you see over an 8 or 10 inch pro coax? Are you able to crossover higher up?

OK... so a hundred and one questions, but the two most prominent in my mind at this point are, why not use a live edge baffle? (especially in an open baffle situation, which I know this is not), and, why do you prefer construction adhesive to ordinary wood glue?

Why isn’t this an open baffle for the woofers?

Unsubscribing as requested John.

Patent infringement in this arena (US patent law) is based upon 'prima facie' which means 'first impression' and/or 'at first glance'. I'm confident we've already been here and we've patented what I'm seeing unfold; https://en.wikipedia.org/wiki/Prima_facie