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semper avarus eget 24th November 2011 02:54 PM

Dr. Leach Very Large Enclosure 3-Way Speaker Design

Back in the late 80's when I attended Ga. Tech I downloaded a 3-way speaker design from Dr. Leach's website. This design is not the Vifa 3 way speaker design that is currently available (which I built many years ago and still have them!). This design, by Dr. Leach, is a 3-way speaker with a very large internal enclosure --

D- 27.5cm

I actually had the enclosures built by a professional woodworker about 15 years ago!

For some reason Dr. Leach removed these plans from his website. I realize that I may never find the original plans and if I did I assume that the drivers would be discontinued. However, I would like to use these enclosures and would like any guidance to determine how to go about selecting drivers / cross-overs for this exact enclosure. I have the Dr. Leach textbook on order which I understand provides guidance in designing speakers. I want to jump start my project and would like to hear from anyone willing to share their thoughts about how I should move forward with this project.

By the way, I just learned last week that Dr. Leach passed away last year; I was saddened to hear this news as I was one of his students many years ago but never pursued mastering audio or speaker design at that time.

Thank you,

frperdurabo 24th November 2011 04:02 PM

Perhaps you could use the internet wayback machine to find an old version of Dr. Leach's site:

dirkwright 24th November 2011 05:06 PM

I'm sure you can find suitable drivers if you look. I'd get "The Loudspeaker Cookbook" and download BASTA! and get to work!

semper avarus eget 24th November 2011 05:59 PM

Thanks for the reference to the book "The Loudspeaker Design Cookbook" by Disckason and the reference to BASTA. Would this be a better book than "Introduction to Electroacoustics and Audio Amplifier Design" for this project?

saschagabor 24th November 2011 09:47 PM

Have you looked here?

Dr. Leach's Amplifier and Speaker Projects

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