Back in the summer of 2011, I decided to try my first attempt of building my own speakers. For years, I wanted to build a speaker system that was similar to various Polk and Monitor Audio speakers that I’ve seen and heard over the years. I really like the RTA and SDA designs by Polk, so a lot of my choices were influenced by those systems.
What I decided to build was based on a MTMWW setup using two 5-1/4″ midrange, one 1″ soft dome, and two 8″ woofers. So after much research on cabinet design and speaker parameters, and cross over research I decided on using Dayton Audio speakers from Parts-Express. I felt they were an economical solution with good parameters for a sealed box enclosure.
The speakers I chose were the following
Dayton Audio RS28F-4 1-1/8″ Silk Dome Tweeter
Dayton Audio DC130BS-8 5-1/4″ Classic Shielded Woofer
Dayton Audio ST210-8 8″ Series II Woofer
With that in mind, I had to design a cabinet. I used Jeff Bagby’s Woofer Box and Circuit Designer to determine the woofer portion of the cabinet. I figured that will get me the lower core box volume need for a sealed and enclosure.
My second part was to use Jeff Bagby’s Baffle Diffraction and Boundary Simulator 1.20 to figure out the best location for the tweeter and midrange on the front . I used this information to also determine the Baffle cabinet width.
Playing around with various cabinet dimensions and speaker placements, I came up with this over all cabinet layout. These are in a mirror layout.
Tomorrow I’ll followup with further details on Crossover design.