Its a bass reflex MTM bookshelf speaker. It utilizes two four inch woofers and a small dome tweeter.
I designed these speakers in my high school Advanced Audio Systems course, with the help of my teacher Mr. Grant Gustavsen. as a replacement to the sold out C-Notes. They needed to be around $100 and have a similar size and performance.
Dayton Audio TCP115-4 4″ Treated Paper Cone Midbass Woofer 4 Ohm – 295-415
Dayton Audio ND20FB-4 Rear-Mount 3/4″ Soft Dome Neodymium Tweeter – 275-035
It is a bass reflex box with .2ft^3 volume and is tuned to 76 Hz.
Particle board construction capped in poplar for aesthetic value. I sectioned off the bottom to make them taller and keep the internal volume constant.
The crossover is a two-way third-order Butterworth with a Zobel on the woofer.
Tips & Tricks:
A couple of kids in my class built the C-Note kits, and I feel like these met or even exceeded their performance. I think that these are great speakers to build on a budget.
About the Designer:
I’m a high school student who took tech class for the fun of it and my teacher Grant Gustavsen introduced me to the wide world of speaker designing. Through this I found a passion for sound quality and music appreciation.
Project Parts List:
Well done sir. Nicely done.
Awesome! Tell me you used MDF not particle board for the boxes…
It’s technically particle board but it’s very similar to MDF
Do you have any idea how lucky you ate to be taught loudspeaker design in highschool?!
Great job on your speakers. I really like the look you came up with. In an age when many adults don’t even know how to use basic tools or own a proper stereo system, you should be very proud.