Here is a set of speakers I built, mostly as a learning experience. My design criteria were;
a) Get an F3 around 100 Hz in open baffle arrangement.
b) Make it no taller then 12" and cool looking for high WAF.
c) Practice using my router.
d) Practice designing and building a crossover (1st time).
e) Practice soldering (never been good at it).
Starting out I had zero experience with open baffle speakers or building crossovers. I had gotten some tips on both from both this forum and others. From what info I gathered I picked the Pyle 6.5" PA speakers
as my woofers and the Hi-Vi TN28 tweeters
(mainly because they would look cool).
Pictures of my results are included. They sound good, very detailed and with a huge soundstage. They do a great job of filling the whole house with sound. There are a few issues remaining though.1) The rolloff around 79 Hz is as modeled, but there is another more shallow rolloff that goes from 120 Hz to almost 700 Hz. Some folks I communicated with think the 10" baffles aren't big enough. I know the problem isn't in the crossover - I have tested the speakers without the crossover to verify.
2) From about 13kHz to 20kHz the tweeter gets a steady rise in output. I have read that a R-L contour circut might fix this. I'm still waiting on a resistor I ordered to cut the tweeter down some before I try this.
To address #1 I'm going to order a set of these
. They are cheap, model well and will fit the existing holes I drilled for the Pyle driver. I'll test these to see if there is any difference. If anything, it will be fun to test and will reduce the possibilities of things that could be causing the problem.