Provided Link: RJB Audio Projects (http://www.rjbaudio.com)
> Yes it looks that way. I was just wondering
> because I only know P-E and Madisound for
> drivers and they have nothing. I already
> have a pair of the Pioneer 8" B20s and
> some old Electrovoice enclosures for them...
> that's my next project along with the
> matching sub-woofers.
> I'd love to get a pair of the Fostex 166s
> but they are too expensive for me right now
> but I am going to eventually get a pair of
> the nice Fostexs to make a super nice
> speaker. I'll get the boy to help me make
> horns... bwahaha.
> I ended up buying a pair of Silver Flute
> 5.5" woofers that were reviewed by one
> of the posters here in a big comparison,
> very helpful I love comparisons. :-) They
> were $18 and that's a lot for me to spend
> but hey, it's family. It's fun building
> speakers for other people when all they've
> had is jamboxes. I'll find her a nice 70s
> Sansui receiver or something.
> I have to learn crossover design now. Oh no.
> Stay tuned for more questions. ha ha.
> -kdt
The problem that I've had with full range designs is they don't sound so good off-axis. The high frequencies roll off and the larger the driver is the lower in frequency this transition begins. I built a fullrange design using the Tang Band 4" bamboo driver and found that there is really only one "sweet spot" when listening to them.
If you want to try to design a crossover without the use of measurement equipment then the best way that I know to model the crossover is using simulation tools and processing the manufacturer's response measurements to match the conditions of your enclosure. I have a tutorial on how to use the FRD consortium tools and Speaker Workshop to design a crossover at my site below under the "Audiofiles" link.
However, I strongly suggest that you start by building a proven project. Most of those are built by designers who have years of experience designing speakers and the crossover can be the toughest part to get right (and may be the most critical part). John Krutke has a two way design that uses the 5.5" Silver Flute driver at this link <A HREF="http://www.zaphaudio.com/audio-speaker13.html">http://www.zaphaudio.com/audio-speaker13.html</A> That might be a good design to go with but there may be other designs based on that driver out there. I suggest you post to see if there are any other designs that have been built using that driver.
I have a design (actually a bunch) that uses the Dayton Reference Series RS125 woofer in a pretty small two-way design. It is a ported design that has an f3 of 50 Hz which is pretty deep considering the size of the speaker but the downside is that they aren't very efficient. I have two versions on my site, the Microbe and the Microbe SE. I have also designed crossovers for several other tweeter options but haven't heard any of those so I haven't posted them on my site.
Beware, DIY speaker design can be very addictive and takes years to master. The more I learn about it the more I realize how much more there is to learn about. It can be a lot of fun though. These discussion boards are a great resource for learning.
I hope that helps. Let me know if you have any questions.