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Single driver speakers - opinions

1.Design - what is IYO the best design and why?
2.Sound - How would you describe the sound in comparison to other speaker designs?
3.Amplification - what works and what doesn't?
4.Is the WAF stopping your from moving in that direction?
What do you like or dislike about SD spks?
DIY v.s Commercial designs - Pros and Cons.

Feel free to express yourself and your thoughts about the Single Driver design speakers in this thread.

Ideas, your projects, pics, experiances are all fun and welcome.

From my experiance with at least two SD commercial design that actually worked like a charm, I have to say that I am seriously concidering it as my next DIY project.

Awesome speakers when done right.

Cheers
Mariusz
mrjstark
cdc
1,693 posts
 
I get confused with S-D phase angles but even S-D apparently change phase.
Here is one Jordan JX-92 so I don't know if they are as good as they claim.

What effect does this have on the sound/ Maybe Atmasphere will know.

Also people have noted that a ported S-D will not be coherent as the port is also out of phase. I don't know if this is true or not either.
cdc
1,693 posts
 
Here are a couple of examples of small driver but still reasonable bass if volume is not too loud:
Sampan

Sampan FTL
johnk's avatar
johnk
1,973 posts
 
The 4in are not even close to quality 8in drivers in performance. If they where I wouldnt offer a 8in full range only 4in. The 4in drivers are very limiting the 8in like lowther pm4a dx4 SEAS exotic Fostex f200a fe208esigma, PHY etc all are far far better than any 4in;) And Gawdbless I was the 1st to offer f200a loudspeakers. I worked hard to keep fostex from discontinuing f120a f200a. For 6 years I imported almost all the f200a that came to US. Still offer f200a as a custom built. But the new SEAS drivers a good step up from f200a so this is the 8in full range I offer now.
cdc
1,693 posts
 
The F200 by Bob Brines that I heard was very rough in the H-F and also required notch filter for nasty breakup. Any cheap $5.00 tweeter would beat it, IMHO. I would need more clarity to understand how every 4 inch is worse than any 8 inch, except for bass and dynamics, of course.
Take a good 4", use it in a small room, treated with C37 and EnABL'd and you have something very close to "audiophile" quality bass flat into the 40's. Again IMHO. Plus much better dispersion and soundstage than any eight inch. Horses for courses I guess.
gawdbless's avatar
gawdbless
1,235 posts
 
I can't comment on the sound quality of 4" cones, I do own though Fostex 6" FE168Sigmas in BLH, as well as the 8" F200a. As I listen to both every day, the F200a is way way better than the 6".IMHO.
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