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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

Showing 8 responses by kijanki

kijanki's avatar
kijanki
4,410 posts
 
Cabasse are round while Fujitsu are oval/egg shape. Cabasse is a multi driver design. Cabasse is Swiss and Fujitsu is Japanese. They are not related in design, I think, but shape is pretty similar.
kijanki's avatar
kijanki
4,410 posts
 
Stereophile reviewed Fujitsu-Ten Eclipse TD712z single speaker design with 40Hz-20kHz @ -10dB and 70W max power. Sound was - quote:

"As I played a variety of CDs and LPs, the system with the Eclipses had a clarity, transparency, resolution, timbral accuracy, and specificity of imaging that were simply breathtaking."
kijanki's avatar
kijanki
4,410 posts
 
I don't have experience with electrostatic speakers but, if my memory serves me right, they have poor bass extension, less than perfect dynamics and narrow/small sweet spot not to mention large size. Don't they have, being bipolar speakers, to be positioned far away from back wall?
kijanki's avatar
kijanki
4,410 posts
 
Mariusz - every design has some positives and negatives. Electrostatic panels are often problems in places with very high humidity and a lot of insects (high voltage attracts them). I don't mean to criticize electrostatic speakers - just to show that every design has some negatives.

Single driver design for DIY might be not the best choice - it is difficult and drivers are not available. Fujitsu Eclipse I mentioned contains just one 4.7" driver and costs $7000.
kijanki's avatar
kijanki
4,410 posts
 
Lowest string of the bass is E=44Hz. Grand piano's A=27Hz is seldom used. I will settle for 50Hz. On the high end - I probably cannot hear above 14kHz. Maybe I should go for single driver design.

Only one question to all DIY guys - why Revel bought so expensive test equipment (laser diffraction included) that other companies cannot even afford it? It is much, much more complicated than carpenter's work and veneering with the roller. As for the fun - I am all for the fun.
kijanki's avatar
kijanki
4,410 posts
 
Mariusz - I checked Lowther website and found that EX series speakers go as high as $2k a piece. Some of designs they show use 2 speakers per box = $8k in speakers alone (I like to have the best). One of the titles of their FAQ is "Why bass refleks is the best". Now I'm not sure I should trust them. According to Andrew Lipinski (Lipinski 707 is A class in Stereophile) bass refleks is th worst possible choice because of coloration.
kijanki's avatar
kijanki
4,410 posts
 
Mariusz - he is my countryman as well but he operates in Massachusetts and it is not walking distance from where I am. I will take you on this offer - didn't you say 75% discount?
kijanki's avatar
kijanki
4,410 posts
 
Mariusz - That's great! I read Stereophile review of 707 speakers. Have you heard them? The other option is to keep modifying my current speakers but I have already problems with new tweeter (Morel Supreme 110). Maybe two Fostex unit could replace speakers I have. Size is pretty much the same and the box is very rigid (Paradigm Studio/60).
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