Hard Audio - Ceramic Speakers

Hey @m-db so what electronics did you end up pairing those Eidolons with?

@audioman58  Interesting!! I'll have to see if I can have a listen sometime.

@likecap 

Interesting they are made with Focal Tweeters, and another, non-ceramic woofer. :) 

I wonder if they add color? :) 

Best,

E

I also want to point out that many, many drivers have break up modes / ringing in the top end of their usable range. Dealing with this is not all that difficult or new. 

How it is dealt with in crossover design depends a great deal on the next component up the frequency spectrum. Low pass filters may put the ringig 20-30dB or more down in response making a specific notch filter irrelevant. All the fans of the Focal inverted domes have ultrasonic ringing which they don't seem to complain about very much either. :) 

And sometimes we deal with the resonance by designing speakers not to be toed in. :) 

Best,

E

AFAIK, damping the FR damps the ringing as well. Something about this is how minimum-phase devices work.

It’s not intuitive. We believe that a passive or active EQ would affect the frequency but not time domain, but I’ve read otherwise.

In rooms, the same principle works, with some help from bass traps. 

Best,

E

Maybe I'm just fussy, but as far as I can tell, those Infinity drivers are basically anodized aluminum drivers. That is, they make aluminum drivers and then using acid and current (I think) they transform the outer layers. This is essentially what Calphalon does for it's cookware, no? 

And yes, Accuton are considered technically among the best drivers made. Certainly based on measurements and low distortion this seems to be the case. And yet... I'm happier with paper cones from Scanspeak. Kind of why I started this thread. :) The engineer and music listener in me do not reconcile well when it comes to these particular drivers.

Best,

E