PDA

View Full Version : Onken crossover



Sootshe
11-03-2011, 10:43 PM
Looking for a design for use with an GPA 416-C in the Onken enclosure.
I've searched here, & the Altec forum & not been able to come up with a definitive design.

I have two options for the mids & top end.

Option 1: Timber tractrix horn with Klipsch K55 / JBL 2404H tweeter
Option 2: Timber tractrix horn with GPA 399 / JBL 2404H tweeter

I see Hiraga recommends 600Hz for the crossover to the mid driver.....2nd order.

Is it just a matter of using something like the "passive crossover calculator" & coming up with a standard design. Of course, I understand that this way will work, but will it give me a good result. This crossover design seems to be something of a black art, with some preffering mild slopes, others steep, etc

Not having any great technical expertise in these matters, but I see some people have used simple 1st order networks, others 2nd order & so on. Is it a matter of personal taste? I read things like "do I need a Zobel network on the woofer?" & "do I need to build in EQ for the horn?" & then I get really confused.

Any help appreciated.
Thanks,
John

stephane RAME
11-03-2011, 11:03 PM
This may be an example of a crossover 600Hz

http://www.audioheritage.org/vbulletin/showthread.php?11750-My-new-Loudspeaker-Systems-%E2%80%93-Great-Plains-audio

Stéphane

Sootshe
11-04-2011, 04:32 PM
This may be an example of a crossover 600Hz

http://www.audioheritage.org/vbulletin/showthread.php?11750-My-new-Loudspeaker-Systems-%E2%80%93-Great-Plains-audio

Stéphane
Thanks Stephane,
I have to admit that I can't follow that circuit layout....maybe I'll take it to a tech & see if he can build it for me. How are you going with the Onken's?
Thanks,
John

stephane RAME
11-05-2011, 11:44 AM
I use my box Onken tri-amplification with an FIR filter has 275hz.

http://www.audioheritage.org/vbulletin/showthread.php?29600-Altec-AcoustaBass-AB-2200-JBL-3732mhf-JBL-2402h#top

http://www.audioheritage.org/vbulletin/showthread.php?31523-Onken-360-%28GPA-515-8C%29-JBL-3732M-HF-JBL-2402h&highlight=

Stéphane

Sootshe
11-05-2011, 10:06 PM
I use my box Onken tri-amplification with an FIR filter has 275hz.

http://www.audioheritage.org/vbulletin/showthread.php?29600-Altec-AcoustaBass-AB-2200-JBL-3732mhf-JBL-2402h#top

http://www.audioheritage.org/vbulletin/showthread.php?31523-Onken-360-%28GPA-515-8C%29-JBL-3732M-HF-JBL-2402h&highlight=

Stéphane

Awesome!
You have put incredible effort into these, I'm sure they sound fabulous.
Cheers,
John