Waveguides and horns

[jzagaja]

Red is AMT in small baffle. Blue in EJMLC-300 horn (deg0).

 

[jzagaja]

Here are the plots when back is opened.

If there is an interest in group buy let me know.

 

[virious]

Hi,

What is the throat angle of the JMLC horns? I have not been able to find the information anywhere.

Thanks,
Jeppe

 

[jzagaja]

Usually very low:

JMLC horn for JBL 2452sl

 

[jzagaja]

Now 250Hz waveguide is avaiable also for 1,5” drivers.

 

[Tonyb]

Nice.

 

[jzagaja]

Heimkino 12/1-2019.

 

[chrapladm]

Sorry if its been mentioned but is this horned design based on a 2"CD?

I saw AMT earlier but was curios what AMT. I have some TPL150 and 200's.

 

[jzagaja]

This one is 250Hz waveguide for 1,5 and 2”. Earlier was ejmlc 300 horn for Aurum Cantus AST25120.

 

[pk]

Heimkino 12/1-2019.

Hi Jzagaja,

Thanks for posting! Is that a BMS 4592N used as a compression driver in the Black Swan, and do you know the crossover point between the compression driver and the woofer? Thanks!

Best regards
Peter

 

[jzagaja]

4596ND, 350Hz@24dB

 

[pk]

4596ND, 350Hz@24dB

Thanks a lot!

Best regards
Peter

 

[Ro808]

Cześć Jacek,

Do you perhaps have measurement data of the EOS 250Hz available?

Did you already have the chance to try other drivers with this horn? It'd be interesting to see how a 1.4 or 2" Faital-Pro, B&C, Beyma etc. would do. The Faitals are supposed to take 400-450Hz and my older B&Cs are ok at 500Hz.

I should not forget the 4" diaphragm RCF drivers, these are very hard to beat at the (local) prices.
The top of the line 950ND 2.0 (plot attached) is just under €300.

 

[Ro808]

The Faital HF2000, which is almost 2x the price of the RCF.

 

[jzagaja]

I don’t have samples at home nor measurements. Will post if somone buy for a project.

BC is open for making new coax. Anyone interested in new group buy?

 

[Ro808]

That's a cool looking coax. Chassis looks similar to Audio Technology's Flex Units.

There's a Wave(guide)Cone?
I suppose both suspension and cone would have to be optimized to prevent deformation?

 

[jzagaja]

It’s for illustration only. Will be optimized. I need declare minimum order quantity.

Anyone use DE360?

 

[gedlee]

Jacek

That would be a nice solution and B&C is just the company to do it. I have not used the DE360, but have always found their drivers to be of exceptional quality. I think that the 360 is a smaller diaphragm driver (can't check their website is down.) I would however prefer to see the DE550 used as it is an exceptional driver.

 

[jzagaja]

Earl,

In 2013 when was active in audio I have used DE500 (Titanium) in 12” OS and 12B100R. Was very happy with results. BC is safe choice. So far only company that replied.

PET film for home use, Titanium on stage.

 

[454Casull]

It’s for illustration only. Will be optimized. I need declare minimum order quantity.

Anyone use DE360?

That's my model... would like some credit for it at least.

18" 90-deg OS WG coaxial (design)

But hey, if B&C wants to run with this idea, I wish them all the best!