Waveguides and horns

[AllenB]

Let us know what you find. It's definitely looking the same or cheaper to ship straight from autotech.pl to Australia ... I've queried some pricing from them. If they go close enough to the GB pricing, then I looks pretty sure that Aussies should just order direct.

Just following up, Dave. I haven't been able to find the information that I was looking for just yet. My focus is on other things right now so it's looking like I might chase this later.

 

[amandarae]

Any news on the group buy?

regards,

Abe

 

[rajacat]

Phusis,
Thanks for the update/review.
I especially like your statement that the Mummies are good with complex music.

 

[jzagaja]

Typical driver and driver optimized for waveguides.

 

[_Wim_]

Typical driver and driver optimized for waveguides.

Would be nice if somebody was willing to manufacture these (preferably at high volumes to keep cost donw...) Any future plans?

 

[jzagaja]

First we must run test with printed phase plug - modification is easy. I would like to use Radian diaphragm or DE250 for comparisons.

 

[3GGG]

So how do i get a pair of Carbon fibre JMLC 350's to Australia?

 

[davewantsmoore]

So how do i get a pair of Carbon fibre JMLC 350's to Australia?

After speaking with them a bit, the best option for Aussies is probably just to order direct and pay shipping. The prices on offer are as far as I can see the same as the 'group-buy' prices. Shipping worked out to be about $100 AUD (which is about the same as shipping for the group-buy, via USA would have been).

 

[3GGG]

Thanks, i have emailed autotech site. Cheers Dave

 

[davewantsmoore]

I had to follow up a couple of times before I got a response from them. Although, they were very helpful when they did respond 🙂

 

[NYCOne]

Beyma Studnio - for example 12BR70. Will try post ejmlc300 measurements asap. Crossover in 2" coaxial BMS: 1-2uF capacitor. Ringradiator - all BMS drivers (and some JBL too).

Any luck with the EJMLC300 and the BMS 4590 measurments?

What would you recommend for a BMS 4590 - if any of your horns were possible?

How about for a TAD 4001?

 

[NYCOne]

Yeah, Replacement cost is $500 or more, I have checked out the sources. I have been reading about the JBL diaphragm upgrades that exist online too. Never had much luck on Craigslist but I search ebay weekly for deals.

Once Im done with the 2-way larger horn design I will consider a 3-way and figure away to blend a very small horn/CD into the design (Not easily done without looking ugly). Remember though the BMS 4590 is a coax design so it has the Full 400Hz to 20KHz performance package in it. Im just not sure yet it matches the TAD but Im still figuring things out.

Doug - how would you compare the BMS 4590 to the TAD 4001 in the same setup? I have the 4590s and the 4001s are on the way.

I've been considering a JBL 2235 vented box underneath. It's used in the JBL 4333b and others for this purpose.

 

[jzagaja]

EJMLC-300 + BMS 4590. I like the sound very smooth and easygoing

 

[NYCOne]

EJMLC-300 + BMS 4590. I like the sound very smooth and easygoing

Thanks. Do you have any directivity graphs?

What would be your 1st choice for a BMS 4590 between the Itawa300, EJMLC300 and the JMLC200T?

Same question for the TAD4001?

 

[jzagaja]

Directivity:
http://horns.pl/ejmlc300.html


For single horn I would choose ejmlc300, for 2/3way and 1-1.4 inch driver JMLC350 as did Zoltan from Budapest:

http://horns.pl/galeria/Zoltan_2.jpg

plus sub, tweeter and optionally super tweeter. Below is ejmlc/bms mounting, wood parts will be French Polished.

 

[3GGG]

What is the finish on those horns, looks like a matt grey
http://horns.pl/galeria/Zoltan_2.jpg

 

[jzagaja]

Nextel

 

[NYCOne]

Directivity:
Horns


For single horn I would choose ejmlc300, for 2/3way and 1-1.4 inch driver JMLC350 as did Zoltan from Budapest:

http://horns.pl/galeria/Zoltan_2.jpg

plus sub, tweeter and optionally super tweeter. Below is ejmlc/bms mounting, wood parts will be French Polished.

Thanks again. I was hoping you'd have the directivity with the BMS driver.

 

[jzagaja]

Tractrix-350, Tractrix-1000, SEOS-6 directivity.

 

[NYCOne]

Tractrix-350, Tractrix-1000, SEOS-6 directivity.

I was asking (seemingly poorly) if you had directivity data on the EJMLC300 horn with the BMS 4590. Do those graphs exist?