Waveguides and horns

[doug20]

If I end up just using a regular 2" CD on the IWATA-300 what is a good solution for adding a horn for >= 8KHz It seems like its going to be pretty hard to a nice seemless design.

[jzagaja]

Try small ribbons 8-60kHz (ca. 100$):
http://ans.sklep.pl/images/VENUS2%20600zw.jpg

they produce a lot of "air" (a bit too much for my taste) in comparison to OSWG+4524.

[tubino]

Originally Posted by doug20

If I end up just using a regular 2" CD on the IWATA-300 what is a good solution for adding a horn for >= 8KHz It seems like its going to be pretty hard to [find] a nice seamless design.

Pardon the heresy, but maybe for >8khz it doesn't have to be a traditional horn to work well in this application?
https://www.madisound.com/store/inde...ath=45_229_236

102db/2.83v/1m ain't bad:
https://www.madisound.com/store/prod...oducts_id=1557

I just started goofing with RAAL ribbons crossing over at ~9Khz, 3rd order (= 4th with transformer), and I think the dispersion works with waveguides. YMMV.

EDIT: I submitted this before seeing jzagaja's response. Kinda redundant now, but kinda not...

[PeterDupont]

Don't never, ever blend horns with direct radiators without loading! Unless in the low region.
I have heard so many midrange horns with ribbons that just preach "look, I'm trying all I can to keep up".
If you have the doe, try a couple of Fostex
https://www.madisound.com/store/prod...roducts_id=293
Maybe ruin your bank-account - but they are way better than the TAD 7's and blend in much, much better.
And any old JBL or whatever ring- og slit-radiator will give the "air" that's needed!

[jzagaja]

First group buy is now finalized:

AVS Forum - View Single Post - Hey guys...we need a little rallying here...

[Scaper]

Guys, I got the pallet in from Poland and everything looks great. It's all been unpacked and I'll start wrapping the items up this weekend for shipping.

Waveguide and Horn Delivery (Photos) - AVS Forum

[jzagaja]

Found first pictures from Munich:

Images du High End 2011 de Munich (partie 1)

http://lh6.ggpht.com/_4eOIBwikWQE/Td...I/P1090180.JPG

Today's morning all play... sine sweep

[doug20]

Originally Posted by Scaper

Guys, I got the pallet in from Poland and everything looks great. It's all been unpacked and I'll start wrapping the items up this weekend for shipping.

Waveguide and Horn Delivery (Photos) - AVS Forum

I love that IWATA-300

I do wish I ordered gloss black now, I will try to paint them

I have the BMS 4590 on order now so I hope its a good match to the IWATA-300.

Thanks Eric and Jack for all the work so far. This is going to be exciting, my horn/CD alone is more expensive them my last 3 pairs of speakers. Im trying to tone down my expectations.

[Frode]

Originally Posted by doug20

I have the BMS 4590 on order now so I hope its a good match to the IWATA-300.

I'm very happy with my Iwata 300/BMS 4592ND combo.

Frode

[jzagaja]

For wide bandwidth single horn application Iwata and Ejmlc (check website for new models) are recommended because for example JMLC-200 power response expose midrange and in weakly furnished room for some can sound like a megaphone.

Yesterday I was examining Harwood AMT 30 and Seas RNX in small 20 litres box. Very good tweeter (clean CSD) but directivity suffers and has less vivid tonality, power than let say 4524 in OS. I can describe it as typical dry, smooth sound - better than typical ribbon with exaggerated highs.