Ultimate Open Baffle Gallery

[DrDyna]

The cheap Porsche - HT18 18″ Subwoofer | Stereo Integrity

Wow, that is a good woofer for that price...a bit more power handling would be nice, but for the money, you could just use two where you'd use one

 

[zmyrna]

CLS,
What is your crossover point for the SLOB subs?

 

[CLS]

Hi,

Electrically (in line-level), 40 Hz @ the central one (by the built-in filter on plate amp); 80 (or 100?) Hz on both sides. I guess the actual (acoustical) xover points would be higher because the intrinsically rising response of dipole and a lot of overlapping.

 

[CLS]

Quite some years ago, I had seen these beautiful pictures: http://www.diyaudio.com/forums/subwoofers/199547-how-get-best-bass-reproduction.html

The transparent baffle and the sub with curvy Kalson slot is one of a kind. It seems by German, but I can't find the designer/maker because the pictures have been forwarded in countless jumps.

Any ideas?

 

[Rudolf]

Dipole Subwoofer

Definitely NOT German.

 

[Face]

Work in progress.

 

[Jonasz]

Sweet!

What drivers? TD15M and...?

Work in progress.

 

[Face]

Thanks!

BMS 1.4" coax behind a SEOS24, TD15S up top and a IB15 on bottom. Structure is solid 5/4 mahogany. Crossover is passive on horn, active on woofers. Sub will be a UM18 in a sealed 4.5cf enclosure. Still up in the air between using a MiniDSP 2x8 or a combination of passive and active via Crown XTi amps.

 

[CLS]

Dipole Subwoofer

Definitely NOT German.

Thanks a lot

There's a lot more info about the making of them. Brilliant!

 

[natehansen66]

Face - ditching the cardioid and going dipole?

 

[Face]

Face - ditching the cardioid and going dipole?

1 15" lower mid, 1 front facing and 1 rear facing 15" in almost 9cf was a little much for the room. Plus I like to mix things up once in a while.

 

[superlian]

How do you solve the dipole peak around 3-400 Hz in your setup? I asume you crossover around 800-1000 Hz?

 

[Face]

The horn is good down to 380hz, I hope to be ok in that respect. If not, I can play with some denim insulation around the back of the drivers.

 

[superlian]

380 Hz is very very low for a 1,5 in driver?

You say denim insulation, do you make a kind of cardioid pattern then?

 

[Face]

380 Hz is very very low for a 1,5 in driver?

You say denim insulation, do you make a kind of cardioid pattern then?

It will be fine.

Nothing wrong if I end up with a cardioid instead.

 

[gainphile]

From Seas' website:
seas.no/index.php?option=com_content&view=article&id=507:av-fair-in-guangzhou&catid=41&Itemid=194

We had a great time at the AV-Fair in Guangzhou.

The show was surpringsly well visited, and the room in which SEAS was represented, was filled with unique new kits designed by Julien Wang and David Fu from Image Audio.
We were amazed by the sound of the kit equipped with the White Diamond, together with W15CH001 and W26FX001.
This combination probably represent the best tweeter, the best midrange, and the best woofer in the world.

Very clean build. Diamond tweeters

 

[DrDyna]

Those look awesome. I have got to make my way to a trade show at least once in my life and hear some of these types of things.

Someone needs a spanking, though. This would make me insane. (pic)

 

[gainphile]

That's very risky

Some other finding:
www.technologytell.com/hometech/59783/functional-audio-art-a-qa-with-randy-kunin-of-sounds-by-design/

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

 

[gainphile]

voodooless.com/blog/index.php?category=1

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

 

[CLS]

That almost naked Lowther in #1582 had been posted here somewhere years ago.