Pictorial of an exponential/radial horn being made for me by a friend...

[Cal Weldon]

Gadzooks, them's coming along fine!

How long before we get to listen to them?

 

[Bas Horneman]

How long before we get to listen to them?

The way Kees is building they'll be done in a jiffy. But I still need to buy the drivers. Since I don't have the cash I need to buy with my credit card. The nearest place I found that accepts credit cards won't answer my emails!!!

So the bottleneck is getting the drivers...

The next "problem" will be the filter I'm not sure if I should go traditional...or use something like the Behringer digital crossover and tri-amp. Or tri-amp and use the MOX boards I still have ..but have not used yet.

 

[Bas Horneman]

The golden rule of DIY:

BassAwdyO, I guess Kees Soeters's stuff qualifies for your golden rule

 

[Bas Horneman]

The full monty so far

http://basaudio.net/diyhosting/keessoeters/index.html

 

[Cal Weldon]

I think those are definitely worth tri amping. Far too purdy to just use passives.

One question: If you don't have the drivers, how do you know how far to recess the area that the surround of the woofer is going to travel into on your baffle? Did you just use Xmax specs and make it a bit more than that?

 

[Bas Horneman]

Hi Cal,

Kees Soeters is the guy building them for me. I haven't even seen them yet. I guess the way you describe it is how he calculates it.

Regards,
Bas

 

[BassAwdyO]

BassAwdyO, I guess Kees Soeters's stuff qualifies for your golden rule

I'll say! Where did you find Kees anyways? And how much does this guy cost?!?

 

[Bas Horneman]

I'll say! Where did you find Kees anyways? And how much does this guy cost?!?

I found him drunk under a bridge...searching for the meaning of life

Nah..I met him through Evelien who is a friend of my wife and I.

Kees has very reasonable rates. But the horn building I believe is a one off thing. Just takes too much of his time.

Check out
http://www.techgraphix.nl
which is Kees's site.

 

[Bas Horneman]

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[Bas Horneman]

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[Bas Horneman]

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[tade]

wowww, awesome!

 

[DocLorren]

Hi Bas,

Kees really knows how to make it all fit seamlessly. This quite some work! Any progress on the plans of the drivers and/or tri-amping? You got a lot of of us guys glued to this thread so its an obligation not to dissappoint us!

 

[Bas Horneman]

Any progress on the plans of the drivers and/or tri-amping?

Hi Doc,

Yes. Kees wants the
BM12W for Bass
SD-450N for the high
and SD-740 for the mids

All P-Audio.

Tri-Amping.. will be a mix of amps that I have available. Am building the ZEN V9, a Pushpull 2A3 and a PP 6N6P a la James Doddington.

Crossover probably a modified Behringer digital crossover.

 

[Bas Horneman]

Check out the gallery...

http://www.basaudio.net/diyhosting/keessoeters/slides/DSCN9904.html

 

[Cal Weldon]

Those are truly beautiful Bas. Absolutely stunning. All except for the guy in the last pic. He's not beautiful. Is that the famous Mr. Kees?

 

[Bas Horneman]

Is that the famous Mr. Kees?

Yep that is him basking in the beautiful glow of the setting sun on a lovely spring day here in the Netherlands.

 

[Cal Weldon]

Well like my mentor Red Green always said, if they don't find you handsome they should at least find you handy.

 

[Bas Horneman]

Concrete has been poured

http://basaudio.net/diyhosting/keessoeters/index3.html

And for those of you wondering how Kees took Cal's comments.....well...ehm...I won't be suprised if Cal is somewhere inbetween the concrete

 

[Cal Weldon]

Yes but he was kind enough to leave my typing hands free.

I like the screws to hold the concrete idea.

I'm not sure if you have mentioned, but what kind of concrete did you use?