Hornresp

[Twellmann]

Originally Posted by NEO Dan

That'll do, but if you are going to have the horn on the floor you can use a flat bottom.
Happy SketchUping

Cool, I suppose as long as the expansion is kept the same, it won't affect the response much, especially with a bass-horn.

[NEO Dan]

You could think of the floor as a mirror of your horn. And speaking of response; depending on what your "requirements" are you might want to have a look at the off axis response. From the SPL screen do a [ctrl]+r.

[David McBean]

Originally Posted by Twellmann

Am I doing this correctly?
I'm guessing the increments are on the axis going through the center of the horn?!

Hi Daniel,

You are correct in your thinking.

Starting with S1 = 49, S2 = 2500 and L12(Exp) = 60 , I get a slightly different result to yours, but nothing to worry about.

Length...Height...Width

0...........70........70
100........67.......142
200........85.......213
300........123.....285
400........189.....357
500........303.....428
600........500.....500

Kind regards,

David

[David McBean]

Originally Posted by Etocynned

David,

I appreciate all your hard work in this product.

Obviously your an audio/computer nut!

Keep it going.

Since you give it away what would be an apropriate donation?

Hi Etocynned,

Thanks for the feedback - knowing that Hornresp is proving to be useful and that my efforts are valued, is all the reward I need :-).

Kind regards,

David

[jaya000]

I want to use this cabinet to match speaker i have.
I want guidance for hornresp input.

I have done but i think i need some guidance specially for ATC.
Please tell me if my hornresp inputs are correct or not?
So i need master's( David McBean) guidance if possible.

[NEO Dan]

ATC looks good, but VTC appears to have an error... VTC should represent the volume of the cone and the cutout in the baffle, looks like an extra 0 in there.

[jaya000]

Thanks Dan,

I calculated the area marked as Vtc.

The calculation is as under

42.07 width till horn starts
10.6 height
57.4 depth of the box.

so it calculated as 42.07 x 10.6 x 57.4 = 25597 + added speaker volume 4403.
So i rounded as 30000.
The triangle volume i adjusted towards round cutout of plywood .

Pl. correct me.

[NEO Dan]

Probably best to define it as a segment to enable Hornresp to more accurately do it's job IMO

[NEO Dan]

The throat chamber is a segment that calculates it's length via the ATC and volume you provide, but as I stated above a more accurately defined model is...

[jaya000]

Originally Posted by NEO Dan

Probably best to define it as a segment to enable Hornresp to more accurately do it's job IMO

Thanks Dan.
Can u explain in details where is my mistake?