FLH box help!

[Aaron___]

Hello all, so I’m currently looking to buy 2 B&Cs along with 2 horns/hlcd to put in a Front Loaded Horn enclosure with the horns ontop of each mid(See pic below for example). How would I move forward doing so in the designing process? I have hornsresp already installed and also would like to model it in sketchup. All in all, I am a noob so besides inputting the T/S parameters, I don’t know how to get the dimensions of the enclosure/sealed section required for the mid in addition to the actual curved part for the mouth area.



Any tips/information is helpful thanks!

[meccalli]

Do you have a schematic view of the box? Showing the rear chamber, dimensions of the compression area, mouth flare.
Brian steele has some excellent resources on folding horns, but with modelling seeing that you've already built it, you'd need those dimensions to input. You'd have to segment the flare, to get the surface area and length, volume of rear chamber and compression chamber, surface area of vent entering the horn.

I can probably rough it out if you can provide that.

[Aaron___]

Do you have a schematic view of the box? Showing the rear chamber, dimensions of the compression area, mouth flare.
Brian steele has some excellent resources on folding horns, but with modelling seeing that you've already built it, you'd need those dimensions to input. You'd have to segment the flare, to get the surface area and length, volume of rear chamber and compression chamber, surface area of vent entering the horn.

I can probably rough it out if you can provide that.

I see, so far this is just a box I’ve seen someone built, (I didn’t build this myself just a screenshot). I don’t have any of the dimensions showing the rear chamber, mouth, surface area etc. All in all I’m trying to make this box from scratch and just confused on how to begin

[meccalli]

Diy audio's site has some great forums you might be able to get some assistance, but if you read the info sheets (help file) in hornresp, it basically outlines everything.

You could start with a mockup of an existing design, put in the parameters as I mentioned and then adjust to suit. A great tool in the recent versions of hornresp is the loudspeaker wizard where you can tweak the throat and chamber and see a realtime FR change.