Making speaker cabinets.

[Steenamaroo]

Hey all,
I have two boards 28" x 15" each with three speakers mounted in them.
A 12", 5" and tweeter each.

These were once the faces of two speakers but the boxes got damaged and were removed before I got a hold of them.

They seem quite nice and I'm thinking of re boxing them tomorrow.
I have some half inch ply left over from a flooring job so i figured I may as well use it for something.
Nothing super scientific but i don't wanna do it really badly either.

I'm looking for suggestions on what size to make these for optimal performance.
Sadly i don't know the power ratings or model numbers of the speakers except to say that the 12"s are wharfedale.

Other simple stuff too like, do you leave them empty or pad them with dense cloth. Do you isolate the speakers from eachother?
How? Wooden divides inside or some kind of pipe over the tweeter?
Do you port speakers like this?

IDK, tell me what you know please.

I can post a photo in the morning if it helps.
Thanks in advance.

 

[mshilarious]

You're only guessing without the T-S parameters, so drop them in a sealed box maybe 10" deep and the height of the board, stuffed with loose fill. The speakers don't need to be isolated; the box will be arbritrarily large to the tweeter (which might be sealed anyway) and the mid. You don't care because you crossover the mid above its Fs anyway. That is, porting the mid for extra low-mid response in a three-way design would be a somewhat silly thing to do.

Once you have large box built then you measure it and see if you got close to ideal (no peak) response for a sealed box. If you have a big peak, your box is too small.

More here:

Speaker Response Curves

 

[Steenamaroo]

Hey msh.

Thanks for the info.

I'd googled and googled for these drivers for a while now with nothing, and today i just found this.

320825722242 (ebay item number)

More info here

Sorry to waste your time dude.