DIY LE8 Cab

[John W]

I am in the process of building some cabinets for an older pair of LE8 drivers. They are 16 ohm, with Lans-a-loy surrounds, and whizzer cones.
Other than the data on this site for the LE8T, I haven't found any recommendations for cabinet dimensions on this particular driver. In my typical ready - fire - aim fashion, I have a box mostly done with an internal volume of 1.25 ft3. The recommended port for the LE8T is 6 sq in with a 7.5 in tunnel.
Would this also be a good port size for my drivers?

[boputnam]

Hey, John W. - welcome... :wave:

From your post, you seem the type - so why not go to LinearTeam's website and try their Freeware WinISD (http://www.linearteam.dk/default.aspx?pageid=winisd) and model them, yourself. The Thiele-Small specs for the LE8T are within the working database.

Give it a try... :yes:

Oh, and I'm sure LinearTeam would appreciate a donation, but I seem to get hammered everytime I suggest anything like that... :duck:

[John W]

That is a good option, but I don’t have the equipment yet to accurately measure the t/s parameters for these drivers. Are there any appreciable differences between the LE8T and the older LE8 drivers with the whizzer cones?

[boputnam]

Originally posted by John W
...I don’t have the equipment yet to accurately measure the t/s parameters for these drivers. Sorry - I must've confused. The Thiele-Small parameters ARE INCLUDED in the WinISD database - you needn't measure anything to model your cabinet.

[John W]

The WinISD program suggested the same value that the JBL document recommended. I went with a 6 sq in throat by 7.5 inches.
I finished the speakers, they sound wonderful. On some tracks I find them a bit forward in the mid range. It could just be that they are different than what I am used to. They are surprisingly sensitive.
Here are a couple pictures. The cabinets are cherry veneer over mdf, with a cherry edging rounded to reduce refraction.

[Robh3606]

Those a beautiful!! Nice Job

Rob:)

[Ski]

And quick too.

[Paul Joppa]

I've never seen any data for the older LE8, but between your pictures and the old catalogs, it seems they may be quite different.

I'll start a new thread on re-coning the LE8T.