Midrange sub-chamber

Hello:
I'm confused with the recomended volume of internal sealed sub-chamber for the JBL 2105H midrange, because in the JBL literatures recomend two diferent volumes: 1.5 lts and 6 lts. for you as it is the suitable recomended volume? :blink:

Here the links:
http://www.lansingheritage.org/image...pro/page19.jpg
http://www.jblpro.com/pages/pub/obsolete/2105h.pdf

Thank you for your help! :)

80 cubic inches is fine.

*****

The Consumer LE5H and the Pro 2105H are identical except for their foilcals. Some 2105H's were also painted grey instead of black. All LE5H's were painted black.

Thank you very much Mr. Giskard by its perfect answer. :applaud: