Howdy folks,

The ALTEC 515B woofer has a 14 and 9/16ths bolt hole spacing.

Unlike the early 825 enclosures, ALTEC's later 828 A7 enclosures have a 15 1/8th inch bolt hole spacing.

What is the "most effective and slickest way" to adapt a 515B to a later cabinet, woofer mounting wise???

Surely, some of you have had to figure this out.

Suggestions please? Thanks - very much.


Low Ohms aka Jeff Medwin