Quote Originally Posted by Altec Best View Post
OG the 411 was developed for sealed enclosures.. Wouldn't that be a better option for that woofer ?
That's where we see the bulk of em for sure.

But(there's always gotta be a "but").............. the ole fella's spot on. It was quite a while back IIRC. GM worked out a large displacement ported box for the 411.

Altec also used it in a VOT "type" ported enclosure in the 9861.