cheers,
george

I honestly think that you're OK, and certainly this is true with the overall cabinet dimensions. You'll find that if you go one direction - towards overdamped - the bottom cutoff frequency strats to rise rapidly after a certain point. But until you reach that point, response doesn't hurt much by being a bit overdamped. And going the other direction, you'll reach a point where peaking starts to rise fast. Before that, you aren't going to have a bad response curve and can barely tell the difference and then suddenly, there's nothing you can do to remove the peak. So those two points - one towards the overdamped and the other towards underdamped - are what I'm talking about when I say "in tolerance." The window between these two events is pretty wide for PiAlign'ed cabinets. It's a very conservative alignment.

So that 1/4" is almost nothing, so as long as its braced sufficiently, you're in business. And I'll check the response curve for the port and double-check my assumption on the cabinet volume too.

I'll let you know by tomorrow afternoon.

If anything, I'd say it would even sound better. Larger cabinet, similar tuning... More deep bass.

Adam

I can transport the drivers, if you would like to test the JBL 2226 in your new cabinets at Lima, Midwest Audiofest. I dont know if the hole and bolt up is a match or not.

Bill

So don't make any changes unless the port is too near the rear of the cabinet. As long as you've got a couple inches clearance, you'll have the same response with the dimensions you gave as with those specified in the plans.

cheers,

george