I was wondering about the term EBS alignment. I have (mis)understood that the point of reflex tuning is to tune the enclosure at the Fs of the driver, to limit the cone excursion at resonance.

I thought that an EBS alignment essentially said "let the driver look out for itself, I'm tuning this thing as low as I possibly can".

You indicated an EBS alignment for the 2240 was 8-10 ft^3 at 30-35 Hz. Since the Fs of the 2240 is nominally 30Hz this would seem to be "normal" reflex tuning.

Can you help me understand this terminology better?

Thanks