Posted by Wayne Parham on June 12, 2003 at 16:01:37

In Reply to: Pi alignment for a stage monitor posted by Larry Acklin on June 12, 2003 at 09:23:38:

We used to offer a product line using the Beta Series components, and it was called the "Premium Studio" series. The Beta 12 was used in a three π and the Beta 15 was used in a four π. Both of these models used compression horns for HF, but the one π and two π speakers in this line used KSN 1038 piezo tweeters with Beta 8 and Beta 10 speakers, respectively.

Anyway, as for the Beta 12 in a PiAligned cabinet, response is nice and flat with an f3 of 60Hz. The size of such a cabinet is 2.7ft³, tuned to 40Hz with a port of 3.85" diameter and 4.2" length. Deepest flat extension results from a 7.3ft³ cabinet tuned to 44Hz. System f3 is 40Hz for this alignment.