I am just found this site, readed Wayne's white paper
a tried PiAlign soft. Well, my question is a newbie q:
is this Pi-alignement destinated only to a big JBL drivers
or can also be used for a more conventional drivers ?

Is there some rules (based on T/S) determining which spkr
is good and which isn't ? Can also Pi-horn be used with a small
full-range drivers such as RS 40-1354?

Thanks in advance,

O'Tor

As for usage, it's a general pupose alignment for full range speakers. Other alignments are generally better suited for subwoofers and other specialized applications. PiAligned speakers tend to be fairly small and slightly overdamped. This alignment works very well for woofers used in full range loudspeakers.

Thank you for your immediate response!

I will start asap. I would also ask you for some
technical details about Pi 40-1354 construction:

Entering T/S params to your PiAlign Soft:
Vad=0.459 cu ft, Qd = 2.174, and Frd = 56Hz
the PiAlign for BR cab propose:
Encl Vol = 0,211, Ideal Fr = 45.65, Ideal Q=2.21.

Next there is a Encl Fr=54.28 and Encl Q=2.16,
and Port Len = 0.82 and Port Area = 0.31

My question is: are those the final values
OR
I have to do iterate Len/Area combinations to
approach proposed ideal values ?

Thanks in advance,

O’tor