Hi,
I built the 4pi Pro many years back. Best speaker I ever heard and had. Now they serve as front speakers in a serious home theatre setup.
From the FAQ I gather that I need to build another pi4 (eminence drivers) for the center-speaker to make this sound right. The speaker will live behind the screen which is about about 3.5 metres wide. If this is correct, plans please I fear over the years I lost the previous email (15 years..). Can I do away with the porting for the center? would make the building process easier?
Subwoofers needed as well, I gather 2 "small" 3pi subs are better than once 12pi sub for this purpose? the requirements are 20Hz properly audible, i.e earth shattering when required.