Considering it's cardboard, and it's not designed right, the thing sounds pretty good and, well, gets about as loud as it would with a normal lense on it! High frequencies are kinda scratchy, prolly from resonating cardboard? The compression driver needs some major padding down, but meh.... Anyway, just thought somebody would find it amusing. My real Pi's are on the way, no worries... =)

Adam

Good for you and more power to you for having the courage to post the photo. Seriously, I'm about ready to throw something together real quick as well; I've got the drivers, crossover components and a working stereo but no materials to make the cabinets. I have a load of apprehension concerning my wife's reaction when she sees the 9 cubic feet each of Theater 4 Pi's sitting in our living room in a few weeks.
Happy Holidays to you!

Garland

This funny little experiment was a bad reminder of the fact that I am not the most fond of these compression drivers... They're pretty good, but I find they just completely bite my ear off. This might be in the implimentation - the last speakers I built had insufficient padding on the tweeter to match with the woofer, resutling in a really bright speaker... Perhaps when I actaully get the proper network in place to tame these beasts, I'll be more happy.

This time of year ain't the greatest for money... Christmas, various bills due... blah *rips hair out*

Adam

You may not want to "bang together" some quick boxes for your Theatre Four Pi's, especially if they aren't pretty. If your wife is at all like mine, once an image gets into her mind there's no changing it... seeing some big coffins in the livingroom might make her resistant to ANY future creations you want to put there, regardless of what they look like. Trust me, I know... I've tried it with some big black subwoofer boxes I built a few years ago. They now reside in my basement home-theatre room, banished forever from the livingroom. I just hope I can make the Premium Stage Four Pi's pretty enough to allow acceptance in the livingroom. She really doesn't know yet at this point what I'm building. I figure some nice cherry veneer with solid cherry or oak end-caps should help. And they won't be 9 cubic feet each either, just approximately 4.5 cubic feet each (and that's still pretty big compared to the Mission 731's they are replacing).

Merry Christmas,
Colin

P.S. - What am I doing participating in a forum like this at 3am? Well, an on-call network analyst never sleeps!!