TonyGee has his 21" sub page up!

[ScottG]

http://www.humblehomemadehifi.com/Serious-Sub.html

Nice!

I would however have liked various non-linear and linear testing.

 

[tinitus]

That funny ... its excactly how I made my woofer boxes a couple of uears ago, and needless to say I think its how it should be done ... I just need the drivers

 

[DIAR]

There's more pictures and discussion on this forum:
http://www.zelfbouwaudio.nl/forum/viewtopic.php?t=2762&postdays=0&postorder=asc&start=0

You can use google to translate the thread.

I wonder why Tony didn't make the enclosures smaller and increse the volume by using stuffing. Maybe because of nonlinearity of air compliance?
I'm building a sealed PD1550 subwoofer at the moment and I intend to use a lot of stuffing to increase the apparent volume by 20% or so (50L >> 60L = Qtc=0.5).

Is he using ice hockey puck and felt as feet? Any other good ideas for subwoofer feet?

Edit: Tone Gee is selling his subwoofer system
http://www.zelfbouwaudio.nl/forum/viewtopic.php?t=6466

 

[jacco vermeulen]

Is he using felt as feet?

Don't know, it doesn't show.