d9/tdx box help

[BLD 25 10+ year member]

Hey, i have a friend who is getting two d9's, and i was wondering about the box design from the website. Does it look ok?

http://www.diamondaudio.com/PDF/current/D9/D9WooferTechSheet.pdf

http://www.diamondaudio.com/PDF/current/WiringEnclosures/Dual12VentedEnclosure.pdf

http://www.diamondaudio.com/PDF/current/WiringEnclosures/Single12VentedEnclosure.pdf

Click to read more...

 

[NeedDirections 10+ year member]

I had a single TDX 12" in 2.5 cubes at 35 hz...sounded excellent.

 

[BLD 25 10+ year member]

thanks. The box specs from the website almost look barely over a cube ported to 38hz. That just doesn't seem right.

I was also considering a dual chambered box that was about 3.8 net ported to 35, and the port would be 3.5 inches wide. It is only 16" long, though.

Anyone?