Dual Opposed Sub's

[kevin007]

I have been looking for a dual opposed flat pack for awhile and have been looking at the 2.5 cf flat pack from DIY sound group. But since Erich had posted that flat pack it has never shown in stock. I was wanting to see if I could get some help in designing a dual opposed cabinet using the following driver:

Acoustic Elegance IB12HT 8ohm

Fs: 16.78Hz
Qms: 4.85
Vas: 179.5 L
Cms: .45 mm/N
Mms: 200 g
Rms: 4.35 kg/S
Xmax: 18.5 mm(peak)
Xmech: 25 mm(peak)
Sd: 530 sqcm
Vd: 1.96L (p-p)
Qes: .74
Re: 5.5 ohm
Le: .16 mH
Z: 8 ohm
Bl: 12.49 T/m
Pe: 500W (cont.)
Qts: .64
1WSPL: 82.56 dB
2.83V: 84.19 dB

If this would be a bad choice for a dual opposed box please let me know. The idea is to design a very clean very low distortion sub that I will actually use as a coffee table. I am looking for what I will use as the table top right now. I am counting on the dual opposed to cancel out vibration and just give awesome low distortion low freq and LFE goodness to my new family room setup.

Please let me know what ya al' think.

Thanks in advance for all the help and input!

Kevin

[jsr]

Re: Dual Opposed Sub's

That driver needs a lot space. Don't know how low you want to go. With 7cf sealed, a pair will do F3 of 25Hz and handle 500w. Still hits 105dB at 20Hz but I prefer flat response to my lowest frequency of interest.

[kevin007]

Re: Dual Opposed Sub's

That driver needs a lot space. Don't know how low you want to go. With 7cf sealed, a pair will do F3 of 25Hz and handle 500w. Still hits 105dB at 20Hz but I prefer flat response to my lowest frequency of interest.

Yes I saw that. Perhaps this would work better:

TD12H-8ohm
Fs: 26.7Hz
Qms: 3.72
Vas: 160 L
Cms: 88.6 g
Rms: 4 kg/S
Xmax: 14 mm(peak)
Xmech: 18 mm(peak)
Sd: 530 sqcm
Vd: 1.48L (p-p)
Qes: .25
Re: 6.5 ohm
Le: .3 mH
Z: 8 ohm
Bl: 19.7 T/m
Pe: 300W (cont.)
Qts: .23
1WSPL: 92.9 dB
2.83V: 93.77 dB