8 subs and 2 tubes

[Dr1v3n]

Wiring the bottom driver alone revealed some bass. Wiring the bottom clamshell in parallel cancelled all the bass. Wiring the bottom 2 out of phase/in parallel was appreciably better. This Audiosource Amp 3 can handle the current. More tests

 

[straight8s]

Any weird noises...seal-less.

 

[Dr1v3n]

Any weird noises...seal-less.

Yes, I heard what I thought was cone breakup when the bottom clamshell was powered even at low volumes.

Right now I just have the bottom driver powered.

It's very nice to finally hear bass notes on my system. But it's not enough.

Today I'll rig up the second sub using the already assembled clamshell pictured earlier and power just the bottom driver so at least there will be 2 subs with similar active config's.

 

[Dr1v3n]

So I'm done with clamshell design. Next topic will be 4 tubes and 8 subs.
Going to the local lumber yard to get these heavy duty 10" PVC tubes cut in half. Hopefully

 

[straight8s]

If not find a machine shop with a big bandsaw no doubt you can find one that will cut them for a cost per cut.

 

[planet10]

We used a big tablesaw with a big blade and a sliding table (?) to cut the 12” PVC tube i have. It took 2 passes and a bit of sanding.

dave

 

[Dr1v3n]

We used a big tablesaw with a big blade and a sliding table (?) to cut the 12” PVC tube i have. It took 2 passes and a bit of sanding.

dave

Dave, you didn't experience any kickback on the tablesaw?

 

[planet10]

Chris was running the tablesaw and knows what he is doing. I have heard stories thou.

dave