Samps

That's sort of what I was thinking. With a 15hz tune the big excursion wouldn't happen until the 12hz range and how much of that even exists. The inuke is probably down a good bit of power in that range anyhow. I'd be surprised if it could do 1k for longer than a second at 12hz.

If using a bridged inuke 3000 for a single DS115-4 in a ported cab, will a HPF be necessary? If the driver can only be bottomed by a K20 I don't see why a HPF is needed. The sims show overexcursion but it seems like in real world the driver would be safe. This might let a little spl through below tune that would have otherwise been filtered out.

Just need some IKEA fasteners and you're set. Do you need to put the whole inside together first, then inset it into the bottom? Looks like the horizontal panels and all of those channels would prevent you from assembling from the bottom up. Looking forward to the results. Don't you also have an Othorn to compare to?

Awesome! Will this have higher pressure in the throat than the Othorn? Seems like that space between the drivers could smash stuff at full power.

Sounds like you're stuck with Dayton. They're likely the only company that you can count on to have the same driver available for years to come. You could use an SI or Sundown but the driver might be discontinued a year from now. Alpine would work if you can shrink to 15s, or 4 12s. 4 sws 12s would be cheap and have a lot of stroke. And the options of dual coils would give any ohm load you needed. FS is high though.

How about those two 18n862s you have? First cab would be really cheap.

Luke has 8 sealed 21s and they still barely keep up with two othorns. Maybe if you put the sealed subs nearfield they will stand a chance. 0-30hz shouldn't be localizable at all. If they're 8-12 feet closer to you, that makes up a lot of lost spl to distance. Awesome stuff you have anyhow. Isn't there a processor available that can handle all of the work instead of those behringers?

Interesting design. Looks like you put a lot of work into this. I've stared at the graphics and I just can't imagine how you will be able to build a sturdy hatch recess and still have enough room to fit the driver in. It appears the driver is nearly touching 3 sides. So the hatch opening will need to be pretty close to the full height of the cab. That wouldn't leave any material for the hatch to mount to. And reaching the rear mounting screws looks very difficult. Hopefully I'm just not seeing how this all goes together. At first I thought maybe you were building the cab with the drivers installed. If it works like you think it will, I might just build one.

Ok, well that explains it. I didn't realize the ipals were limited to that much stroke. These RF drivers are impressive.

How does a single RF hang with the dual ipal? I was surprised those two systems were nearly equal. Or would the ipals benefit from more power?

Will the ports be blocked off on the inside or outside? If they're blocked on the outside, does the area inside the port get added to the cab volume?

Crazy room you got there Scott. I can't imagine how much time it would take to get all that wired up and calibrated. There must be a 1000 connections and a mile of wire. How did you find time to eat, sleep, and work? Bet it sounds great. Nice work!

What condition are the BMS18n862 in? Did they do any gigs?

Any chance of testing the orbit shifter LFU? It's 225lbs but it should put up some good numbers.