Well now that I have finally finished my 21" sub in the front of the room I really want to do something with the back of the room. Just to bring you all up to speed, I originally had 4 Infinity 1262's in ported (iClOps) boxes being powered by an iNuke 3000 DSP. I had them set up with two in the front of my room and two in the back of my room. I then acquired a 21" driver and another NU3000 DSP, so I built a massive box for that which is in the front of my room now. That moved all 4 of the infinity's to the back of the room, which looks like this
That is clearly not gonna fly so I need to do something. Originally I was planning on building one big ass box that would match the parameters of the 4 boxes I have now. I had LTD02 come up with something since he had designed the original boxes that worked so well. What I found when I first finished the 21" box was that it was GREAT at very low frequency, but rolled off pretty quick over 50hz. What I ended up doing was EQing the front 21 to cover the low end, and the four 12s to carry it out to 100hz. This was the final result with all subs running.
Knowing that the 12's are not really needed to dig way down, has got me thinking about options. First off I want as much room behind the bar as possible. The current boxes are 16" deep, plus a couple inches for the connectors. I would like to get them 12" or less from the wall. That is doable with a ported box, but makes it very big otherwise. Seems like if I go sealed I would be able to make the box much smaller. I am just not 100% if that would be the best way to go.
I was also wondering if I should look at new subs instead. Some things to keep in mind about possible replacements.
1. There are only 2 connections in the back of the room, and no way to add more.
2. I would like to keep my NU3000DSP to power whatever I end up since I already have it.
3. Max dimensions to work with are 90" long, 41" tall, 12" deep (21.24 cubic feet). If I absolutely had to I can push those somewhat, but that is ideal for max.
So do I build the ported box that LTD02 came up with that matches the performance of the current boxes?
Do I build these subs into a sealed box?
Do I get new drivers and build a box for them?
Lets hear what all you maniacs think!