Just a guy Posted February 20, 2021 Report Share Posted February 20, 2021 So, I'm looking to put 2 fosgate p3d4-15 subs in the space that my rear seats used to occupy. I am not proficient in win isd, have tried using it to no avail. From what I have found around the net is that these subs do very well in around a 3ft^ sealed enclosure. My question is, if I put the two subs in the same chamber, would I just double the box size to 6ft^? I plan on running these off a single amp at 1000-1200 watts at 1ohm. Any input would be greatly appreciated. T/S parameters are attached (far right) Link to comment Share on other sites More sharing options...
Dafaseles Posted February 20, 2021 Report Share Posted February 20, 2021 Yeah, you would just double the size for double the subs. You have to account for the subwoofer displacement as well... 3 cubic ft sealed per sub sounds like a hell of a lot though..... I'm not a box designer, but I had 4 12's (JL W6's) sealed in about 1 cube gross per sub on 4 1000 watt amps. I know that doesn't really help you much, just figured I'd chime in 2011 Chevy Silverado under construction My build log here. Check it out! Link to comment Share on other sites More sharing options...
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