I've been contemplating building a new sub. I'm happy with my current ported MJ-18M, but I want more on the bottom end. My current sub is tuned to 24Hz and it falls off pretty quickly below that with the high pass set at 20Hz or thereabouts to keep cone excursion in check.
I'm thinking about a IXL-18.2.2 with 2 PR from DIY cable in an 8^3 enclosure. 8^3 is about as big as I can possibly go with cabinet size. To get the low bass I'm looking for dual PR's are the only way I'm going to be able to do it. I could build another ported sub but the port length, box size, and first resonant frequency start becoming issues when I model it out. Couple things I'm not real sure on is how much mass can you get away with adding to each PR? Also in Win ISD does the mass number on the PR tab apply to each PR or both combined?
The IXL-18.2.2 is in stock at Mach 5 but their PR's are not. DIY Cable has their 18 inch PR in stock that's why I'm looking at them. I've already got the amp and EQ so I'm all set there. All told it will cost about $600 to make it happen.
I've attached some screens comparing my current ported MJ-18M compared to the IXL-18.2.2 with dual PR. Should I build it or are the gains down low not worth the bother?
I'm thinking about a IXL-18.2.2 with 2 PR from DIY cable in an 8^3 enclosure. 8^3 is about as big as I can possibly go with cabinet size. To get the low bass I'm looking for dual PR's are the only way I'm going to be able to do it. I could build another ported sub but the port length, box size, and first resonant frequency start becoming issues when I model it out. Couple things I'm not real sure on is how much mass can you get away with adding to each PR? Also in Win ISD does the mass number on the PR tab apply to each PR or both combined?
The IXL-18.2.2 is in stock at Mach 5 but their PR's are not. DIY Cable has their 18 inch PR in stock that's why I'm looking at them. I've already got the amp and EQ so I'm all set there. All told it will cost about $600 to make it happen.
I've attached some screens comparing my current ported MJ-18M compared to the IXL-18.2.2 with dual PR. Should I build it or are the gains down low not worth the bother?



