Enclosure for 3 Memphis Mojo 15's

[valin 10+ year member]

I have 13 cubic feet to work with, in total. I was planning on running 3 Memphis Mojo 15's.....two of them inverted, and running the 3 off of two Memphis MC-2000d Mojo amplifiers. The issue is this.......I would like to tune the box down low to 30-33 Hz, but how can you do this without sacrificing a rediculous amount of volume? With 13 cubic feet, it is understood that I would need just over 200 cu. in. of port size, but then to tune it down that low, the port has to be so long that it takes up 1/2 the box. Is there any way to tune it down low, without sacrificing output? What do you guys recommend?

Click to read more...

 

[valin 10+ year member]

bump...

I'm guessing having only 13 cubes I'll have to tune it higher in order to maintain enough airspace...

 

[Goldtaz1 10+ year member]

Surely to goodness 9-10 cubes net would be quite sufficient for (3) Mojo 15's. I know your response is going to be "Well the manufacturer recommends....". I know what manufacturers recommend, but I happen to believe with the power you have on hand 9-10 cubes net is more than enough and you should be able to tune low without problems. Keep in mind that a woofer only knows what it feels, it's not going to jump up and down and say "hey I'm in the wrong air space". It might sound differently being in something smaller than 4 cubes per sub, but I truly believe the difference would be negligible, not to mention bigger (boxes) is not always better. Best of luck with your build.