Tuning

[Daemon]

Just bought 2 vibe blackdeath 15s which should run nicely at about a 28hz tuned  4.5 ft box and that's why we buy these subs right.if you want more volume at 35 to 50 hz then get a few 12 inch pro woofers adds a few more cubic ft but they are inexpensive and efficient.think of your system as a church pipe organ all those pipe represent all frequencies evenly . I would not ruin all the potential of what these low freq drivers can offer as a compromise to get louder at a higher range .after the low mid bass is achieved with some pro 12s you still need a few 8s or 6.5s and horn tweets and even a few 1 inch domes on top of that .now your entire range is covered .