im kinda of a noob, i have a xxx 18 and my box is tuned to 34hz...and peaks at 36-37ish... and i want it to peak more around 45-50ish i would need a different enclosure correct?
also i have a 2000 md3d from us amps....is that enough power for the xxx or should i get a larger one maybe 3000??
If you want you box to peak higher, then either shorten the port or reduce the volume of the box. You can reduce internal box volume by simply putting in layers of wood on the inside.
2000w is fine for that sub but 3000w could be better.