I listen to house, trance, techno and personally I think they all sound good from a ported box. If you go by factory specs., I think it's tuned a little high. I have my HE2's tuned to 26Hz. If you have WinISD I can send you the T/S parameters for you sub, just let me know which HX2 model it is. If you don't have WinISD give me the model and I can figure out something from there for you.
2006 Jeep Liberty
Adire Audio, Cadence, Clarion, MB Quart
Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
*Vb = vol. in cu"
**R = sq.rt. A / Pi (for square/slot port)