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 15" Brahma running off Cadence A7hc, Clarion hu, MB Quart 6.5s and 5.25s running off old school Punch 800a4
146+db @ 38hz with 1200w and a single 15"
Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
*Vb = vol. in cu"
**R = sq.rt. A / Pi (for square/slot port)