Yeah, Jacques; I've suggested a few times in the past that disconnecting the speakers while leaving all settings the same(e.g., with a crossover to the sub of 80Hz or lower)and then listening to bass-heavy music on the sub alone will cure any illusions that subs are "musical", "fast", "tight", etc. Any such qualities of bass instruments(and also being able to localize them)are due to upper harmonics played by the speakers, not the sub.

-----------------------------------

Enjoy the music, not the equipment.