Is there something wrong with my HP Triple Bass Reflex Subwoofer or my drivers? It doesn't produce sound below 200hz. I can feel the subwoofer is vibrating at the midranges, so it's working. But test tone below 200hz, nothing. I am using a 2 month old dv7-4100, beats special edition, and noticed the bass audio from the built in speakers was seriously lacking -- I didn't really notice until I got a new pair of headphones. I ran some audio tone test sites and found out the built in laptop speakers do not generate any sound below 200 Hz. In the IDT audio drivers speaker config there is only configuration for 2 speaker stereo system, no 2.1 speaker system (which includes subwoofer). I'm miffed, because on HP advertising copy claims "HP Triple Bass Reflex Subwoofer amplifiers put out 12W total while supporting a full range of treble and bass frequencies." Clearly I am not getting "full range" frequencies. I now remember I had the same audio experience with a prior dv7 unit which I returned because of other, unrelated PSU problems.