I offered to design a quality pair of headphones for them based on 3 drivers per ear and a unique electronics, I even built a prototype. Testing showed 1hz to 22,000. And the amp and equalizer (would come with the headphones) made response flat, if you wanted it to be.  I called them Dynamic...

Rosewill RHTS 8206 headset if you are a gamer, only force-feedback headset to go DOWN to 1HRTZ. and the 7.1 software alone is worth the chump change that this 6 speaker toy costs. I am rebuilding them in a 3D printed container.

I have the first I7 cpu, first Beats audio and first USB 3.0 in an laptop. I have tweeked my ENVY 15 laptop so much I cannot let it go. so it has... Windows Ult 7 and win 8 dual bootable it has an I7 q720 win7 4+4 core CPU rated 5.9 of 8 32GB 1333 RAM        rated 7.2 AMD Radeon 5830...