[1] Ultimately, I sent it back. Mine had the infamous coil-whine issue,
where I could hear anything CPU/GPU intensive causing the whine around
6500kHz and 15kHz. It was too much for me, but no one else around could
hear it. If you're interested in one, but worried this might be an issue
for you, try http://onlinetonegenerator.com/ with sawtooth waveforms.