I just noticed a sysctl on this machine I've not seen before, and noticed it is changeable, and was wondering if any one has any opinions on tweaking it and the like. hw.snd.pcm0.ac97rate: 48000 /dev/sndstat pcm0: <nVidia nForce2> at io 0xb400, 0xb800 irq 20 bufsz 16384 kld snd_ich (1p/1r/6v channels duplex default)