Don't think if a 2mS difference is really worth being the sole criteria for picking one over the other, though.

There are other inputs to this problem that should also be considered carefully when choosing a sound device.

Bandwidth, for one. If you are only ever considering streaming in one stereo track at a time, USB can do that. But if you need multitrack multiple channel streaming, FireWire may still represent the better choice due to its Sustained Transfer Rate.

Also consider carefully your use of higher bitrates here, too, if that is of importance to you.


--Mac