It,s been a few years since I generated a convolution filter (new speaker orientation in room) and I find I am not even sure I have the basic equipment hookup correct. Tell me if this will work. I am feeding my laptop (loaded with REW) with a UMIK-1 microphone (USB). From there it is a USB out to my Benchmark DAC3 input, with output of Benchmark going to amps to speakers. Am I correct that I do not need any other cables etc.?