I have USB interface from ART (dual tube pre) that uses class compliant driver but I'm using the audio driver from Ploytec to convert it into high quality ASIO driver. Works excellent. I've bought an USB mic Shure MV5 it's class compliant too and it's 24bit (and 16bit, the ART is 16bit only), it also has it's own headphone output. I'm trying to connect both so I can either record simultaneously from two devices or playback audio through both at the same time, but it's not working. Sinc