In response to "Kawai_man" and specifically the comment "The only thing I dont like about the MS is that it uses USB power." While true that all versions of our Streamer line don't use an external power supply, calling them USB powered is very inaccurate. Let me attempt to explain. All of our Streamers use a highly sophisticated and completely isolated power supply design. The USB power is regenerated (not just filtered and regulated) via a completely isolated power stage. There is no coupling mechanism between the computer (host) and the Streamer (device) side of the products. In fact, there is isolation of both the power and the data to the DAC stage. This isolation results in complete break in the conduction path. Adding a battery (of for that matter, any other approach) would not result in any improvement as the device (Streamer) already provides this capability.
To go a step further, even if one did use a battery, but not our approach, the results would be considerably inferior as there would still be a connection between the computer and the audio sides of the product (as is the case in all other approaches). If one is not inclined to simply accept the comment of a manufacturer, try this simple test. Put a DVM or similar on the device and try to measure any conduction between the USB connector and the analog output. We claim an isolation of greater then 20 Mega Ohm, which is true. What isn't as obvious is how much greater than 20M this isolation is. The fact is it is for all practical terms, infinite. This is a significant performance advantage and one that is unique to our products.
In conclusion, the closing statement by "Kwai_man", specifically "Im sure this would really increase the sound quality" would be true for any other USB DAC, but not for one of our Streamers.
High Resolution Technologies, LLC