Just tried with another, thicker (and by the looks, higher quality) USB cable.
This time, interruptions occurred only 3-4 times, but they're still present nevertheless.
I have a dropout issue if I use ethernet instead of wifi on my laptop. Windows 8.1. I have not found any solution other than just using wifi while playing music. Just thought I would mention it because it can be hard to find the problem sometimes.
Download USBlyzer and see whats going with the USB buses in your comp. See if you can plug into one thats not being used.
I've been playing BF4 for the last 1 hour and so far no problems.
I switched from Etron USB 3.0 port to Intel USB 2.0 port. Probably the culprit was ****ty Etron controller.
I also tried USBlyzer and it didn't show any errors.
Yes, that would be the problem. USB 3.0 ports on some computers work fine with dacs, others not so much.
The problem is that most USB 3.0 ports on older mobos are realized through the 3rd party chips with their own drivers and quirks.
I'd never plug in any kind of sensitive, realtime processing equipment like DAC into that. CF card reader maybe (for the bandwidth alone).
So who's gonna blind fold you and be flipping the switch?
I didn't need anyone to do that.
The Fiio box works amazingly well. If you flip the switch quickly between amps, there is no audible break in the music. It's an instantaneous change between them.
The results have me rethinking everything.
I can't see it affecting anything at all. It's a very simple design, it literally just switches between the four inputs. You can use it in reverse as well, to switch between up to four different headphones between one amplifier.
Be careful with multi switches. Sometimes, they can introduce just minor deterioration. Other times, they allow devices to "see" each other, which also has undesired effects.