I've got a Black, and it works great. Provides way more power than is needed for the TFZ Series 5 that I got off of MD, but has better sound than my phone's internal amp which can power those just fine as well.
Overall, I really like it's sound output at a fairly reasonable cost. Haven't tried the Reds, but that can provide more power, and might even be better otherwise, but I didn't need that much power output.
Absolutely, they sell these and the cables at work, with their superior gold stained steel hdmi cables that the maires use to magically upconvert your picture quality to 4k on any tv, or whatever they're claiming this week
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Agreed, this item has excellent reviews and doesn't require external power. Best value. Please vote!!!