7 meter length, or $529 for the 1.5m version. The original was recently superseded by the Gemini3.0 which is what I ended up getting. That model was what I'd call "midpriced" in the grand scheme of USB cables ($200-300 depending on length), and was well built if not particularly flashy. Their first Gemini dual USB cable launched way back in 2013, so they've been at this for a while now. While various small boutique brands have offered dual head solutions over the years (Audiocadabra, YFS, and KingRex among others), I chose a more well-known firm for my little experiment: iFi Audio. You can read more on the topic here.ĭoes any of this really matter? I figured it was time to find out for myself. But even in cases where USB doesn't draw any power, there's still potential for that dirty USB power to "contaminate" the incoming audio signal, which again impacts sound quality. I recall being surprised when I first discovered that numerous DACs work this way, even when they have integrated or separate outboard supplies powering the rest of the system. If the USB stage of your DAC draws power over USB, as many of them do, one can imagine the benefits obtained - cleaner power is always a good thing. Users are free to instead use a high-quality supply on the power leg for the cleanest possible power. The result is a "Y" shaped cable offering a total decoupling of potentially dirty USB power from the source device. Rather than a standard single-cable, source-to-DAC link, they split the power and signal connections into completely separate portions - which then combine at the DAC input. Dual head USB cables have always struck me as interesting and fairly clever.
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