@maam522a Can you explain why the source components have influence on the chain. If a DAC is reclocking the data stream and there are no errors being transmitted, how could a streamer feeding the DAC influence the sound coming out of the DAC?
Yes, with async USB, it doesn’t carry the audio clock timing information — the DAC serves as the clock master and reclocks the data stream. However, the source can still influence sound indirectly mainly due to:
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Electrical noise coupling into the DAC if the USB is poorly or imperfectly isolated (galvanic isolation quality can vary widely).
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Reclocking does not change tonal characteristics, including note edginess, which are shaped by the streamer’s DSP or filters.
I use an I²S connection, but I have also done comparisons with USB. The distinctive sound traits of my streamers — everSolo T8 (brighter) and Volumio Rivo+ (on the warm side of neutral) — are still carried over to the DAC via USB.
Another experiment I conducted is also interesting: my Laiv Micro DAC allows one to choose the source of timing, either locally from the DAC or via I²S. The Micro DAC is inherently warmer than the T8, yet the T8’s brightness carries through regardless of the timing source.
Lastly, the iFi Zen Stream was my first streamer and is known for its solid galvanic isolation on USB. With all other factors controlled, the T8 sounds significantly brighter than the iFi Zen Stream via USB.

