Not grainy at all, and quite clear:
Clearly bifilar, clearly only one end is wired. Seems odd right? Just like square wheels seem odd.
Sorry about my word choice, it may seem like it leaves room for uncertainty, but not really.
Solder joints seem good though...
Youve gone from “it seems” to being certain from a partial picture, while referencing a photo from a 3rd party store site thats not even on the manufacturer’s website? The photo cant even be found on the manufacturers website, which Ive shared. Ooof.
I’m always interested about new digital amps. Looking past the marketing jargon, the “Tesla” coils “seem” to be counter-wound double inverted coil inductors which is referenced in some journals to have been used in noise reduction. Theres not enough info here to assess if its BS or not. If it were a new application for some niche noise reduction technique used elsewhere, I dont know if it works, but Im sure Im not going to find out if it has merit from the curmudgeons on here.
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