Rather than comparing a cheap passive attenuator to a expensive attenuator, your comparing a 50k pot to a 10k pot, what about the goldpoint-sa2x compared to a cheap 10k pot attenuator like the jbl nanopatch.

Topping dx3 pro .

Anyone know how these compare to there main competitor the edifier s1000db?.

XDUOO X20 , is cheap and has loads of features , measurements here: https://reference-audio-analyzer.pro/en/report/amp/xduoo-x20.php .

The jbls are pretty good http://noaudiophile.com/JBL_LSR305/

The 2.1 in the box systems aren't the best, the budget 1's are just awful, the high end 1's are much better but for the money you can get better performance with separates. speakers...

Why do the golden ear crowd like such pricey badly engineered low fidelity gear like https://www.audiosciencereview.com/forum/index.php?threads/review-and-measurements-of-audio-gd-r2r11-dac-amp.5779/...

Trap

The usb in a dap and pc are built to the same spec otherwise you wouldn't even be able to copy files to the dap. Like you say theres 0 evidence a dap or pc sound different over usb and a cable certainly won't change anything. Both should sound transparent. The dap has the advantage in couple of...

Apparently now to determine whether theres an audible difference between usb cables we need code?. Measuring thd, jitter etc isn't scientific enough, even though the tests are repeatable and 1 was done with nearly £3000 hardware that is even used by the manufacturer's of dacs.

His gone from trying to convince us usb cables make a audiable difference, to no one could possibly know.

I'm only interested in how a usb cable would affect the sound quality we hear ,so we would measure , jitter , thd , signal to noise etc. These measurements have been posted and show no audible differences to prove otherwise you need to post measurements or any objective data rather than just...

102 pages and no objective data showing usb cables having an audible effect. Just the usual rubbish about science doesn't know everything and can't prove anything.

Psychology is the only way to make sense of this site, go and read some of the threads in the main forums there is some very strange cult like behavior going on.