Does USB cable length make a diference?

In my experience with USB C - 6 feet is fine but a 10 ft cable apparently starts to weaken the needed signal and you may start to see issues.

A friend makes his own USB cables, which sound very very good.  He experimented with different lengths and we tested them. It does make a difference. The three lengths were 15cm, 50cm and 100cm. The quality improved as the cable length shortened. 

Interesting thread.

I’ve heard that 1 1/2 meters is the best length for a USB cable, but I have never heard what to long is. I’ll be curious to hear the answer.

Not in the least.

Any length cable is a bad cable.....should have bought a streamer dac all in one box with optimized short signal paths.

But, some audiophily dude probably told you separates, separates, separates is the way to go for Xtra credit and respect in respectable circles..

I'm looking at a short usb cable from my Streamer to Dac (1 foot would even