Distortion Measurements of a MOSFET Relay for Loudspeaker Protection

Today I compared the cable I made with the China connectors with a set of cables I made using original Neutrik connectors.

China (1m): 70 to 330 ppm
Neutrik (4m): 6ppm

Exact same cable material.
The Neutrik cable is four times as long and has 4mm banana plugs in the middle. I use this set of cables for connecting the loudspeakers.

Unbelievable!
I never ever expected such a difference.
I bought quite a lot of good and cheap stuff from China, but the Chinese Speakon connectors are trash.
Buy cheap, buy twice.
There has never been any issue with the solid state relays.

Sorry for spamming the thread with my stupid stuff. Hope the connector info is helpful though.
 
Photos of the bad China connectors. Look cheap and ugly, but I expected them to work okay. Well, they don’t.
 

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