[sdiy] chassis-mount screw terminal or alternative

Oakley Sound oakleysound at btinternet.com
Fri May 15 11:04:28 CEST 2020


 > I'm kind of leaning towards 4pin speakon, though they do seem a tad 
large.

Ultimately, the amount of current running through your connector will 
determine the type of connector. You should always aim to have a low as 
resistance as possible when connecting an external regulated PSU to the 
case. If you are getting a voltage drop of over 10mV in your connector 
it's probably too much. Excess voltage drops, particularly on the 0V 
line, will lead to crosstalk between modules or circuit blocks within 
modules.

And getting the resistance down to give you smaller voltage drops will 
usually mean big connectors. Just because a connector says it can handle 
1A doesn't mean it should be used even for 500mA if the voltage drop is 
too big for your application.

And what's an acceptable amount of voltage drop will be determined by 
the types of modules you have, how much noise and crosstalk can be 
tolerated, cost, and the amount of physical space you have.

Tony

www.oakleysound.com



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