[JulioCat2]

Can i use the inputs in the red circle in the attached image, to supply 5 Volts from a linear power supply to the Singxer F-1, or how can i do it??

Thanks for you help

 

[winders]

Wouldn't it be easier to use the +5 VBUS line in a custom USB cable instead?

 

[JulioCat2]

Wouldn't it be easier to use the +5 VBUS line in a custom USB cable instead?

Maybe but i'm thinking about the best alternative to produce best sound