Hi there!

I have designed a pcb for a passive audio split but I'm wondering if this will work out or if it will give issues. Gerber file is included. I would solder an XLR connector to the pcb, and it'd split to two patch points right besides the connector going through over inner layer copper lines (so far so good I would assume) but I also have them go all the way to the side. The copper lines are close to eachother because it wouldn't fit otherwise (or I have to use 6 layers but then they're still close to eachother). I would think using aluminium as a base material instead of FR4 would be beneficial to block RF interference. Would love if someone could have a look and tell me if I'm making a big mistake, for example by putting the copper lines too close to each other.

Thanks!
Chris

 

Update: noticed the alu base can only have a single layer so back to regular FR4. Still have no clue if this design is workable or if it impacts the audio in a negative way

 

could you post pictures of each layer instead of a Gerber file?