Reamp - Jensen Transformer Equivilant on Mouser

[facon]

Hi,
IMHO your wiring is correct ! If the noise continues then I would actually suspect the laptop ground, as PRR said. Maybe you could try to put an alligator clip between your case and the mains earth, see if there's any improvement. Then you can install a 3 prong mains socket with only the earth connectedf to the chassis, phase and neutral unused. And then if you'rez using the reamp with an earthed ground source, use the ground lift switch or, better, disconnect the mains connector.
Best regards.
Eric

Great. Thanks for looking over the wiring! It looks like noise issues like this with laptops are not uncommon. I'll follow your advice to see if it helps. It looks like I'll just have to hang in there until I get my standalone unit.