plug the usb-c/optical/coaxial cable from your music source into the modius. for phone, likely usb-c. rca cable from modius rca output to valhalla rca input. not sure if they come with rca cables. usually they do. plug headphones into valhalla front output. done. if iphone with lightning port, might need cable for digital output.
plug the usb-c/optical/coaxial cable from your music source into the modius. for phone, likely usb-c. rca cable from modius rca output to valhalla rca input. not sure if they come with rca cables. usually they do. plug headphones into valhalla front output. done. if iphone with lightning port, might need cable for digital output.