Ok, so I've been crawling around on the floor, wiggling, reconnecting, changing cables and swearing
With just the phone plugged in to the amp, it's dead silent. The biggest cause of noise seem to be the dac, or it's power supply. When everything else is plugged in (dacs ic's still connected to preamp) and I pull the wallwart for the dac, almost all noise disappear. This kinda sucks since my listening is probably 75% through that thing.
Any ideas..? Been trying to read up some on grounding but don't really know what to make of it.