ebartlet
Well-known member
I have finished building the Zen headphone amp from the headwize site. Each channel uses a single Hexfet powered from an active current source (another hexfet). Anyway, I am having trouble finding the cause of an intermittent low level static noise (like a turning a pot with DC on it, but much quieter) , which usually appears on either channel, not both at the same time. I am using sheilded cable from input to pot and pot to pcb. All of the grounds come together at one point. I really like the sound of this amp, but the noise is driving me nuts!
