Sallis post was interesting. Less is More. CE standards are a pain in the butt. You did the audio world a favor ! I bet the designers didn't want them either but it was the only way to pass emissions..
Dwight
Digital produces nearly zero emissions compared to other technology. Switching devices that operate in the radio spectrum are the bigger polluters since they have considerably higher power. That's why yyou see SMPS supplies and class D making such a big effort to stop emission of noise. Where as DAC's often have almost nothing but the proper needed controls at the circuit level to keep interaction bbetween IC's stable and consistent. We're talking a couple volts and miliamps. SMPS devices power amps that are class D that can be through 1500-2500 watts around, transmitting off of tens of feet of cable or back into power from wall. Also manufactures of these devices often are compliant, but only thus far for profit. Strangely you don't see ferrite clamps or rings, but rather inductors of sound wire on a core that has a mixture including ferrous. The most common place to see ferrite clamps is on the cords to computer monitors for data, at least the old sub15 connection. I've seen them on USB cables, but that trend may have ended. I think they're on cords for large copy/printing things too.
