Which components to isolate

I think amplifiers draw the most current and the amount varies by demand. I think digital devices are noisier, broadcasting artifacts as they rapidly switch on and off.

I'm basing this opinion on ground noise. A nice way to picture ground current is to view it as the flow of water down a river, it's current. Any stream that enters the river disturbs the current, the stronger the stream, the more disturbance to the current.
When you lay out the ground points in an amplifier, you group the most sensitive sections (input) away from the noisiest sections (power supply/rectifier).

If you're using three dedicated branch circuits from the main panel, you may experience ground loop hum. That's why I don't "electrically" connect my computer to my stereo anymore. Very noisy, hum.

Every component on my audio system is on the same line, absolutely zero hum. But every component is filtered from each other so when I switch on one component, I don't hear a "pop" in the background.

I've found that isolating the cd player or anything didgital on a separate line always made for better, more relaxed sound.

I run four dedicated lines-one for the cd player,-one each for the power amps and a fourth line fot the phono stage, turntable, pre.

I tried the cd player into a Hydra 8 on a dedicated line with the rest of the front end gear, but prefer now to isolate it completely.

I once had a friend whose cd player distorted the picture of a tv used elsewhere in home only when he was playing his cds.

Every component with Symposium roller block HDSE wonderful great bass,stage imaging etc.

The ideal solution is very simple; regardless what type of isolation you are using. 1. Isolate your digital from all else. Then experiment. Try isolating the preamp and then the amp. Most likely you will be able to decide very easily. Have fun. Happy listening.

The ideal solution is very simple; regardless what type of isolation you are using. 1. Isolate your digital from all else. Then experiment. Try isolating the preamp and then the amp. Most likely you will be able to decide very easily. Have fun. Happy listening.