Detebbutt, You pose good questions. But the correct answer is not necessarily so easy as there are numerous things to consider. For example:
o Why only two dedicated circuits/lines? You obviously have more than 2 components and the ideal situation would be to dedicate one component per curcuit/line.
o Is your amplifier a high-current drawing amplifier? If so, then even a low current drawing component like a preamp consuming only 36 watts on that same line as the amplifier may be just enough to choke the amp and strip away the dynamics rendering your system as lifeless.
o Are you aware that your digital components generate a digital noise that is bi-directional? In other words, without proper line conditioning the digital noise generated by these components go back into the wall, all the way back to the service panel, and then induce sonic harm into your preamp and amp even though they may be on different circuits.
Moreover, if you don't have any line-conditioners in your arsenal, then you might want to consider acquiring proper line-conditioning as they will provide far greater improvements than what you witnessed by installing the dedicated circuits/lines. The key word here being 'proper' line conditioning. All too often people seem to think that dedicated circuits/lines eliminate AC noise and grunge. They will help isolate your components from AC noise generated from within the house ie dimmers, microwaves, refrig and air cond. motors, blenders, etc. but dedicated circuits/lines do nothing to purify or condition the noise on the AC lines coming from the power station.
And if you are willing to acquire proper line-conditioning, then there's a whole other series of other questions but I'll save that for another time.
But assuming you have no line-conditioning for now, your best bet may be to install your digital sources (cd player, dac, etc) on another non-dedicated circuit/line, all of your analog front-end components (preamp, turntable, etc) on one dedicated circuit/line, and your amp on the other dedicated circuit/line.
-IMO
o Why only two dedicated circuits/lines? You obviously have more than 2 components and the ideal situation would be to dedicate one component per curcuit/line.
o Is your amplifier a high-current drawing amplifier? If so, then even a low current drawing component like a preamp consuming only 36 watts on that same line as the amplifier may be just enough to choke the amp and strip away the dynamics rendering your system as lifeless.
o Are you aware that your digital components generate a digital noise that is bi-directional? In other words, without proper line conditioning the digital noise generated by these components go back into the wall, all the way back to the service panel, and then induce sonic harm into your preamp and amp even though they may be on different circuits.
Moreover, if you don't have any line-conditioners in your arsenal, then you might want to consider acquiring proper line-conditioning as they will provide far greater improvements than what you witnessed by installing the dedicated circuits/lines. The key word here being 'proper' line conditioning. All too often people seem to think that dedicated circuits/lines eliminate AC noise and grunge. They will help isolate your components from AC noise generated from within the house ie dimmers, microwaves, refrig and air cond. motors, blenders, etc. but dedicated circuits/lines do nothing to purify or condition the noise on the AC lines coming from the power station.
And if you are willing to acquire proper line-conditioning, then there's a whole other series of other questions but I'll save that for another time.
But assuming you have no line-conditioning for now, your best bet may be to install your digital sources (cd player, dac, etc) on another non-dedicated circuit/line, all of your analog front-end components (preamp, turntable, etc) on one dedicated circuit/line, and your amp on the other dedicated circuit/line.
-IMO