To begin...an outlet is an outlet. All are required to be 15 amp rated and all they do is pass power. You can't hear any difference from one brand of outlet to another. Just make sure the integrity of the outlet is good and not old and fatigued.
Is it better to have multiple outlets on different circuits than just one? Really depends on how many amps your main power amp will draw during critical demands or sustained demands. If you are not listening at ridiculous spl's with inefficient speakers then I doubt that this is making any significant difference.
One thing to keep in mind is the psychoacoustic difference between listening to music with a video source engaged and without. Music is always more involving without any video content or visual distraction.
The power consumption of your other sources (video) will be negligible.
Other considerations are the quality of your AC coming into your home. Power demands go up during evening hours. Secondly, you can check your main service panel for power issues by using a multimeter. Check both sides of your panel...they should be within 1-2 Volts of each other. If not you could have an issue with your neutral wire or something else.
Is it better to have multiple outlets on different circuits than just one? Really depends on how many amps your main power amp will draw during critical demands or sustained demands. If you are not listening at ridiculous spl's with inefficient speakers then I doubt that this is making any significant difference.
One thing to keep in mind is the psychoacoustic difference between listening to music with a video source engaged and without. Music is always more involving without any video content or visual distraction.
The power consumption of your other sources (video) will be negligible.
Other considerations are the quality of your AC coming into your home. Power demands go up during evening hours. Secondly, you can check your main service panel for power issues by using a multimeter. Check both sides of your panel...they should be within 1-2 Volts of each other. If not you could have an issue with your neutral wire or something else.