There are many ways that noise can be added to the power lines. Large industrial motors, generators on the system, etc. However, when in your home, it can come from florescent lighting, refrigerator motors, microwaves, etc. You can actually scope the power line and see noise on it. A very good piece of equipment will have inherent internal power supply filtering that will remove the vast majority of this noise when converting to DC. Some have large coils in the power supply circuitry also that help with this. Your friendly neighborhood power company will acutally test your home system (if you complain and ask) and see if noise is present, or low voltage, or flickering (yes voltage flickering). Here is how you fix this. 1) remove all bad lighting,2) get a decent power conditioner for your low level electrics to plug into as I mentioned previously. I wouldn't swap around circuitry in the home. This is really a non-issue to me. If one is careful, run dedicated lines (with separate and unshared neutrals and ground conductors), proper interconnect cabling helps. I'm the first house off the power transformer for my area, so I have great voltage. Four dedicated lines for my system (which includes separate ground and neutrals for each dedicated line), CD, TT, Tuner, Pre-amp, Phono stage, DAC, electronic crossover all plugged into a very nice power conditioner and that is plugged into a dedicated circuit. Two stereo amps each plugged into its own dedicated circuit. Result, dead quiet.No ground loop, no refrigerator noise, no microwave noise, no lighting noise, no flickering, no voltage sagging, just music. However, I do believe it is important to not share neutrals or grounds on lines for the music system.
Dedicated Power Lines
Been thinking about running dedicated Romex circuits from my circuit breaker box for my rig. No . . . I decline paying for specialty wire, Romex will do. The question is how many discreet lines and the amp capability of each line. I'm still trying to figure out how to do the installation in accordance with Code, without tearing my finished basement apart. For that, I'll consult a licensed electrician.
My rig consists of the following gear: (1) self powered sub that is rated at 1500 "Class D" watts; 4500 watts on a surge; (2) ARC tube CDP; (3) ARC tube line stage; (4) ARC tube power amp rated at 120 wpc - supposedly draws 700-800 watts when driven hard; (5) ARC tube phono pre; and VPI TT. I have a large screen plasma TV and a DVD player. I think that stuff can run off the house circuits.
Right now, everything I just listed is sucking juice off the same line. I gotta believe no good is coming from that set-up. Funny story -- one day my kid was playing Rosetta. I think it's a band that plays music, or at least that what my kid says. Tons of bass. When the band kicked into "low gear," first the basement lights dimmed, then the circuit breaker tripped.
Oh, my house is tied into the utility lines with a 100 amp service. If I change that out, that's the next project. But not right now. Other than Rosetta, no other power delivery problems noted.
Thanks
My rig consists of the following gear: (1) self powered sub that is rated at 1500 "Class D" watts; 4500 watts on a surge; (2) ARC tube CDP; (3) ARC tube line stage; (4) ARC tube power amp rated at 120 wpc - supposedly draws 700-800 watts when driven hard; (5) ARC tube phono pre; and VPI TT. I have a large screen plasma TV and a DVD player. I think that stuff can run off the house circuits.
Right now, everything I just listed is sucking juice off the same line. I gotta believe no good is coming from that set-up. Funny story -- one day my kid was playing Rosetta. I think it's a band that plays music, or at least that what my kid says. Tons of bass. When the band kicked into "low gear," first the basement lights dimmed, then the circuit breaker tripped.
Oh, my house is tied into the utility lines with a 100 amp service. If I change that out, that's the next project. But not right now. Other than Rosetta, no other power delivery problems noted.
Thanks
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- 46 posts total
- 46 posts total