New Dedicated Line - Almost No improvement


Hello,

Newbie here and electrical idiot. Just moved to a new to us house in Tampa. Before we moved in I had an electrician put in a dedicated line (has it's own breaker switch) which is 10 gauge and two Furutech GTX-D outlets - Rhodium.

When I hooked up the EMI meter in my old house, which didn't have a dedicated line, the reading was usually around 26 or so IIRC. At the new house the outlets are 89 usually and the dedicated line is usually around 82 - so not much help for the cost of the "project" and pretty noisy.

Also, when the ac /hvac is running the meter reads about 100 points higher (!) for both the regular outlets and the dedicated Furutechs. Not good.

Thoughts? Does the dedicated line need it's own breaker box? 

I'm also considering a line conditioner but wanted to see what could be done here. Thanks.

laynes

@ditusa Great reference, much appreciated.

I ran 3 dedicated lines a few years ago. They are probably 12 g.  I haven't patched the drywall yet as I have had a lingering doubt I did it right.  My electrician did not have heavier wire and he struggled to pass the 12 gage in the walls.  I think I need to call him back out to replace add 2 more lines for each of my mono amps and maybe my tube pre amp.

I have found separating the digital and analog front end gear beneficial.  I have 2 mono amps on the 3rd line.

I use a PS power regenerator on the digital, a Shunyata Denali on the analog and the amps are plugged into a Furutech outlet.

I have been eyeing the PSM156, I was unaware of the trial.  Its hard to know what is snake oil and what works.  I tried an Akiko Corelli and it worked so well I bought 2 more.  I have one on each front end line and the third on the outlet in the PS Audio P10 that the music server uses.  My Linn LP12 has such a noisy power supply I had to take it off the dedicated lines and Shunyata conditioner.  The same for the SMPS for a pair of REF longbows.  The SMPS's totally polluted the PS Audio P10.  They are now polluting the non dedicated house lines.

I have a dozen PS Audio Noise Harvesters.  Those little things actually help.  I have them on the shared outlets in the conditioner and regenerator.

 

If you say you have a dedicated line and are getting noise from the AC then you dont have a true dedicated line.  A true dedicated has to be brought in independent from the street.  At the very least you are sharing a ground on your dedicated line.

@anzaanimalclinic, Your welcome!

I have found separating the digital and analog front end gear beneficial.

I agree 100%! I have four dedicated lines, one for each monoblock amp, one for analog and one for digital. All four dedicated lines use BX/AC cable. I prefer the BX with metal boxes for better shielding. See reference below:

Mike

 

Maybe that BX wire is just keeping the EMI in and allowing it to transfer to the ground?