AC Power


I have a relatively nice system, but have done nothing with my AC power, with the exception of upgraded PC’s and a cheap iFi plug in power conditioner. My question is multi fold… do I need to do something, and if so what? Dedicated line (15A or 20?)? Quality power conditioner? Both? Which one first? How do you tell?

My system is a combination of HT & 2 channel & I tend to use both simultaneously as I like to watch sports while listening to music.
My amp is (I think) a relatively low draw… Moon 330A, Rythmik sub, BHK pre, Aurender, Qutest w/Sbooster, R11’s. No high power amps are in my future & never listen above 75db. I do currently plug my amp directly into the wall. All my wall warts are gone. For my HT, add a 75” Sony TV, Marantz 7015 AVR & a Klipsch sub (although at zero volume the AVR & sub should not come into play).

I am considering buying the Furman IT-Reference 15i or 20i first as they are well reviewed & are priced very well on Amazon ($1,400 / $1,900). Before I pull the trigger, should I go dedicated power & at what amperage (my nephew, an EE & audiophile thinks I am drawing no more than 5 amps) as that will dictate the Furman model?

Interesting, my nephew thinks neither are worth the investment. His statement: “Do you have appliances on the circuit now? What kind of interference can they inject?...voltage drops would come from current draws...which trip breakers.
Not steady 60hz a good power supply handles. So it all comes back to was the power supply engineer dropped on his head as a child.”

”Personally I think it’s something audio people do when they have run out of gear to buy.”

Any thoughts or recommendations would be appreciated. Thanks!

 

signaforce

Showing 6 responses by carlsbad2

Your nephew is clueless about electricity but don’t feel bad, most people are.

The disturbances in your 60 cycle sine wave come from outside the home, mostly from industrial loads. We have non-cyclic loads and supplies now that morph the sine wave. A dedicated line will help keep in-house interference off and more importantly, ensure adequate current is delivered to your amp. but will do nothing about the quality of the power.

The Furman you are looking at does nothing to fix the degraded sine wave. Only a regenerator can do that. PS Audio is the rolls Royce there.

I don’t think you have tube gear but most "conditioners" can’t regulate voltage either. a tube amp thrives with the voltage that it was designed to. Once again, a regenerator will allow you to set the voltage. My voltage is 120.0 +/- .1 V.

Now one last thing. Not all amps and components need clean power. It gets rectified eventually for most purposes and some amps and components work fine with dirty power. So results will vary. But tube amps will always work better with regulated voltage.

Jerry

@signaforce Sorry about that.  I am an Engineering Manager in the electric power industry with 40+ years experience.  I have degrees in engineering and physics from well respected universities including the University of Chicago (physics, 1980).  Engineers implement physics, physicists actually understand it.  So unfortunately I have to stand by my comments.  I work with engineers daily who do not understand electricity to the level you need to address the somewhat subtle challenges we face in audio.  Tell your nephew to hook up his oscilloscope to the power coming into the house and see if his comments remain the same.

Your rejection of a regenerator for size concerns tells me you're a form-over-function guy.  Looks are more important than how it sounds.  I'm all about sound and I'll find a way to implement the better sounding option, so we speak different languages.

Finally, it seems clear you had made up your mind before you started this thread.  I had a few more technical suggestions but I'll not waste your time.

I wish you the best of luck.

Jerry

@wturkey "clueless" about a technical field isn't  an insult.  My guess is his nephew is also clueless about nuclear physics, quantum computing, and brain surgery.  I am clueless when it comes to 2 of the 3.   As Mark Twain said, "We are all ignorant, just about different things."

In looking for other voltage reglating "conditioners" I looked at the Furman P-2400 and the specs say that it regulates voltage to 120V +/- 5V.  

5 volts is not real regulation in my opinion.  is the voltage regulation realy that bad?

Jerry

Just the fact concering a piece of equipment being mentioned. If you just want suger, you’re at the wrong place.

And frankly, I asked people to defend them because I think they have to be better than that.  Maybe even a typo.

Jerry

Didn't notice you bought it.  So what are your expectations for voltage regulation when you get it?