Shunyata Power Conditioner advice

Grant:

Will using two dedicated lines invite hum through a feedback loop? I recall reading an old white paper by Nelson Pass that discouraged using more than one AC line.

I'm waiting for delivery of McIntosh C2300 preamp to feed a McIntosh MC352 amp, using your balanced interconnects. Perhaps the balancing act will diminish hum?

Thanks, Sheldan

I've just introduced another dedicated line to my system for the digital gear.

That's three dedicated lines, and no hum issues.
If anything, less noise.

If someone claims that adding dedicated lines created hum or noise, then perhaps it's a bad electrical connection at the panel,the lines are not all on the same side or phase of the panel or that some noise inducing appliance such as the funace AC or refrigerator share close proximity with one or all of the dedicated lines at the panel.

Have an electrician come over and see if he can balance out the amount of draw each half of the panel has.

In my case, the AC is on the other side of my panel, and so are some other things,even so, my sound is better when I turn off the AC breakers in the fall.

Dedicated lines in conjunction with upgraded power cords and conditioning( I use Shunyata, but have no affiliation, so don't call me a shill)have made quite the improvement in my system, and when you can make improvements to what you've already invested in makes more sense than to jump on the merry go round looking for the perfect sound.

The perfect sound might already be in your system but you just haven't heard it yet.

Give your gear good power and you'll be quite pleasantly surprised.

Lacee:

I'll check this out:

"If someone claims that adding dedicated lines created hum or noise, then perhaps it's a bad electrical connection at the panel,the lines are not all on the same side or phase of the panel or that some noise inducing appliance such as the funace AC or refrigerator share close proximity with one or all of the dedicated lines at the panel.

Have an electrician come over and see if he can balance out the amount of draw each half of the panel has."

Since I did all wiring in our house, including panel connections, I'm the one to blame if my two dedicated lines are out of phase!

Hello Tarjin, please feel free to e-mail us with questions. I don't look in here often enough due to work and travel to be consistent in reply.

The primary cause of hum related to the use of dedicated lines is a difference in potential to ground caused by running differing lengths of wire from panel to outlet. If your furthest outlet requires a 25 foot run of wire from the panel, you need to use this length for any additional dedicated lines even if they are much closer to your AC panel. Make sure the gauge and breaker are rated the same and if possible on the same electrical phase. This will minimize the likelihood of ground-loop related hum.

Best regards,

Grant
Shunyata Research

I recently got (2) Shunyata Hydra 4. It is my understanding that each set of ports are isolated from each other. I have the following items connected. To the first unit, first set of ports are the PSU's from two HDD and the second set have the Dish Network satellite box and my HDTV. On the second Hydra one set of ports are connected to my Mac Mini and my DAC. The second set of ports are connected to my amp and my REL sub.

Does this connection scheme seem reasonable or would you connect with another combination and why?