Buzzing in Exactpower SP15

There...Buscis took the time to explain the problem I was referring to very well. I did not know exactly how the Exactpower worked. But a buzzing unit or transformer in any piece of gear is almost always a problem with DC offset from our friendly power utility.

If the problem is not bad, sometimes a dedicated line will be enough, since it removes other home appliances from the circuit. But this case must be very bad. (ie, the gear buzzes, so you get a power correcting device, which then buzzes itself.)

Nice to hear that Exactpower is now working on the input side of their devices, after perfecting the output side going to the gear. It is sad that they have to solve the electrical utility's shortcomings also.

Sugarbrie, when you really think about, as unfortunate as it may be, we are ALL having to solve the electrical utilities shortcomings!

It's a vicious little circle, isn't it?

Interesting to hear that others have the same 'problem'. My system is silent except for this....

Interesting topic. I have a Blue Circle MR1200 balanced power line conditioner/distributor and it too has a tendency to buzz/hum audibly. The noise appears at intervals of between 15 to 30 minutes, it starts out low and increases in volume over about 30 to 60 seconds then subsides into silence. I have been told by Blue Circle that the AC from the wall must be particularly dirty and/or it may be due to the on/off cycling of the furnace. They say the noise is indicative of the balanced transformer working hard to clean up the AC.

Are there any devices currently on the market to clean up DC offset, if this is what I'm experiencing in my home? The company that makes the Ah! NoeToeb 4000 CD player also sells a device called an AC Offset Killer, and I wonder if its just misnamed. Any thoughts?

Mghcanuck, The AC offset killer is only good for 10 amps. I really would not know where else to go until Exactpower releases their little correction unit. That will be good for 15 amps.

Although I won't tell you that the Offset Killer won't work. I have never tried it.

Maybe throw up a thread re: DC offset correction?