Audiophool A/C Filter?

[Lonely Raven]

It's almost a silly question, but what's the chances of this being snake oil, and probably just a couple caps and resistors in a wall wart?

http://www.partsconnexion.com/catalog/ac_products.html

http://www.ultrasystem.com/usfeaturedpr ... royer.html

http://www.enjoythemusic.com/magazine/e ... troyer.htm

I have a bunch of noise on the line in my "new" house, and it's painfull when I play guitar. If I play quietly, I hear more noise than guitar. I'm afraid to think of what it will be like when I finally get my Home Theater setup and I'm running 100 watts through 7 channels....

I don't want to get my hopes up, simply because my problem is so bad here...and I'm honestly not sure how to resolve it.

[moj067]

Why not just get a power supply w/ built-in line conditioning. I've got a couple of old Adcom ACE-515's that have served for many years. I'm sure Furman has an offering for just as much and offers surge protection as well.

[Tubetwang]

Snake oil...you get the same mileage by pluging a 5 Henry choke in the ac outlet.

I tried the choke with my he-man-hi-fi-tube-rig and it made no difference in sound.

May not hear the difference, but...you would have to try it with your own set up...

I would try a line conditioner...get a demo loan from the shop on the condition that you can return it free of charge if you're not satisfied.

But first i would look at your own electricity line and make sure that it's legit...
earth grounded...with no household appliances connected in the same circuit...

A dedicated line right from the box is nice...

Twang

[Noel Grassy]

I've had some sucess with those AC inlets with built-in filtering and a fuse.
For $10 USD the Schurter 10A IEC inlet is pretty handy. Granted these are
for RFI but that's usuall the source of my problems. YMMV

[CaseyJones]

Easy fix... plug yer stuff into a dedicated "hi-fi" outlet. Run it straight to the cellar, ground that one straight to the water main down there. Don't plug anything but audio into that one.

Stick a 'scope on the line, look for noise or switching transients. If any of that crap shows up on what should be nice clean power then a power conditioner is in your future.

We use twist lock Hubbell connectors in the studio. Technical power is isolated from utility power. Utility power is what you plug the coffee maker in to and the vacuum cleaner into in the morning. Yeah we have a couple three prong outlets that connect to technical power, if I catch you pluggin' yer vacuum cleaner into my technical power you'll get a swift kick in yer ass! Your spikes on my gear makes me grumpy. Grumpier than usual...

If you're a total psycho do it the way the Big Boys do it. Tear out all the sheetrock, tear up the floor. Line everything with lead sheet. Yeah right, Rohs-approved lead sheet. Run a nice solid ground strap from your lead sheathing down to a dedicated ground. A ground stake right into the water table works kick-ass. When you put the sheetrock back use 5/8" firecode, two layers. Break all of the joints, that means the joints don't line up with the layer underneath.

The next step is to isolate your space from mechanical vibration but we're way OTT at this point. Ideally the floor is a foot of concrete and there's nuthin' but dirt under it. Maybe 2" of rigid foam sheet, that's even better than right on top of dirt.