PC for Brsyton 4B SST

Tvad - ground adapter plugs are sold so that you can connect a device requiring a safety ground connection to an outlet that does not have a 3rd ground pin, but HAS A GROUNDED OUTLET BOX. It is not designed to allow a device requiring a safety ground to be used without such a ground.

A grounded outlet box is one where the box itself is grounded. If properly grounded, the wallplate screw will be a path to earth.

That is why the adapter plug has a metallic clip or pigtail to connect to the grounded wallplate screw. It is permissible to use this approach, thus the adapter plugs are legal to sell.

Using the adapter plug without connecting to ground is "cheating," which is why it's called a "cheater" plug. Using it to defeat the ground is against NEC. NEC has the force of law in pretty much every locale in the US, so it's illegal to use a ground adapter as a "cheater" plug.

Also, installing new outlets without proper grounding, as you suggest, is illegal, incredibly dangerous, and stupid. If you had a problem because of the installation of an illegal electrical system, your homeowner's insurance could legally refuse to pay any claim.

Rex, you are correct. I was not clear in that the outlet boxes I was
describing are grounded, therefore allowing the use of the wall plate
screw.

My suggestion of cheater plugs was offered as an alternative, and had
been suggested to me by other Audiogon members when I had a similar
issue with ground loop hum. Frankly, the cheater plug never helped in
my rig, but it has helped others.

I retract all my aforementioned advice regarding the use of
"cheater" plugs, and suggest those interested in grounding
issues consult a local, licensed, electrical professional for further
information.

Rex, do you have any suggestions for solving Freakygreek's buzzing
problem?

Many ground loops are the result of dc on the cable tv line or dss. If you have video hooked thru your audio system and have a bad buzz going, remove the co-ax cable from the input of the cable box or dss receiver..If the bad buzz vacates, then the problem is on the line..Also if you have several pieces of audio hooked to 2 or 3 ac outlets you may be encountering different ground potentials which will give you an offset and result in hum or a bad buzz.Tom

Thanks everyone for trying to help me.

Here's is an update to my situation. I went today to a local stereo shop and explained my problem. He suggested that I purchase a Audiophile APS unit. The 700 watt version retailed at 2700.00 Cad a bit out of my price range for now.

Just to set things straight I've tried disconnecting my cable entirely and the buzz still remains. The video is hooked up to my Monster Power Bar and from there to my TV.

All of my components except my amp are hooked to my power bar. The outlet I'm using is a switched one by that I mean a wall switch cuts all power. I've tried tackling this problem before by unplugging all house app and switching outlets the buzz still remains.

I thought some fresh blood this time around might give me some fresh insights.

Many Thanks

Freaky, at the risk of being too opinionated, I'm going to say the $2700
Audiophile APS suggestion borders on ridiculous because you're talking
about a power conditioner with a price that is out of proportion to the
rest of your system, and may or may not be effective. Be CERTAIN you
can audition something like this at home in your own system before you
buy.

You said before the buzz occurs when you connect the receiver, and
goes away when you disconnect the receiver. This suggests the receiver
is the problem.

Will your local stereo shop allow you to do a home audition of another
receiver or preamp? Are you running 2 channel, or is your receiver also
providing multi-channel sound?

Here's another idea. With the system on, take a wire and touch one end
to a metal part of your receiver's chassis (or screw...bare not painted
metal...you get the idea), and touch the other end to the metal chassis
or screw of the Bryston. Does the buzz go away? Don't touch the IEC
outlets...just some exposed metal on the individual chassis. You're
testing to see if this provides a ground for an ungrounded component.
Sometimes Bryston has a ground screw somewhere on the back panel
that you can use for this. Perhaps the NAD does too.

Disclaimer: I am a hobbyist, not a professional. Consult a seasoned
professional for more complete information.

I really dislike lawsuits.