I just got back from a trip out of town;

The new Tripp-Lite supressor (just arrived Friday) is a 15 amp model, same as what the old Monster 2600 was. The circuit itself is a 20 amp line, and it feeds everything (Plasma, Sub, Amp, and all the rest of the gear).

I would love to have bought a 20 amp Furman Conditioner/supressor, but it's just too much money.

In the past when I looked at how much power was being used with all of my gear on (using the amperage lights on both Monster Power units), and the volume set very high, they never went above 2 amps on either machine. To me, this means I was below 5 amps total draw when the The Plasma, Sub, and Amp where all on together at the same time (the rest of the gear uses a very small amount of power).

While I have inquired an electrician snaking 2 additional independant lines to my gear, I have not done so yet. It would be great to have another 20 amp line feed my sub (leaving the option for another Outlaw EX sub), one for the TV and other for my Amp by itself, The absolute NEED for it has not presented itself.

The Tripp Lite just arrived Friday, and I have not had time to hook it up yet, but I will either later today or tomorrow.

I hooked up the Marantz 7005 and Outlaw 7700 amp directly to the outlet. I turned on just the amp and there is NO noise coming from the speaker. I turned on the 7005 (no cables other than the XLR cables are connected to the 7005) and i get a VERY slight buzz coming from the speaker. From 5 feet away, it cannot be heard.

Now getting ready to connect all cables and plug everything into the new Tripp Lite....

Did you try disconnecting the XLR cables one at a time to see if one is causing the problem?

I will be going thru those tomorrow;

Hooked everything up and its still making the buzz.

I hooked up the Marantz 7005 directly to the outlet and it still buzzes. I checked the outlets and they are grounded properly. Unplugging everything and plugging it all in is tiresome.

I wanna cry.....



If the only connections are the Marantz connected to the amp via XLR, and the speakers to the amp, and both are connected directly to a dedictaed outlet, the buzz is there but subdued.

Later today, I will unhook everything again, and listen for the noise. Then, start making connections one by one to see what, if anything, makes the buzz louder. Im wondering if the new Marantz 7005 is defect.

To make a long story short;

Keeping the XLR cables connected, The more HDMI cables I connect regardless of input or output, the buzz gets louder after 2 cables are connected, and louder after 3. With just 1 connected the buzz is barely noticeable. With nothing connected its VERY quiet (perfect).

Jim at Outlaw gave me directions to do a soft (keeping all info) reset, and a hard reset. Soft didnt work, no to try the hard reset.

You keep the interfaces digital to eliminate noise and it causes a ground loop...Wow

Does this happen even when the sources are plugged into the same power source?

Can you connect a ground wire between the sources to see if the problem goes away?

What brand of HDMI cables are you using?

Sounds to me like you're pretty close to beating this one.

"Does this happen even when the sources are plugged into the same power source?"

Most of the source componenents are plugged into a brand new Tripp Lite supressor. The amp, preamp, DVR, 400 DVD jukebox, 400 CD Jukebox, Oppo, turntable, are plugged into the Tripp Lite. I tried connecting the preamp directly into the wall outlet (bypassing the supressor) and that did not help. The Plasma, sub, PS3, wii and HD DVD player are connected to the Monster Powerbar 1200 at a different outlet, but same 20 amp circuit.

"Can you connect a ground wire between the sources to see if the problem goes away?"

Not sure how I could do this.

"What brand of HDMI cables are you using?"

Most are Monoprice. I have a 35 footer going from the PS3 to the preamp, and another 35 footer going from the preamp to the TV. This has never been an issue. I have a supplied HDMI cable going from the Oppo to the preamp. Again, this has not been an issue in the past with the old 886.

Remember, all was fine when I originally hooked up the Marantz after I replaced the old Onkyo 886. After running for about 20 minutes and doing a run with Audessey on the Marantz, thats when this whole fiasco started. I also opened the electrical panel and made sure all negative, positive and grounds were tight, and they are.

BTW, the hard reset did not work either.

Disconnect the hdmi to the tv since it is common to all of the hdmis. Could be a problem with Marantz. Try the audio with the tv disconnected and unplugged from any points.

Xenon Man, I have disconnected the HDMI to the plasma. If one HDMI cable is connected from 1 source, the buzz is very faint. If the only HDMI cable is connected to the plasma, its very faint. If I add a second (in or out) the buzz increases. If I add a 3rd (in or out) regardless if its input 1-5, the buzz gets louder (annoyingly so).

Is your TV plugged into the same ground source as the Marantz? Also disconnect the cable or satellite too.