Axiom Home Page Forums General Discussion Technical Questions Who can solve this problem?

Randy,
You may have tried this already but are your 60's still kicking around why dont yo0u try them. also could you move the amp somewhere else (away from the closet) and test that way just to help further isolate the prob.
Jake

Old speakers are already gone. The amp is freaking heavy.

I talked to Emotiva and I'm going to try a few things to isolate the slight "hum" and "static" issues. One thing is to take a wire and attach it to the Denon chassis and Amp chassis, if the sound goes away it is most likely a ground loop issue, just need to figure it out. The static I'm not sure, I may try a cheater plug to eliminate the round prong to see what happens. He also recommended me checking all the wiring to make sure the ground terminals are in tact.

My understanding now is that the neutral and ground route back to the box and are connected, ultimately to the 6ft ground rod, if I have one of those even.

Very frustrating...

Both sound like good things to try (cheater plug and grouding Emotiva chassis to the Dennon chassis).

Did you get the static whith the amp NOT connected to the Dennon?

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As jakewash mentioned, and my buddy hear at work, I could try one-at-a time turning other breakers off to see when the static goes away. It just is funny that when I turne the closet light on, it goes away. It is almost like by turning on the closet light, it is absorbing the static before it gets to the amp.

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I would say as was stated earlier the light is acting like a battery/capacitor and is absorbing or grounding the extra energy that your system isn't able to deal with right now. Why? Don't really know, but I'm sure you will find out.

Or you could use an IR or X10 based switch on the closet light and set your remote to turn it on and off at the same time the system gets turned on/off. Might be easier and less frustrating.

I would hope that the noise is not that bad. The X10 signal is pretty strong, but that's also why I said he could go IR on the switch, not just X10.

I think I just solved your problem, maybe its distortion in the speaker wires try these. They claim to control distortion.

Well tonight did a little troubleshooting. The cheater plug did nothing, still static in the tweeters when the closet light switch was off. When the light is on I can still hear a hint of what I'm describing as pink noise in the tweeters and hum in the woofers. But you have to get your ear very very close to hear it. I still hear a very low hummmmm in my amp, which appears to get a little louder when I turn the Denon on or have it in standby mode, weird.

The next thing I tried was taking a long contractor grade extension cord 150ft, and ran it across the basement, upstairs, to the other end of the house, and plugged it into an outlet in the bedroom. Then I ran back downstairs, turned on the amp, still hear the slight humming/buzzing in the amp, and believe it or not, STILL hear static in the tweeters when the AV closet light is OFF.

I also unplugged the amp, and rehooked the left/right speaker wires to my Denon, turned on the Denon and also hear a little pink noise from the speakers, but don't hear the static with the closet light off. I also noticed the Denon gives off a slight hum sound if you get close enough to listen.

I still think when the light is ON for whatever reason, wherever the static is coming from, it is getting absorbed (if that is the word) by the light circuit and not reaching the amp, but when off, the amp is amplifying the static.

I also heard a buzzing in one of my breakers (whirlpool tub/heater) and first thought I was going to have to call the electric company to tighten down the main inlet leads again as your not supposed to hear any buzzing or humming (from arcing). But I think it is just a breaker buzzing.

This sucks.

Randy:
I don't know squat about electricity, so I haven't studied the thread. But have you tried replacing the switch for the hell of it?

Randy,

I am curious if the noise still happens if you cart your Emotiva amp to a friends house. If it does, then I think you can blame the amp (not that you want your amp to be defective, but at least you can determine if it is your house wiring or not, and save you more experimentation time).

I know you don't want to haul M80s to someone else's house. Can you hook up just one QS8 or the VP150 and hear the static? This way you have a smaller speaker to travel with.