jo3533

Responses from jo3533

Help With 60Hz Hum PLEASE
So it has been a couple weeks and everything is running great!Thank you all for your help again! 
Help With 60Hz Hum PLEASE
So, summing this up quick. Heeellllll NO! (Im not taking my AMP out again for some time, I hope)I spoke with the local stereo shop and the sales man there told me they had a similar experience with Sherborne AMP.  Sherborne told them to do the sam... 
Help With 60Hz Hum PLEASE
My thought comes down to two words. Faraday Cage.I believe what I created was a EMF cage around both the Adcom and Marants. That is why the noise comes back when I only connect to the chassis of the Adcom.I could be completely wrong, but its what ... 
Help With 60Hz Hum PLEASE
Darn Cats......Why are they curious again? So, I was extremely hesitant to pull my rack out of my wall again to try this, but curiosity got the best of me also. However, I had a hunch what was going to happen, and that turned out to be correct.Gro... 
Help With 60Hz Hum PLEASE
GOOD EVENING,I have been busy all day, but I stayed up late last night putting everything together. Here is what I found works....not 100% sure I understand why yet, but I think I understand what has happened.jea48, The link you provided to www.ra... 
Help With 60Hz Hum PLEASE
NEWS. Dead silence....AT LAST!I will post what I did to fix the problem later. Right now I am trying to put my system back together and confirm it still works after its all back in the rack.THANKS SO MUCHEspecially to jea48 and almarg. You pointed... 
Help With 60Hz Hum PLEASE
jea48,I bought the ADCOM used. One channel was not working, and it would not turn on at all when first purchased. The tech was not very forthcoming on what exactly he replace. He did mention the bridge rectifier however he never confirmed if he re... 
Help With 60Hz Hum PLEASE
I think my post about XLR cables not being plugged in and there being noise was an error.CONFIRMED With the amp connected but not the per-amp there is no noise. Checked it twice tonight.I am going to sleep on this tonight and figure out what I am ... 
Help With 60Hz Hum PLEASE
Here is a link to some photos of the following testing, and the schematics of the ADCOM 7805. https://www.dropbox.com/sh/1rdxqg82pw3ecq9/AAATCANt3v5Vc3kMZ0taSa1na?dl=0As you can see in the photos I pulled the units out of the rack and set them up ... 
Help With 60Hz Hum PLEASE
Jea48, With just the XLR cables hooked up to the amp and absolutely nothing else. There is the humm. Even while using the same outlet or separate outlets, and even with the same configuration as tested with the Koss cd player. These test have been... 
Help With 60Hz Hum PLEASE
jea48,I was and still am using XLR IC's. I only ran RCA interconnects for the above test, and it still does not answer my initial question. Even now with my ADCOM on the floor and longer XLR cables with plenty of room between the two components th... 
Help With 60Hz Hum PLEASE
Ok, so I hooked up an old Koss CD player to my amp. fired up the CD player and then the amp. One note about this unit is that it only has a two prong plug much like my Marantz.The noise was GREATLY reduced. I could still hear it, but is was very f... 
Help With 60Hz Hum PLEASE
OK.....so I never made it all of the way to the testing sequence as stated above. I started to set up for the test, but when I get the 100lb. amp out of the equipment rack and set it on the floor. I decided to try a couple of things before I remov... 
Help With 60Hz Hum PLEASE
Jea48,My XLR cables are very short. 1 foot only. I ordered some loser cables and when they come in I will be doing this test and let you know the results.Thanks! 
Help With 60Hz Hum PLEASE
Ok, so I was mistaken. The noise is just as bad on the center channel. I took apart my XLR cables today and looked for the dreaded "pin 1" problem and I thought I had found the issue. But after clipping the shielding wire same result.This is drivi...