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ground loop

  1. B

    2000x low hum still

    New to me 2000x. After thorough clean and deox of all switches, I recapped and changed all transistors, diodes and zeners. Found a pesky open on a trace that looked good but wasn’t (I jumper wired it and she started to sing on that left channel finally). It took me a month and guidance from...
  2. B

    Chinese Ear834 preamp trouble

    Hi all, Brandnew to this forum. Ive been a phono listener for years and enthusiastic guitar pedal builder. So I thought let's try and build a tube preamp for my TT. And that's where trouble starts. I've build a Chinese Ear834 clone, but I'm getting 50hz hum when playing. The preamp does...
    • Bulletseever
    • Thread
    • diy ground loop help hum preamp
    • Replies: 16
    • Forum: DIY
  3. T

    Looking for help diagnosing buzz/hum/ground loop in my "HIFI" GUITAR rig!

    I have been experiencing a bad, loud, and variable noise in my electric guitar rig. Here is the details of the rig (I will include as many details as possible since ground loops are tricky): > Electric Guitar (active electric guitar with on-board buffer, 9V battery, and On-Board Effects Loop...
  4. kasbah512

    Selective Ground Loop Hum... HELP Please.

    This is somewhat me circling back to an issue I was having months ago. I've been working on a Marantz 1200 on and off for a long time. I'm convinced its possessed by the previous owner at this point... The issue: -Ground loop-ish hum on the right channel only (next to the transformer)...
    • kasbah512
    • Thread
    • fully restored ground loop help hum marantz marantz 1200
    • Replies: 1
    • Forum: Solid State
  5. V

    Magnavox feedback issue - ground loop? - help!

    Hi Everyone, Hoping I could get some help with an issue that recently started occurring on our older turntable. I am getting a very loud, low feedback noise when I turn on. It does not happen consistently. I've tried reseating and replacing the needle altogether to no avail. Any tips? Here is...
    • vcpd
    • Thread
    • ground loop turntable turntable issues
    • Replies: 0
    • Forum: Turntables
  6. A

    Tube preamp ground loop issue?

    A friend of mine builds tube preamps. After listening to one of the designs at his house, I had to bring one home it sounded fantastic. Clean, clear and dynamic. No issues...yet. I bring the preamplifier home. I proceed to remove my solid state preamp, and in place of that I put the new tube...
  7. vinylvirgin

    Puzzling hum issues with turntable and new audio interface

    I am working on a system which includes a Technics SP-15 turntable with an Audio-Technica ATP-12T tonearm and an Ortofon DJ cartridge. The tonearm is connected to a RANE PS 1 phono stage, which has balanced outputs. This setup was once connected to a computer with an Echo Gina 3G audio...
    • vinylvirgin
    • Thread
    • balanced audio technologies buzzing ground loop hum sound interface
    • Replies: 6
    • Forum: Turntables
  8. N

    Tandberg Solvsuper 10 - Attached Modern Devices

    I recently acquired A very nice condition and well working Tandberg Solvsuper 10. It is a late model with power button and AFC. produces 6-8 watts per channel, with 30 watts peak. I'm running it to RadioShack Minimus 7 pair and a Theater Solutions Sub8S with very good results in a small space...
    • Niner9
    • Thread
    • ground loop headphones noise solvsuper speaker to line level tandberg
    • Replies: 4
    • Forum: Tube Audio
  9. Isaac C.

    Tonearm Help! Left Channel Fine, Right Channel No Sound and Hum

    Hello everyone, I just completed my first tonearm rewire on a Syntec S-220 with KABUSA supeflex and Cardas solder and have run into a bit of a problem. The left channel works fine and sounds fine, however the right channel has no sound and a ground hum. What is weird however, is that if I loosen...
    • Isaac C.
    • Thread
    • ground hum ground loop hub left channel works no sound rewire right channel no sound syntec s 220 tonearm
    • Replies: 23
    • Forum: Turntables
  10. N

    Ground Loop, Phono Amp, Buzz eliminator, weak volume,

    Hi, I had a previous post about complete hum on phono. So I bought a new receiver ( new to me) Everything works except phono. Now I can hear very faint music and a hum. I had my cartridge refurbished by Sound Smith and upgraded from a MMC 5 to an MMC 3. I have tested the arm sockets and the...
  11. plbeard

    Pioneer PL-50 Ground Issue

    I have a Pioneer PL-50 that may have a ground loop; it isn't a simple ground issue. The ground wire takes care of 80% of the normal ground noise, but at 50% volume (with no music) one can hear a lingering 60 cycle buzz and some hum when the TT motor is engaged. Frankly, this isn't objectionable...
    • plbeard
    • Thread
    • ground hum ground issue ground loop pioneer pl
    • Replies: 0
    • Forum: Turntables
  12. M

    Replacement phono cable for Thorens TD125 MKii

    Hi guys. Quick question. I've got a Thorens TD125 MKii is very very good condition. Using the original arm, it's running an Ortofon 2M blue. When I had it serviced, my technician installed female RCS plugs inside, so the RCA cable from the table to the phono preamp can be changed as...
    • Muji
    • Thread
    • ground loop ortofon 2m blue phono connector rca cable thorens 125 mkii
    • Replies: 2
    • Forum: Turntables
  13. 1

    Hitachi HT 354 tonearm grounding problem

    Hey there Audiokarma, first time posting, I've tried searching the previous threads and i can't find a scenario that fits my exact problem. So, here it goes. I bought this turntable off of craigslist and it is in great shape, with what appears to be a brand new ADC XLM improved MK II stylus, for...
    • 12xu92
    • Thread
    • ground issue ground loop hitachi ht-354 humming sound tone arm
    • Replies: 17
    • Forum: Turntables
  14. VinylRescue

    AT-LP120 Ground Loop Buzzing Noise

    I recently had a motor pulsating noise from my AT-LP120 and replaced it with a new motor this week. It was a simple swap with two connectors and two ground wires to re-solder - no biggy right? Now it has a constant ground loop buzzing noise that won't go away. I did the internal grounding...
    • VinylRescue
    • Thread
    • at-lp120 ground loop grounding buzzing sound
    • Replies: 24
    • Forum: Turntables
  15. Cody AOC

    How Do I fix my Ground Loop Problem?

    Hi so I bought two Art EQ355's and they both give me a 60hz hum with my subwoofer and I have connected the eq on different circuits and it still does it I even disconnected all audio inputs to the eq and had the sub connected to the output of the eq and still get a hum I have heard about ground...
    • Cody AOC
    • Thread
    • 60hz 60hz hum amp amplifier audio equalizer ground loop ground loop isolator hum sound
    • Replies: 7
    • Forum: General Audio Discussion
  16. MetalDaze

    Ground Loop Solved, other problems arise?

    As the title states I discovered- and solved- a ground loop issue I didn't notice was there until I upgraded my cables. Went from generic bestbuy brand to Audioquest and immediately had a hum in the speakers. Plugged my amp into the same circuit as everything else and the speakers are whisper...
    • MetalDaze
    • Thread
    • amplifer distortion ground loop noise preamp noise preamp
    • Replies: 5
    • Forum: Solid State
  17. N

    TV appears to be causing ground loop

    Hello, I have a Samsung plasma TV, which is only connected to my APC power strip/conditioner for power and my Marantz NR-1604 AVR via HDMI. The Marantz is connected to an external preamp via preouts, which is going through an Emotiva poweramp. After disconnecting/unplugging each of these...
  18. bberkom

    Fisher 500c Right channel humming, probable ground loop problem?

    I have had a slight hum/buzz in my right channel speaker for some time now when playing my turntable, and I am really wanting to get it sorted. I just bought and set up a fisher 500c to replace a cheap harmon kardon stereo reciever, and the hum has been present in both receivers when using my...
  19. fishookred

    Ground Loop problems

    I was recently trying to digitize a few records of mine when I came across a problem. there was a noticeable "electric" sound in the recording when my computer was turned on. I have everything plugged into a tripp lite iso- which I hoped would solve the problem but didn't. i assume it is being...
  20. S

    sansui 881 background noise - cyclical ticking sound

    so I have a Sansui 881. I decided to recap it earlier this summer and it had been working fine. Over the weekend, I sat down near my speakers while no music was playing and started hearing a persistent ticking/flapping sound. It's not a hum but a cyclical ticking sound. If I had to guess...
  21. bradscoolio

    [FIX] Pro-Ject Debut Carbon DC Hum [FIX]

    Heya Fellas' Ground your pre-amp to the ground lead of the turntables power lead, the end that plugs into the rear of the turntable (I just wrapped a cable around it and forced it in :P), as well as the regular ground post. There must be a resistance between the ground on the power lead and the...
    • bradscoolio
    • Thread
    • carbon dc ground loop hum pro-ject project turntable
    • Replies: 8
    • Forum: Turntables
  22. Reiver

    Odd Grounding issue

    Hi Folks, perhaps someone else out could offer a suggestion as to what might be happening here. The issue is this: when I ground my deck & / or tonearm (the deck and arm have separate ground wires) to anything, be it the back of the amp, a radiator, a screw into the wall whatever. I get a...
    • Reiver
    • Thread
    • ground ground loop technics sl-1500
    • Replies: 17
    • Forum: Turntables
  23. dyche01

    Spooky ground loop

    I seem to have a weird ground loop problem. I have a Dual 1245 running through my Marantz 2238B. I usually plug the TT into one of the power outputs on the back of the receiver. For a long time I had not problem. Now, however, if the unit has been off for a while, when I turn it on again I get a...
    • dyche01
    • Thread
    • dual ground loop marantz reciever
    • Replies: 4
    • Forum: Turntables
  24. c.coyle

    Troubleshooting hum

    Capacitor coupled receiver. Nothing connected to it except two speakers. Hum on all inputs, both channels, regardless of volume [EDIT: Meaning the hum level is not volume dependent]. Flipping the plug makes no difference. Plugging into another outlet on a different circuit makes no...
  25. R

    HDMI Buzz (Ground loop??) when connecting Laptop to Yamaha RX-V375

    Hey guys, so I've got an issue with buzzing from my speakers when I connect my laptop to my receiver via HDMI cable. My set-up is as follows... Outlet --- surge protector --- RX-V375 --- TV, PS4, 5.1 speaker set-up, HDMI cable for laptop The issue is, the buzzing only happens when I plug in my...
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