ground loop

  1. E

    Avoiding Ground Loop Balanced To Unbalanced

    My sub has 60hz hum, which seems to be caused by a ground loop (only manifests when connecting via RCA cable to the receiver). The sub is powered by a different outlet (no way to work around this), so a ground loop would make sense. There is quite a bit of discussion on the forum to avoid...
  2. J

    Earthing sparks? (ft. Rega Schiit iFi miniDSP & Topping)

    First time poster :). I ran into a ground hum problem (very loud) in the following chain: Rega P1 TT ----> Schiit Mani/iFi Zen Phono (doesn't matter which one) ----> miniDSP 2x4 HD (rca in--rca out) ---->Topping PA 5 x 2* ----> DIY LXmini speakers. (*The RCA to TRS cables for interfacing the...
  3. P

    How to make XLR input on a power amplifier using Lundahl 1588

    Hi everybody, I need help making an XLR input on a regular single end amplifier. Since regular cable adapters wouldn't work, I decided using a transformer and already got the general purpose Lundahl 1588. I saw that they use them in some high end amplifiers. The reason I need XLR input is for...
  4. dominikz

    Measurements and comparison of isolation transformers and DI boxes

    Almost a year ago I posted this short IMD comparison of various transformers in a iso box review by @amirm, and promised that I'll try to follow up with a more detailed post. This will be it. :) A few different types of devices will be measured and compared, here's a list of units under test...
  5. V

    Is this a ground loop or equipment issue?

    I just purchased a KRK S8.4 subwoofer to use with my existing Audioengine A5+ speakers, connected to my PC via a USB DAC. The introduction of the subwoofer is causing noise issues and I'd appreciate some help in making sense of the current situation. All of my components are connected to a...
  6. ThatM1key

    Can ethernet cables cause ground loops?

    I always wondered does ethernet cables cause ground loops? I was told all my life for the most part that ethernet cables can carry surges and ground loops but I never really encountered this. Our internet for the most part is stringed across various network switches and routers via different...
  7. B

    Ground loop issues from computer audio

    Hello, I am looking for advice on how to solve ground loop issues on my home computer setup. The main thing is that I want to be able to quickly switch between a desktop computer and a laptop for the audio source. Here is a schematic of the setup : I am considering replacing the power strip...
  8. S

    Ground Loop / USB output noise

    I'm hearing ground noise from my PC source. It's a custom tower PC, which through a Apple Type-C to 3.5 mm, connects to a Schiit Asgard 3 which powers my HE-4XX headphones. Noise is source-agnostic, connecting to mobile devices removes the noise completely. While PC headphone out, or USB ports...
  9. J

    Ground loop via USB broken but high pitch noise remains. *Please advise*

    Audio: PC - USB - E30 - L30 Power: Dedicated 20A to office closet - cyber power Sinewave 1500 UPS - PC/Accessories + separate Isobar strip for stack/monitors/sub *No noise present via Headphones or IEMS Purchased Adam T5V powered monitors and their sub. Hiss is minimal even with the gain all...
  10. Vict0r

    Subwoofer buzzing, but silent when (disconnected) AVR & TV turn off??

    Hey guys, I think I have a power issue in my cinema room. I recently hooked up a second BK XLS200 Mk2 subwoofer but I'm bumping into something I can't yet wrap my head around. I hope this is the right place to ask for advice and learn. :) Thanks in advance! The new subwoofer I added has a...
  11. T

    Strange audio/amp issue?

    Hi all, Fresh to the forums and audio world and would like some assistance of this strange issue. I recently bought a Schiit Asgard 3 straight from the US (I'm from Australia) and are experiencing 2 strange issue. A bit of background of my usual set up: After the first couple of days of...
  12. S

    S/PDIF motherboard header and jitter

    Hi all This is a question lifted from another thread, I would like to confirm the answer before buying anything :) Question: My motherboard has a S/PDIF header, and I am considering getting something like this to connect my PC to a DAC via toslink optical. Are there any caveats with this...
  13. S

    Another ground loop thread

    Hi all Long time lurker, erm.. second time poster :) I recently received a Topping E30 DAC from Father Christmas ;) . I really enjoy the functionality, but alas, I am suffering from one - possibly two - stubborn ground loops, the symptoms of which are detailed below: SETUP: Old PC > Topping...
  14. M

    Mini-pc or Notebook? Which is better for a better or most natural sound?

    For better sound performance, which is better? mini-pc or notebook? Factors that I consider important are the grounding (of the notebook) and the low power consumption (of the mini-pc), which of the two is better to reduce interference that can cause pollution (and annoying noise degradation) in...
  15. M

    How to improve a harsh and artificial sound?

    What may be causing harshness and annoying sound in my setup? it happens in any music I listen to on my pc, any format and any player I try. I make it clear that I don't talk about noticeable noises or sound distortions (ground loop and stuff like that, I think), I'm also not listening at high...
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