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  1. How can I eliminate humming noise from Behringer NU1000DSP based DIY subwoofer?

    Ported Subwoofer Build Projects
    I'm building a pair of subwoofers for my home theater based on the mentioned amp. As soon as I turn on the amp I get a lot of humming noise. I did some Google research and learned that a unbalanced/balanced converter can eliminate noise. I also browsed some Pro audio websites and found a hum...
  2. SW-8MK2 100w sub Humming

    Hi all. Does anyone know of a fix to stop the humming. Its so loud that we need to unplug the sub when its not in use. Looks like its a common problem with them. Even if I unplug the audio cables it does it
  3. Speakers Connected to PC are Humming

    System Setup and Connection
    Yes, I know it's an oldie but goodie. Speaker/Headphone outputs (both front and back) on PC connected to AVR or Amp produces discernible hum through the speakers. Cable is 3,5mm to RCA. All devices are on the same power circuit and I have thrown a ground loop isolator in there for good measure...
  4. Mild buzzing sound from power amp (unit itself)??

    Home Theater Receivers | Processors | Amps
    I have an Adcom GFA-7500 power amp, and noticed yesterday there is a mild, buzzing sound coming from the unit (not through the speakers). Any thoughts on what it could be?? I unplugged the power cord from power strip, and plugged directly into the wall. There was no buzz at first, but then...
  5. Amp humming need help

    Home Theater Receivers | Processors | Amps
    I've got an older Rotel receiver (rsx-1057) that I was trying to get some more power from, so I picked up a used B&K amplifier It's an av125.5. The amp sounds great when on and does a better job of feeding my B&W 703's. My problem with it is, after turning the receiver off, the amp goes in to...
  6. Humming in Sub and out of ideas

    Home Audio Subwoofers
    Alright everybody, I thought I had a handle on this, but apparently I was wrong. I noticed a humming in both of my subs about a week or so ago. I figured out that I had not properly grounded my rack so I did that and it went away. Sometime over the weekend, a less audible hum came back to one of...
  7. REW "Check Levels" procedure + humming noise from speaker

    SPL Meters | Mic's | Calibration | Sound Cards
    I've been trying to set up REW with a dB meter from RadioShack. I've calibrated the soundcard. When I do the "Check Levels" I get a humming/buzzing noise from my speaker together with the test sound. I have connected: - Line-Out (PC) to an RCA-input on my receiver - Line-IN (PC) to the...
  8. Humbuster fix for humming transformers

    DIY Repair and Maintenance
    Does anyone have experience with this product? Manufactured by PS Audio to remove DC from the AC line so the xfrmr won't buzz/hum. I'm looking for a solution for a humming tranny in my power amp. I have tried/researched everything else.
  9. BFD is Humming

    Electronic Processing/Equalization Devices
    Hi All! I have recently purchased a second-hand DSP1124P from Ebay in the US. It has arrived in Australia and I have switched the fuse around for 240V operation. When I plug the unit in and power on it hums... Now this does not seem to be the normal hum situation that is well addressed on...
  10. I need advice... humming noise from light dimmers...

    Remotes | Cables | Accessories | Tweaks
    Hi! I'm going to try and explain my situation the best I can... I was wondering if you guys know of a product that eliminates humming noises caused by dimmers which are used in my ceiling lights. I am aware that dimmers in lights can cause a very low humming noise on certain electronic...
  11. humming sub .....help lol

    Home Audio Subwoofers
    :dontknow:hello , i have a fosgate audionics 330 watt powered 15 in subwoofer its in perfect condition but even when it is off it hums ???? mabye dirty power ?????? helpppppppp
  12. BFD Humming on it's own...

    Electronic Processing/Equalization Devices
    Hello, I own my bfd a while now, but didn't have the chance to look into it, cause I had the hum, and measurements showed pretty good response without equalising. But I want to get it better. However, I still have a hum, and two of them actually 1) a hum caused by the bfd itself, without...