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  1. Speaker noise from subwoofer amp

    Audio Theory, Setup, and Chat
    When I connect my receiver (rca output) to my subwoofer amp (xlr input) with an RCA -> XLR cable the speakers produce static and a tone, however there is no static or hum on the subwoofer. The tone is not exactly a hum so I don't think it's ground loop noise, but I am inexperienced and don't...
  2. Sunfire True signature 12" recap

    Subwoofers, Bass, and Transducers
    I'm having a hard time finding good information about the caps needed. This is what I was able to identify from looking at the board. and ordered from Digikey in case anyone else needs to do the repair. I don't know if all the caps are needed, a few posts I found on the web only talk about 6-9...
  3. looping sound coming from speakers after Atmos amp added

    Receivers, Amps, and Processors
    Hi everyone, Ive been discussing this in a Marantz thread, but I wanted to bring it to a larger audience to get some help. I recently added 2 atmos overhead speakers to my 7.2 setup. My 7 speakers (all JTR) are being powered by Emotiva XPR amps, and my atmos speakers (RSL) are being powered...
  4. Subwoofer hum solved

    Subwoofers, Bass, and Transducers
    Hello, I have a powered sub, it used to hum when using spdif from computer to AV. Now, the sub has a volume knob and is connected using 2 Y's, one from the sub and the other one at the AV receiver Sub out. I just connected the Y from the receiver into VCR rec and I just set the volume from the...
  5. Subwoofer Hums if rca cable is connected but not if rings are shorted

    Subwoofers, Bass, and Transducers
    I have a subwoofer which hums. I have tried various scenarios to see where the hum is coming from. I'd like some help with a cause and solution. Cable in question is a coaxial rca cable. Gain of subwoofer is at 50% during test. Hum is audible until around 25% gain. No Hum Off...
  6. This buzzing is driving me INSANE !! Please Help if you can.

    Receivers, Amps, and Processors
    I have an awful buzzing problem with my current PC audio setup that i really need addressing. My setup is as follows: -desktop PC (no battery, on AC) -USB direct from built in USB3.0 port on PC to Peavey USB-P DAC -Dual XLR direct from DAC into A.R.T DTI transformer/isolator -Stereo RCA from...
  7. Audioengine A5+ produce hum when TV powered on

    Speakers
    Greetings, my new audioengine a5+ speakers make a consistent hum/buzz when the TV is powered on. I have the TV and the speakers connected to the same power strip and the speakers are connected to the TV via RCA cables. The hum/buzz stops when I disconnect the RCA cables or power off the TV, and...
  8. Logitech z623 hissing

    Speakers
    Hello I made this account so I can ask about this issue from people who actually know what they are talking about. I don't know very much about this stuff but I know enough be able to get to the bottom of this I'm hoping. I just got new speakers. They are the Logitech Z623 2.1 pc speakers...
  9. Harman Kardon AVR 635 hum

    Receivers, Amps, and Processors
    Hi, My Harman Kardon receiver has developed a hum that I cannot isolate. The hum seems to correspond with the picture. It's there with Apple tv and Directv. It doesn't go up or down with volume control. However, sometimes it changes depending on the picture. For example, when I switch icons...
  10. Dual subwoofers causing a hum, one sub causes no hum

    General Home Theater & Media/Game Rooms
    Hello all. First an obligatory apology that I am a first-time poster and appreciate any patience that I can get, should I screw this up. But here it goes. I can find quite a bit of information on ground loops, not that I understand most of it, but I can find nothing helpful about my specific...
  11. Monitor Audio Vector VW8 Sub Humming

    Subwoofers, Bass, and Transducers
    Hi All I have just bought a Monitor Audio Vector 5.1 set which includes the VW8 sub. This hums quite loudly - it is audible eight feet away, and audible about quiet sections. I have mailed MA with no reply - is this normal? If not, then I'll return it to AudioVisualOnline; if it is normal I'd be...
  12. The 'Official' 2014 Denon "S Series" / "X Series" AVR Model Owner's Thread & FAQ

    Receivers, Amps, and Processors
    The announcements of the 2014 Denon lineup have begun so it's time to start the new master thread for these models. Lot's more info coming soon! In order to relieve this thread of the overwhelming wave of Atmos related discussion, we have created a separate thread for the X4100, X5200, and...
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