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  1. New hum in speakers when avr off

    General Service and Technical Information
    I have been having great success running my Anthem PVA2 to power my mains via the front preouts on my Onkyo 3008. I have it set up for the amp to auto power on when it senses an input signal, and it auto powers off after several minutes of no signal. Recently a hum develops as soon as I turn off...
  2. 2 different hum problems with FBQ1000 (DSP1124)

    Electronic Processing/Equalization Devices
    Hi guys, I just bought a FBQ1000 (the 'new' DSP1124) and I have 2 different humming/distortion problems (at least I think it are 2 different problems) problem 1: As soon as I turn on the volume knob of my AVR I get a humming noise on my speakers. It is NOT there when I FULLY turn down the...
  3. Hum problem.

    Two Channel Audio
    I have been pulling my hair out trying to figure which component is generating a slight hum. I finally located it to the Energy External XO unit. Its power source is a 18V AC wall bug. I moved the power bug to various places and still cannot eliminate the hum . I tied the XO chassis to the...
  4. Challenge with excessive bass...Or rather sectional hum

    Home Audio Speakers
    I was finally able to make my system work - it has sony ssf 6000 front towers , sony saw 2500 sub and rear as sony 1000 connected thru a yamaha 5.1 371 bl. The challenge is that when i listen to my turntable and only my turntable the bass tends to be very loud like a hum and my turntable is a...
  5. High pitched hum from all speakers

    System Setup and Connection
    Hi, i've been researching all afternoon trying to figure out why I have a hum coming from all speakers, but no posts seem to match what's going on. It's higher pitched, doesn't increase when I turn the volume up, and doesn't seem to be tied to anything I plug into the receiver. With everything...
  6. Confusing Hum in subwoofers

    General Service and Technical Information
    I'm not sure if I'm in the right forum. PLease advise where to post and I'll be happy to move it. I began having this problem after I had Dish Network installed. A buzzing hum appears in the subs. The subs are powered by an external amp. I have to leave the subs off during normal watching as...
  7. Plz help my Pc12-Ultra started buzzing

    General Service and Technical Information
    Hello there all. I bought this sub used about 6 months ago and its been working great until yesterday. I had been tweaking crossover settings on my Yamaha amp and noticed a few crunchy popping noises during playback, then all of a sudden it started humming/buzzing fairly loudly. It only hums...
  8. not antoher hum!

    Electronic Processing/Equalization Devices
    Not anther post on the BFD hum! I read through the sticky and was just looking for some simple answers. I have the BFD dsp 1124 and just discovered a low sounding hum. It could have been there before but I just noticed it when I upgraded my receiver. I have an emotiva amp (3 prong plug)...
  9. 60hz. hum?

    System Setup and Connection
    Hello all I'm trying to add a second amp to my theater system for some bass shakers for my couch.my problem is that when I hook up my y-adapter my primary sub amp starts to hum even in standby mode.I figured the secondary rca cable might be inducting the hum. but the hum starts as soon as the...
  10. 1124p...More Hum after adding XLR-to-RCA cable?

    Electronic Processing/Equalization Devices
    I recently just finished a DIY XLR to RCA cable for my 1124p in order to try and get rid of the cheater plug. Without the cheater plug there is a slight hum at my normal subwoofer gain of 10 o'clock. With the cheater plug its dead silent and I was hoping for something similar with the new...
  11. AC hum on Subwoofer

    System Setup and Connection
    Hi all, I'm having problems with a kit subwoofer. I was able to play it last year after some initial problems with humming (which were never properly diagnosed but somehow went away after enough fiddling), but took it apart to apply veneer. Now I've reassembled it but as soon as I turned it it...
  12. XLR to RCA cable causes hum,buzz.

    Remotes | Cables | Accessories | Tweaks
    I had a noise coming from my amp, and I've narrowed it down to XLR to RCA cables going from a Crown XLS 402 to a Emotiva USP-1. I've narrowed it down to the cables because if I unplug them from the amp, it goes silent. The amp is not putting out a 60hz hum turned on and plugged in. The only time...
  13. Plugging plasma tv into outlet causes other equipment to hum/buzz

    System Setup and Connection
    I noticed my subwoofer was humming today... I seldom turn it on as I live in an apartment building and don't want to annoy the neighbors too much. I unplugged everything except the subwoofer and proceeded to plug in one component at a time. As soon as I plugged in my Pioneer 5010FD plasma tv...
  14. BFD Hum

    Electronic Processing/Equalization Devices
    I tried to connect a DSP1124P to my system via the 1/4 TRS connections using a 1/4 TRS to RCA connector. I am trying to run REW through a desk top computer hooked into my A/V system. The computer is connected to the DSP with a USB to MIDI interface. I was able to get the sound card calibrated...
  15. Hum problem with subwoofer amplifiers

    Subwoofer Amps | High Pass Filters
    Maybe some help? I have two proamps, with three sub connections from my preamp going to two samson s-converts, then to the two respective proamps (one bridged). I have 60hz hum from both ch of one proamp, but not the other, bridged proamp. I do not have any cable tv connected, only an antenna...
  16. Hum

    Home Audio Subwoofers
    The hum is back. I've had issues with the cable bax as of late (moto Moxi). If finally quit updating the program guide. Newwave (bought local Charter) send out the repair guy. He removes the isolator http://www.axiomaudio.com/groundisolator.html and all is well with the box, but now I have...
  17. BFD Systemic Problem with Hum

    Electronic Processing/Equalization Devices
    I see many recommendations on the forum to use a BFD to smooth out the bass response and I can see where it is very helpful from the before/after graphs. However, I also see a lot of postings describing a problem with BFD humming which seems to be widespread. I would like to get a BFD to help...
  18. BFD Hum - need help

    Electronic Processing/Equalization Devices
    I have a different sort of problem with my BFD. While the grood loop isn't new, I need another approach to making my own cables. I am running a Samson box to boost the line level, as the receiver's output isn't loud enough. So building an RCA to XLR cable won't work as I've researched...
  19. HUM ???

    SPL Meters | Mic's | Calibration | Sound Cards
    Anyone noticed a Hum from their Sound Blaster Live 24 card thru the main speakers at higher volume levels ? I have it connected to my Vaux of my Denon 3806. I'm using the loop back function on the SB Left Ch.
  20. Sub hum with BFD off or on

    Electronic Processing/Equalization Devices
    Hello, I need to ask for some help with my BFD please. I have the BFD 1124P and with it on or off I get a very loud hum through my Subs. I have run Rew and balanced all my speakers and I have the midi cable connected to the BFD. Gone through the setup on the BFD using the guide I found on this...
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