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hum noise

  1. HotRodStereo

    Optonica RP-3636 Mk2 Hum

    Hi All, I have an RP-3636 that i just love, It has a nice little Audio-Technica AT-13EX cart and it track and plays extremely well. I love the weight it has, its more resistant to vibration than any other table i have tried. (Stock photo) But alas, my beloved chunk of rock has a mystery hum...
  2. M

    SX-300 hum noise from speakers

    Hello, I got SX-300 but it has hum noise (100Hz) from speakers (both channels) and very loud from phones. I measured main rail voltage (33V) ripple and it was about 0.5Vpp so that can't be the reason. Device has original elko's in. What could cause this noise?
  3. B

    Humming Noise From Technics SL-DD 33

    Hello, recently purchased a technics SL-DD33 turntable. It looks to be in excellent condition and I really like the way it works. Except for one problem - when I turn on my amp, a fairly loud humming noise comes from the speakers. I connected the ground wire, and it reduced the humming noise by...
    • Bkeidel
    • Thread
    • hum noise technics turntable
    • Replies: 4
    • Forum: Turntables
  4. M

    Amp "hums", disappears when touching case

    Dear Community, after successfully restoring a SX450 now i have a SA 610 amp on my desk. It makes a "hum" sound (volume dependent) on both channels, but when touching the case or some of the pots/switches the hum became almost unaudible. I checked the connection cable between main PCB and...
  5. RobbySX

    Pioneer SX-580 audio issue

    Recently I was passed down a 580 that’s been sitting in a closet for I don’t know how long. Cosmetically it looks great, I’m not much of a electronics expert unless you’re talking cars. Anyhow the issue, it powers on lights up and all, however the volume (both channels) is super quiet, with that...
    • RobbySX
    • Thread
    • both channels hum noise low volume pioneeer sx-580
    • Replies: 28
    • Forum: Pioneer Audio
  6. steve wuertz

    Vandersteen 2C One speaker has a persistent hum

    Hello I'm an intermittent lurker and 1st time poster looking for advice. I purchased the pair of 2C from a dealer back in the 80s and I've always loved them and they have been trouble free. I've been away from audio stuff for some time -home projects, career and vintage Alfas. Recently I...
  7. D

    Hum in Pioneer SA5300

    Hi, I have a considerable hum (or buzz?) coming from the SA5300. Somewhere in the 100 Hz range. In both speakers, also in the headphone. The hum is present when no inputs are connected and when volume is down. Doesn't turn up when turning up volume. So all these aspects points at the filter in...
  8. Sergimm

    Trying to find the source of a low hum

    I am experiencing a 60hz low hum in a Marantz 1050 amp I recently recapped. It sounds very much like a ground loop, but I’m not sure anymore. This is how it behaves: Unaffected by volume level Present in both channels, although it hums louder on the right channel Unaffected by tone controls...
  9. MrMetta

    Pioneer SA-301 Amplifier Left Channel Not Working (Only Hum)

    Hello Gentlemen A few years back I bought a Pioneer SA-301 amplifier for few bucks from an auction, After few months of purchasing the left side speaker didn't out any sound (I checked the speaker; it works well.) instead of sound a Hum comes from this channel, attached YouTube video is made...
    • MrMetta
    • Thread
    • hum in left channel hum noise pioneer sa301
    • Replies: 8
    • Forum: Pioneer Audio
  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. G

    CR-620 Buzz/hum

    I just bought for $70 a cosmetically pristine CR-620. All functions work, but there a loud buzz or hum for about the first two minutes after it powers on, after which the buzz fades away. The only thing on the front panel (other than volume) that affects the amplitude of the buzz is turning the...
    • Gary_James
    • Thread
    • buzzing capacitor checking hum noise yamaha cr-620
    • Replies: 6
    • Forum: Yamaha
  12. cmcguire

    Motor hum? Electromagnetic Interference ? Ground issue?

    I'm at a total loss. I have two identical turntables (Mission 775s) with Shure cartridges. They use slightly different grounding schemes and BOTH have the same issue: when the cart reaches the centre of the record there is a low, but audible hum. These tables sound fantastic and solving this...
    • cmcguire
    • Thread
    • ground hum noise mission turnables
    • Replies: 25
    • Forum: Turntables
  13. Kevbo

    Loud, Low Hum When Marantz Turned On

    I have been using my Marantz 2240B for about two years now with little issue (all have been fixed). And today, which was just another morning for me to turn it on to listen to music while working, a loud, low-grade hum is coming from the speakers. Music still plays fine, but there is the hum on...
    • Kevbo
    • Thread
    • audio audio issue ground hum hum noise humming humming sound marantz speakers
    • Replies: 36
    • Forum: Marantz Audio
  14. L

    Marantz 2226BL Hiss and Hum on Phono

    Hello, I am new to this forum. I recently bought a receiver Marantz 2226BL. I have been told that it is the same as 2226B, except that it has LW radio besides AM and FM and I heard it is very rare. The problem I am having with it is that the phono has a hissing noise when there's nothing...
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