Would a bad tube cause a buzz?

VR3
VR3 Posts: 28,644
edited November 2007 in 2 Channel Audio
Please say so...

If not, I may throw my entire stereo out in the yard....

I turn off my Candela - the buzz goes away...

I tap on the faceplate/top I hear a static as I knock from the speakers...

Tell me I have a bad tube...

Something...so I can go back to sleep
- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
Post edited by VR3 on
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  • TitaniumMan
    TitaniumMan Posts: 93
    edited November 2007
    Yes, a bad tube can buzz and react to tapping on the faceplate. When I had tube gear, I made it a habit to have at least three spares for almost every tube in the system.

    Ya think that may be why I'm broke?
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    I have spare tubes - lol

    Just not enough patience at 5:30am to change them ;)

    I just turned it off... lol

    Finally went back to sleep an hour later lol - and now I gotta go to work

    But thanks

    I'll change them out tonight!
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • tonyb
    tonyb Posts: 32,963
    edited November 2007
    5 am?? AHHHHH......to be a young bass freak again...:)
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  • reeltrouble1
    reeltrouble1 Posts: 9,312
    edited November 2007
    how's that gotee coming for you there Trey???

    the tube is the most likely culprit, certainly sounds like at least one is microphonic. Sometimes the piece can start off quiet then get noisy as the tube heats up.

    RT1
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  • dorokusai
    dorokusai Posts: 25,577
    edited November 2007
    Start wacking it with a pencil.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • JimBRICK
    JimBRICK Posts: 1,543
    edited November 2007
    try pouring water on it
    2 CHANNEL
    Speaker - Klipsch Heresy II
    Under construction
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  • heiney9
    heiney9 Posts: 25,165
    edited November 2007
    dorokusai wrote: »
    Start wacking it with a pencil.

    What IT are you referring to? :D
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • RuSsMaN
    RuSsMaN Posts: 17,987
    edited November 2007
    All tubes are microphonic, some just more than others.
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    Ok...

    So I changed the tubes...

    And it actually got worse....

    Odd --

    Go from there ---

    Totally disconnect the pre...

    Attach the CDP directly to the amp...

    When a CD is NOT playing -- it is kind of quiet, a very slight static...

    When a CD is playing, all hell breaks loose...

    I'm starting to point fingers at the Mono Blocks...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    Update 1-

    Disconnected the CDP...

    Connected it directly to TV

    Slight static (I would give it on a loudness scale a 3 out of 10)

    And when the CDP is plugged up only - cd playing, a 10...

    From there --- if everything is hooked up normally, no CD playing -- and even on a different source, I will have to say its on a scale of 5....

    Nothing makes sense right now
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited November 2007
    Tube CD player............I would check the tube sockets in it. I know you don't use that output, but it doens't turn them off.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    Update 2 -

    Connected preamp to amps -- no CDP in chain

    Noise continues

    CDP is dismissed from possible causes...

    Amps remain the probable problem...

    F*CK
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    Update 3 -

    Is not a power related noise

    Bought power conditioner today -- problem persists...

    EDIT -

    "HEARD A slight "POP"" --- noise INCREASES to intermitent static
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited November 2007
    How about the 990?
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    990 isnt back from Outlaw yet -- in transit..

    Only thing plugged up right now...

    Amps, Pre, TV - Crown XTi1000 is turned off --- but that shouldnt cause any noise...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    I just disconnected the Crown all together, noise persists...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited November 2007
    Run the TV directly into the amps if you can contol the volume of TV. This tests just the amps.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    I did ---

    Hard to tell exactly...

    If I muted the sound -- I heard a slight static... not to the extent I am hearing it now....

    Its hard to tell if there is static going on when the TV sound is on...

    I don't think its the preamp -- reason being when I plugged the CDP up, it basically went to hell...

    I dont know - trying to call Klaus, no answer
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited November 2007
    Is it both channels? I doubt both amps go bad at the same time.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    Right channel is WORSE than the left channel...

    The right channel has a higher volume of static and is more intermitent - as in its a variation of static - not a continuous static....

    The left channel is a constant static at a lower volume

    Nothing really makes much sense right now
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited November 2007
    Bad signal or power somewhere. Both amps won't crap out together. Check all cabling.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    I swapped the left and right outputs on the preamp ---

    There is still a slight static in the left speaker and a much louder static in the right...

    - but it no longer an intermintent static... hmmm --

    Weird....

    Sounds like the amp powering the right channel is blah

    And the amp powering the left channel still has static -- but not near as much... not sure - not sure not sure
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    One thing to point out -

    This static does NOT increase when you increase the volume

    Its a constant static no matter what...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited November 2007
    Try the preamp into your Crown into your Taylos.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • Serendipity
    Serendipity Posts: 6,975
    edited November 2007
    Trey,

    Try to run the TV's audio out directly into the amps again.

    TV -> Amps -> Taylos

    Then switch the left/right monoblocks and see if the problem persists on the same amp.

    I know you did this before but try it again just to be sure.
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    Plugged up Crown --

    Zero noise issues
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    Yep --

    Absolutely no noise issues coming from the Crown

    Looks like the Monos are having some MEGA issues...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Serendipity
    Serendipity Posts: 6,975
    edited November 2007
    That basically says it's the monoblocks.

    However, like I said, try the TV's audio out into the monos again. Sometimes weird things just creep up...

    Oh yeah, if possible, connect your CDP to one of the "Audio/Video In" inputs on the TV. What happens then?
    polkaudio RT35 Bookshelves
    polkaudio 255c-RT Inwalls
    polkaudio DSWPro550WI
    polkaudio XRT12 XM Tuner
    polkaudio RM6750 5.1

    Front projection, 2 channel, car audio... life is good!
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  • Serendipity
    Serendipity Posts: 6,975
    edited November 2007
    Trey,

    It's nearly impossible for TWO amps to go out at the same time. Literally. If it were just one monoblock, yes, possible, but TWO?
    polkaudio RT35 Bookshelves
    polkaudio 255c-RT Inwalls
    polkaudio DSWPro550WI
    polkaudio XRT12 XM Tuner
    polkaudio RM6750 5.1

    Front projection, 2 channel, car audio... life is good!
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  • VR3
    VR3 Posts: 28,644
    edited November 2007
    Hey

    It makes as much sense to YOU

    as it does to ME

    lol
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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