Mesa F-50 Combo - Snap Crackle And Pop |
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Jan 21 2009, 01:11 AM
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So I've been practicing with two bands lately and my gear is really 'racking' up the mileage. Unfortunately now whenever I turn on my Mesa F-50 and play something on the bass notes, I hear a very audible POP or a cracking noise. You know when you burn wet wood and it makes that popping noise? That's exactly what my amp sounds like. I checked the two 6l6's in the back, both are warm and lit. Looks like they're working...
Anyone have any ideas? This is the amp: http://www.mesaboogie.com/Product_Info/Out.../F-50/F-50.html |
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Jan 21 2009, 01:22 AM
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Have you been using it at a very high volume?
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Gear: Fender American Deluxe Stratocaster, Gibson '67 RI Flying V, Mesa Boogie F-30 112 combo, crazy pedals.|
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Jan 21 2009, 05:20 AM
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Not that high volume usually... I will definitely try the line out idea, good thinking JVM. Thanks
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Jan 21 2009, 07:24 AM
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crackle and pop. I'm positive it's an issue with a broken tube.
It can be like that even if the tubes are lit, if they were fully burned out the sympthom would be no sound at all. Tube amps shouldn't be moved around too much since it could damage the tubes. -------------------- My bands homepage
All time favourites: B. Streisand - Woman in Love, M. Hopkin - Those were the days, L. Richie - Hello |
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Jan 21 2009, 10:53 AM
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Does the amp makes these noises only when you turn it on? Do they go away later?
I agree with Micke, it's most likely a tube crackling. How long are you having these tubes? Also, the volume pot could be making a small arc, possibly that needs replacement. Also I know it sounds trivial, but check the cables as well. -------------------- - Ivan's Video Chat Lesson Notes HERE
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Jan 21 2009, 05:33 PM
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I agree with Ivan and Mickem, whenever someone has complained about some popping or crackle in their amp it's usually been the tubes. I'm pretty positive that the problem will go away once you have changed some new tubes in it.
This post has been edited by Toni Suominen: Jan 21 2009, 05:34 PM -------------------- Gear:
-PRS Custom 22 -Edwards Les Paul -PodXT -Ibanez Acoustic Check out my lessons and my instructor profile! My Youtube channel My Last.FM |
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Jan 21 2009, 07:27 PM
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JVM, don't I need to get the amp rebiased if I change out the tubes?
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Jan 21 2009, 07:30 PM
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QUOTE (fatb0t @ Jan 21 2009, 04:29 PM)  You guys think it's only the tubes? that'd be great if that was the issue... Almost positive. Had the crackle and pop syndrome myself so I recognise your description very well. QUOTE (fatb0t @ Jan 21 2009, 07:27 PM) JVM, don't I need to get the amp rebiased if I change out the tubes? Aren't these self biasing? Should say in the manual if you have one. EDIT: Appearantly they are not. Page 15 in the manual This post has been edited by MickeM: Jan 21 2009, 07:33 PM -------------------- My bands homepage
All time favourites: B. Streisand - Woman in Love, M. Hopkin - Those were the days, L. Richie - Hello |
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Jan 21 2009, 08:22 PM
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Just as I though, I remembered it right after all just read it wrong.
 Yes, it's self biasing. Spray some electric spray on the pins of the old tubes and jack em in and out a couple of times before you put the new ones in!I prefer german handbooks with pure facts and less drivel 
This post has been edited by MickeM: Jan 21 2009, 08:22 PM -------------------- My bands homepage
All time favourites: B. Streisand - Woman in Love, M. Hopkin - Those were the days, L. Richie - Hello |
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