fender deluxe reverb hiss

Discussion in 'Amps and Cabs' started by drewnorth, Feb 17, 2012.

  1. drewnorth

    drewnorth Member

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    Feb 17, 2012
    I played my new '65 reissue in the store for over an hour, so I know it was fine when I bought it.
    When I take it off standby now, (it's about a week old) it hisses like a sonofagun.
    I've tried different outlets around the room without a difference.
    There's w-ifi in the room, if that affects anything.
    The amp is tilted back, but it hisses sitting flat too.
    I have another tube amp, a Mesa 5/50 that's absolutely silent.
    Is it just the nature of these things?
    I'm positive it didn't do this when I was doing the sea trials.
     
  2. rw2003

    rw2003 Member

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    Maybe a bad preamp tube?
     
  3. vibrasonic

    vibrasonic Member

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    Dec 16, 2011
    The tubes fender puts in the the new stuff are marginal at best. Try some better tubes
     
  4. SoCalGuy

    SoCalGuy Member

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    Now in So-Cal
    The SOBs just hiss. Gotta' get used to it ...I keep telling myself. jb
     
  5. bwires

    bwires Member

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    Are you using the trem/vib switch? If so, make sure it's plugged in All The Way. Mine hissed like an sob - couldn't figure it out for the life of me till I looked in the back and found that the plug wasnt seated 100%.
     
  6. Rockerduck

    Rockerduck Member

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    True, my DRRI doesn't hiss and I've had it a couple of years. By the way, I have a Mesa 5:50 also. Nice amp too.
     
  7. windwalke9649

    windwalke9649 Member

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    Tubes; Id start by pulling each of the preamp tubes for the 2 channels first (one at a time of course so you can play on the channel that still has the tube and listen for the hiss). if its not them; I'd go to the preamp tube for the phase inverter. I think they use 12AT7, or AU7's, i cant remember. But a lot of people put in 12AX7s for more gain; but if you do, IT HAS to be a really good, quiet, balanced tube with as little microphonics as possible, or you'll get a hiss. I also replaced the reverb driver tube with a lower gain one, it was too splashy for me with overdrive; the lower gain fixed right up.
     

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