Prosonic Head! 5751's - oh yeah!

Discussion in 'Amps and Cabs' started by el34junior, Jan 13, 2015.

  1. el34junior

    el34junior Supporting Member

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    Pulled my Prosonic head out of semi-retirement for a recording session.
    Put 5751's in all four preamp slots and somehow ended up with the best tone I've had in years. The Normal channel on it always delivers. The Drive channel with the 5751's takes it to the promise land.
    I used the clean channel with my Maxon OD820 for the first track & nothing but the Drive channel for track 2 & all the leads.. We're a 3 piece so some of the songs didn't need a 2nd guitar track, but the drive channel recorded so well I tracked 2 on all of them.
    The normal channel is very warm on a Prosonic & I always had a tough time taming the high-end on the drive channel with 12AX7's. Those days are gone.. 5751's make it easy to dial both channels in.. So simple, no mods, just put some tubes in I had laying around.. Wahla!
    To think, I was actually thinking about selling it.. It's here to stay....
     
  2. kwicked

    kwicked Supporting Member

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    Love to hear some clips. Im a recent convert to 5751's. Never goin back!
     
  3. spookyelectric

    spookyelectric Supporting Member

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    where are you guys getting your 5751's? New tubes crap out too quick for me and don't sound that great. I'm still running an old Westhinghouse/RCA 5751 and GE 5751 in my amp right now. Great stuff!
     
  4. ggwwbb

    ggwwbb Member

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    Hmmmmm.......I've got a Prosonic head and a combo......I may have to find some and give them a try. Neither of mine are going anywhere.
     
  5. Bucksears

    Bucksears Silver Supporting Member

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    Telefunken & JJ just came out with an ECC82-TK preamp tube. Supposed to be medium gain/low noise.
    REALLY tempted to get one (or two) for my JSX combo.
     
  6. el34junior

    el34junior Supporting Member

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    Believe it or not the JJ 5751's sound great.. I was shocked how warm they are.
     
  7. kwicked

    kwicked Supporting Member

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    Got mine on Ebay (tested and with return policy). 30 bucks for 2 used GEs, not much risk and they sound great. We will see how long they last
     
  8. gkoelling

    gkoelling Member

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    The JAN GEs are only $35.00 I've had some JAN Philips 12AT7s in my Gries for about 5 years and they still sound great.
     
    Last edited: Jan 24, 2015
  9. sickboy79

    sickboy79 Member

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    Very cool! 5751s can really do magic is some amps. The Prosonic is a great amp. I'd love to hear how it sounds with 5751s.

    KCA NOS tubes is a fantastic source for NOS 5751s. Mike has them in all price ranges.
     
  10. gkoelling

    gkoelling Member

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    He also processes orders immediately!
     
  11. Echoplexi

    Echoplexi Silver Supporting Member

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    I love the jan ge 5751s I got from mike
     
  12. sickboy79

    sickboy79 Member

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    I've got a few of those myself that I bought from him. Agree. Great tube!
     
  13. Bucksears

    Bucksears Silver Supporting Member

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    Echoplexi & sickboy79,
    What amps do you have 5751s in? Anything high-gain?

    Just curious how low the noise is on the JAN GEs.

    Thanks
     
  14. Echoplexi

    Echoplexi Silver Supporting Member

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    I've used them in a jcm 800 and a bf bandmaster. Gonna try it in my 72 marshall too. Low noise and really warmed and smoothed out the amps for me
     
  15. Bucksears

    Bucksears Silver Supporting Member

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    Nice - do you just use one (in the JCM800), like in V1, or do you have them for all gain stages?
     
  16. Echoplexi

    Echoplexi Silver Supporting Member

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    With the 800 I have used 1 in v1 and v1 and v3 with a 12ax7 in v2. Both ways were sweet and made the amp warmer smoother and quieter. When I put all 12ax7s back in the amp felt louder and more cutting. V1 will make the most difference. I used the 800 as a pedal platform and got most of my drive sound from a pedal so I was trying to make it as pedal friendly as possible
     
  17. Echoplexi

    Echoplexi Silver Supporting Member

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    Bucksears I'll send you one to try if you want. If you don't like it send it back
     
  18. Bucksears

    Bucksears Silver Supporting Member

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    PM'd
     
  19. dmagalhaes

    dmagalhaes Member

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    I bought 8 Sylvania 5751's at an audio swap meet yesterday, 4 yellow box and 4 gold box, 1 Raytheon 12ax7 black plate, 2 RCA 12ax7 grey plate, and a Telefunken 12ax7, all NOS in boxes for $35 dollars. I missed a NOS Mullard GZ34 for $60 by about 10 seconds.
     

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