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Mesa power-amp fizz? Recto-Verb 25

Discussion in 'Glowing Bottle Tube Amp Forum' started by Cysquatch, Jun 13, 2019.

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  1. Jun 13, 2019 #1
    Cysquatch

    Cysquatch Tele-Holic

    Posts:
    863
    Joined:
    May 2, 2019
    Location:
    Grovetown, GA
    I've had a Recto-Verb 25 for about year and really, really love the sucker. But, recently have been having more opportunities to start cranking it up and it's not nearly as great as I expected on that front. Turning it above about 5-6 on anything other than pristine clean settings adds some serious trebley fizziness that almost sounds like running an amp through a bad attenuator or something. Just really didn't expect this amp to sound better with moderate volume +higher preamp gain than the inverse.

    Is this a known Mesa design shortcoming that I'm just unaware of or should I start troubleshooting my power tubes?
     
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