Now it’s an episode of Amp nerd sheeeiit!!
Posted: Fri Oct 18, 2024 1:14 pm
So I find Dave Friedman to be more or less a fat douche but I’ll still watch some of his content. I forget which one I saw, but while I may not have the best ears I really feel I hear things pretty well. Even testing these days, despite tinnitus, I hear way above my age average. And for YEARs, like most with tube amps, you feel the tone changes from time to time. Temp, humidity etc etc. but one thing I didn’t factor is the Power coming from the wall outlets. And one of Friedman’s videos we’re talking about variacs to lower Volts on some amps, but also just to make sure you aren’t feeding a modern amp TOO high of a voltage. Most of these can’t run on low volts like Say EVH did , but I specifically remember freidman saying “If you have 125v hitting your amp it’s never gonna sound good.
Well I got a multimeter so I checked my outlets in my room. It was 126! Well god damn. Could this be this midrange harshness that I swear my 5153 el34 100 suffered from from time to time. Some days I really couldn’t take it. It wasn’t always there, so I was thinking it was just ears, room temp, humidity. All the things we assumed for so long. And I was gonna buy a variac but the thing is I’d have to check the wall voltage daily to determine where to set the variac. Cause My house fluctuates between 121v and 130v I’ve found. So a variac set 10v down could be at 111v some days and modern amps won’t like it that low. So I bought the Brown box. Basically an overpriced variac BUT it’ll constantly tell you what the actual voltage from the wall is. I figured this would be easier and more effective..
And I’m gonna tell you, all those years we, as often times during band practice everyth in g was perfect only to fucking sound like ass the next time, it may have been inconsistent wall voltage. Cause I set it between 118-120 depending and I haven’t had that weird midrange honk and harshness since I got this thing…..
Here’s a pic of it this morning sitting at 128! And usually the brown box knocks a volt or 2 down by default. I don’t even need to be attenuating. So likely this was at 129-130v. And Dave Friedman was right, my amp sounds like total shit when being fed that.
Well I got a multimeter so I checked my outlets in my room. It was 126! Well god damn. Could this be this midrange harshness that I swear my 5153 el34 100 suffered from from time to time. Some days I really couldn’t take it. It wasn’t always there, so I was thinking it was just ears, room temp, humidity. All the things we assumed for so long. And I was gonna buy a variac but the thing is I’d have to check the wall voltage daily to determine where to set the variac. Cause My house fluctuates between 121v and 130v I’ve found. So a variac set 10v down could be at 111v some days and modern amps won’t like it that low. So I bought the Brown box. Basically an overpriced variac BUT it’ll constantly tell you what the actual voltage from the wall is. I figured this would be easier and more effective..
And I’m gonna tell you, all those years we, as often times during band practice everyth in g was perfect only to fucking sound like ass the next time, it may have been inconsistent wall voltage. Cause I set it between 118-120 depending and I haven’t had that weird midrange honk and harshness since I got this thing…..
Here’s a pic of it this morning sitting at 128! And usually the brown box knocks a volt or 2 down by default. I don’t even need to be attenuating. So likely this was at 129-130v. And Dave Friedman was right, my amp sounds like total shit when being fed that.