HV mod -- I highly recommend it

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BABMusic

BABMusic

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Back in August 2024, I bought a BE50 head, which aside from the custom exterior, was just stock. In the winter, I asked Dave what could get close to the JEL50 tone as an optional switch. He said the C45 was "similar, but not exactly" the same as the JEL tone. I had him add it, and It sort of made it sound like a JCM800, but not quite what I was wanting. I found myself playing most of the time with the C45 turned off. So later in the spring of this year, I found out that a thump frequency mod of the JJ/Slax tone could be added to the amp. This really did make a big difference in the tone, but you have to turn the thump up pretty high to hear it. This mod was worth it. However, Dave knew that I wanted the JEL tone and he surprised me with this HV switch. The high voltage switch does something to the highs and the lows of the C45 which really does make it sound like a JCM800. It just magically adds some of those higher Marshall-ish frequencies that people sometimes wish Friedman's have. It also fills out the low end just a bit more in that the sound is punchier. The C45 by itself does add some punch to the tone, but this adds those higher frequencies that are missing. It still has a little bit smoother tone than an actual 800, but it sounds so good that I find myself almost always playing with this HV on.
 

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I had a Friedman Jose-modded 100w Marshall and went back n forth between the C45 and ‘regular’ mode. I mostly preferred the regular mode but liked the C45 mode better for rolled-back clean up.

It just seems to vary amp to amp on what the optimal mod is.
 
It just seems to vary amp to amp on what the optimal mod is.

I think this is true too. I have no experience with a Marshall with a Friedman C45 mod, but some people claim they sound very different in how I hear my own C45. My C45 without the HV sounds sort of "tubby" or punchier, but not tighter. The HV somehow makes it more focused and slightly tighter while making it sound so much better in the high frequencies.
 
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