angelspade
Well-known member
Interesting...What does this mean?...Just curious
J
jasonP
Well-known member
After the mod the crunch channel isn’t overly bassy as before so it balances with the other channels better than before. It’s like all the channels blend better now and you aren’t trying to run the bass super low on the crunch channel to try and get rid to the flub.
angelspade
Well-known member
OK, understood...That makes total sense. I thought you were implying that the mod had an affect on the other channels as well. Thanks for clarifying.
J
jasonP
Well-known member
Tomorrow I’ll upload a picture and from the schematic location of what I’m taking about. It only affects the crunch channel and by making the cap smaller it lets less bass go to the next gain stage, reducing the flubbiness or looseness of the bass allowing the bass knob to have more useful range and keep the low notes tighter then before. I tried a couple different ones from .001 to .0015 to .0022uf and found I like the .0022uf over the stock .01uf which to me I had to run the bass knob on like 1 and it was still loose and uncontrolled.
angelspade
Well-known member
Great...Thanks brother
jchrisf
Well-known member
I'm sad I missed the JVM Forum before I actually got one. Did they archive the info anywhere?
J
jasonP
Well-known member
JVM page on FB has the documents for all the mods but I don't believe anyone ever addressed the crunch channel. Here is the cap I changed on the crunch channel to reduce some of the bass.
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angelspade
Well-known member
There was some interesting info on there for sure...I read some of it. But specific to all the different mods on that forum, it seems that at the end of the day many found that the vast majority of the mods did not really improve the amp and most prefer it stock. The Satch model included some of these common mods and I can tell you that the one I played sounded completely tame and neutered by comparison. The mod specific to the crunch channel referenced by JasonP is interesting for sure however. Also, as I have mentioned previously if Ground Zero (@RedPlated) were to develop a mod specifically for the JVM, I would likely acquire a second as a donor for that purpose. His mods seem to retain the original character while making them tighter, more aggressive and generally meaner sounding. All his Marshall mods sound killer.
angelspade
Well-known member
THANKS!!!!
