Comments on Profile Post by Cynicanal

  1. TheWarAgainstTime
    TheWarAgainstTime
    That's with a boost, normally a Maxon OD-808 or Mesa Grid Slammer. The amp can get relatively tight without a boost if you cut some bass and add mids and channel presence, though I prefer boosting all of my amps for heavy sounds anyway :yesway:
    May 28, 2018
    Cynicanal likes this.
  2. Cynicanal
    Cynicanal
    Cool, thanks for the info. I agree about it getting fairly tight unboosted, which is why I asked; I tried those settings both ways, and it worked fairly well both ways, with unboosted being just a bit dry and stiff feeling but sounding great and boosted feeling amazing but being just a bit crazier than I'm used to (I generally run the gain at just above noon when going boosted).
    May 28, 2018
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  3. Cynicanal
    Cynicanal
    (split into two messages because of the silly character limit)
    It's weird (but cool!) how well having the depth that high behaves with those EQ settings, with a more low-mid focused setting (treble at just above noon, mids about 11'o clock), the mids start doing really weird and ugly things if you put the depth above the master presence. Not so with your settings!
    May 28, 2018
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  4. TheWarAgainstTime
    TheWarAgainstTime
    Yep, all of the controls are very interactive, especially the treble, presence, and master presence in how they affect the midrange and aggression. putting all of the channel settings at 1:00 is a bit spongier and less forward in the grindy/angry mids, despite the bass and mid controls remaining untouched relative to the listed settings.
    May 28, 2018
    Cynicanal likes this.
  5. Cynicanal
    Cynicanal
    OK, so a bit of a blast from the past here, but I was doing some research on the circuit design trying to figure out *exactly* what that EQ is doing, and found some info you might find interesting (and a lot that you probably have already figured out) (broken into multiple parts because I seriously hate the character limit here):
    Aug 25, 2018
  6. Cynicanal
    Cynicanal
    1. If you want to turn your TJ into a KT88 Uberschall in terms of voicing, just dime both the master presence and depth. Those two controls are the only audio-path circuit change between the two amps, and diming both of them is the equivalent to how the power amp is tuned on the regular Uberschall.
    Aug 25, 2018
  7. Cynicanal
    Cynicanal
    (The Uberschall was originally designed after the Dual Recto -- keep the negative feedback in the power amp to an absolute minimum to preserve harmonic content, and use a funky circuit that feeds the power amp mislabeled as "presence" to control the fizz [and the mud, in the Uberschall's case -- more on that weird knob later])
    Aug 25, 2018
  8. Cynicanal
    Cynicanal
    2. The B/M/T knobs are basically a standard Marshall tonestack with one change; the treble capacitor is a different value, which causes the mid-cut that's natural to FMV tonestacks to be shifted higher up and about 3dB deeper. This is why cutting the treble fattens the low-mids, and it's also why the mids knob acts as a treble knob sometimes. The main reason this was done is because...
    Aug 25, 2018
  9. Cynicanal
    Cynicanal
    3. The channel presence knob is one of the weirdest circuits you'll ever see in a tube amp; an LCR circuit that rolls off extreme bass and treble, puts a fairly wide and deep notch at ~400 Hz, and boosts everything else. "Zero" is neutral, and it's really aggressive as you sweep it up; bumping it to just 9 'o clock juices the mid-mids and upper-mids about as much as putting a tube screamer in front of the amp.
    Aug 25, 2018
  10. Cynicanal
    Cynicanal
    The channel volume also interacts with this circuit strangely, so experiment with that some, I prefer keeping channel volume at noon or lower.
    Aug 25, 2018
  11. Cynicanal
    Cynicanal
    Treat 3:30 on the treble knob as noon, correct the high-end by bringing channel presence to 9:00 or more (or less, if you're boosting it), dial mids and bass around that (less mids than normal, probably a touch more bass), and you basically have the craziest souped-up boosted Marshall, 5150, AND Recto ever, all in one amp, based on the details of how you work the power section controls vs. the channel presence.
    Aug 25, 2018
  12. Cynicanal
    Cynicanal
    Or, you can use it the way Bogner probably intended, keep the treble at a "sane" value, use the channel presence more aggressively to dial in your upper mids, and end up with that really fat yet mean sound. Either way ends up sounding awesome!
    Aug 25, 2018
  13. Cynicanal
    Cynicanal
    (I should have just done this first -- here's a pastebin with all of that as I originally wrote it, without the awful character limit getting in the way: https://pastebin.com/WwMSB66T)
    Aug 25, 2018
  14. Cynicanal
    Cynicanal
    Finally, some fun settings to try (this is straight in, no boost):
    Master Presence max, Master depth max, channel volume noon, channel presence 9 o'clock, treble max, mids 9 o'clock, bass 12:30, gain 2 o'clock. Looks stupid as hell, sounds really good.
    Aug 25, 2018
  15. TheWarAgainstTime
    TheWarAgainstTime
    Thanks for the info! There's a lot more to it than I would have thought. I'll have to try out some of those settings over the next few days too
    Aug 25, 2018
  16. Cynicanal
    Cynicanal
    Also, I should probably mention, if you like classic Marshalls, the TJ's channel 1 is almost identical to a 2203 circuit if you do the following things:
    Depth off, channel presence off, master volume as high as you can go without getting the cops called on you (preferably maxed). Use channel volume as your volume knob, master presence as "presence" on the 2203, B/M/T/Gain work like they do on the 2203.
    Aug 25, 2018
    TheWarAgainstTime likes this.
  17. Cynicanal
    Cynicanal
    [continued because of character limit]If you want "sweet spot" 2203 tones at almost reasonable volumes, put the channel volume where you'd ideally put it on a 2203, and adjust the master volume to taste. If you want to get just a bit of boosted flavor while going straight in, try turning channel presence up to 9'o clock to 10'o clock
    Aug 25, 2018
    TheWarAgainstTime likes this.