@jzucker, I do understand your feelings. On the one hand I love the high-quality tone that Fractal provides. And, I am extremely happy with the huge number of modifications and tweaks that are possible -- some of which are only possible through modeling. But, there are still a few specific sounds and mods that, so far, I can only do in a physical amp. Overtones are tricky things.
Edit: after listening to Janek Gwizdala I realize I have gotten in over my head. But there is still something to show for the effort.
The patch has a few different changes in it now.
This should help with the Jazz 120 to SS sound, specifically.
There is an FM3 patch of the Jazz120 + Micro Boost at the bottom.
I listed most of the changes below.
I would use the Ideal page to set the Tone Controls. Presence and Depth should work for you now.
And, you have a Master Volume if needed or desired.
AMP BLOCK
Preamp page:
Set "Low Cut Frequency" to "20 Hz"
Set "High Cut Frequency" to "10k Hz" (anywhere you want really)
Set "Tube Hardness" to "10.00"
Set "Preamp Sag" to "OFF"
Set "Preamp Bias Excursion" to "0.0%"-"10%"
Set "Tone Stack Frequency" to ~280 Hz or lower
Try Setting "Tone Stack Location" to "Pre-Mid" instead of "Post"
Power Amp page:
Set "Negative Feedback" to "10.00"
Set "Presence Frequency" to "0.100"
Set "Depth Frequency" to "50 Hz"
Feel free to set the above to your taste.
But, these settings should make your Presence and Depth controls usable for Bass.
Set "PI Bias Excursion" to "0.00%"
Power Tubes + CF page:
Set "Power Tube Type" to "6L6Gc Svet" ( try 6550, KT88, KT77, KT66, and others)
Set "Grid Bias" to "0.999"
Set "Tube Hardness" to "10.00"
Set "Bias Excursion" to "0.00%"
Set "Excursion Time" to "0.50%"
Set "Excursion Recovery" to "0.50%"
Set "Grid Clipping" to "0.0%"
Power Supply page:
Set "Supply Sag" to "0.00"
Set "Power Type" to "DC"
Set "Variac" to "150.0%"
Set "B+ Time Constant" to "1.50"
Set "Screen Frequency" to "1.00"
Set "Screen Q" to "1.000" or "10.000" --- this really shapes the character -- try sweeping this one.
Speaker page:
(Low Freq, LF Q, and LF Reso are worth playing around with -- especially for Bass)
Set "Speaker Compliance" to "70.0%"
Set "Speaker Compression" to "0.00"
Set "Speaker Time Const" to "100.00 ms" (lowest setting)
Set "Speaker Resonance" to "6.0%"
Input EQ page;
Set "Low Cut" to "10.0" Hz
Try the following after the amp has been tightened up.
Ideal page:
Set "Drive" to "3.0" (adjust it for color)
I attached my FM3 patch of these extreme settings..
Once again, I'm not a Bass player, not an Solid-State guy, and not a Jazz guy.
I constructed this patch with a guitar and a Pitch block set to "Classic Whammy," "down 2 octaves."
-- and a cheap set of headphones.
But, I hope this has some value for you.
This should give you an idea of what is possible.
The settings should be changed to taste.
This is just a starting point. But, it should get you closer.
I added a micro boost for a clean shunt around the amp -- but with just a little tube color.
Drive - 1.0 (adjust for color, use output level if you need more volume)
Tone - 5.0
Bass - -10.00
Mid - 2
Mid Frequency - 230 Hz
High Cut - 10k
Clip Type - HV Tube
Bias - 0,
slew rate - 10
Graphic EQ - OFF
You can use the mixer to listen to the Jazz 120 or Micro Boost together or separately.
Any insights, corrections, fixes, updates, modifications, and thoughts are warmly welcomed.