R.D.
Power User
I’m making an attempt to copy John Suhr’s PT-100 …. The clip I’m working from is a PT-100 played through a CAA 2x12 w/V30’s & mic’ed by a Shure SM-58 ( posted at HRI by Mmmasa ). Props to him for putting it out there ! If you haven’t heard the clip, it’s a good representation of what the PT-100 can do.
Here’s the link: http://www.hugeracksinc.com/forum/viewtopic.php?t=56044
Anyway, I started with the JCM800 because everyone is saying that the PT-100 is a JCM on steroids ! And I wanted to start with something that has an EL-34 Power Amp section. The tonality is right, but I quickly found out that there’s not enough pre-amp gain. I have to run both the pre-Amp and the Master up beyond 7 ( almost to 8 ) to get anywhere close ( and that includes both the bright and boost ON ). I tried running a Null Filter out front to approximate another gain stage, but all that did was make everything noisy ….
Then I experimented with the 3+SE Rhy ( & LD ) too. Those both have sufficient ( in fact more than sufficient ) gain. But since I think Cliff modeled the MESA 2:90 Power Amp section with 6L6’s, the tonality isn’t there ( actually not even close ). I even flipped back and forth between the Plexi and Wrecker tonestacks. Ultimately I settled on the Plexi. But the Marshall tone just doesn’t come back ….
So, the $ 64,000 question: Is there anyway to “marry” the 3+SE with an EL-34 based Power Amp ? Other than to have Cliff re-work the 3+SE Models ?
And that was the easy part …. Next …, how do I approximate the Whomp II and the Feedback control ?
I’m obviously thinking the “Feedback” should be related to the amps negative feedback loop ? That means some combination of Damp & Deep should get it done for me …. John has given some values for the control ( shown below ):
0 = 0.47 K
5 = 100 K
10 = 150 K
Any idea what that translates to in terms of the Damp & Deep in the Axe ?
And I don’t have a clue about how the Whomp II works ? I know how it sounds, but not how it “works” !
Has anyone tried to duplicate something like this in the Axe yet ?
The main thing is the EL-34 Power Section. If I could do that, I think everything else might be able to be worked around ? Then I might be able to really nail both a PT-100 and the OD-100SE+ ( which is significantly different than the pre-amp ) ….
Anyway, thanks for reading …. Suggestions are definitely welcome !
Here’s the link: http://www.hugeracksinc.com/forum/viewtopic.php?t=56044
Anyway, I started with the JCM800 because everyone is saying that the PT-100 is a JCM on steroids ! And I wanted to start with something that has an EL-34 Power Amp section. The tonality is right, but I quickly found out that there’s not enough pre-amp gain. I have to run both the pre-Amp and the Master up beyond 7 ( almost to 8 ) to get anywhere close ( and that includes both the bright and boost ON ). I tried running a Null Filter out front to approximate another gain stage, but all that did was make everything noisy ….
Then I experimented with the 3+SE Rhy ( & LD ) too. Those both have sufficient ( in fact more than sufficient ) gain. But since I think Cliff modeled the MESA 2:90 Power Amp section with 6L6’s, the tonality isn’t there ( actually not even close ). I even flipped back and forth between the Plexi and Wrecker tonestacks. Ultimately I settled on the Plexi. But the Marshall tone just doesn’t come back ….
So, the $ 64,000 question: Is there anyway to “marry” the 3+SE with an EL-34 based Power Amp ? Other than to have Cliff re-work the 3+SE Models ?
And that was the easy part …. Next …, how do I approximate the Whomp II and the Feedback control ?
I’m obviously thinking the “Feedback” should be related to the amps negative feedback loop ? That means some combination of Damp & Deep should get it done for me …. John has given some values for the control ( shown below ):
0 = 0.47 K
5 = 100 K
10 = 150 K
Any idea what that translates to in terms of the Damp & Deep in the Axe ?
And I don’t have a clue about how the Whomp II works ? I know how it sounds, but not how it “works” !
Has anyone tried to duplicate something like this in the Axe yet ?
The main thing is the EL-34 Power Section. If I could do that, I think everything else might be able to be worked around ? Then I might be able to really nail both a PT-100 and the OD-100SE+ ( which is significantly different than the pre-amp ) ….
Anyway, thanks for reading …. Suggestions are definitely welcome !
