Dialing in the Plexi model

Discussion in 'Discussion' started by Phosphenetre, Jan 8, 2019.

  1. Phosphenetre

    Phosphenetre Member

    Joined:
    Jan 8, 2019
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    1
    I'm finding the Plexi model on my AFB to have a very unnatural amount of high-mid content: I'm talking between 2 and 3.5khz or so, even with conservative treble and presence knob settings. I'm using the CelestionPlus G12M Greenback impulses, and playing a PRS Custom 24. I'm currently running a 9 dB cut around 2.2khz to combat the harshness, but it seems like a fairly extreme move to have to do.

    How are you guys dialing in your Plexi sounds?
     
  2. slateboy

    slateboy Senior Member

    Joined:
    Dec 20, 2016
    Messages:
    286
    Likes Received:
    148
    Trophy Points:
    43
    Location:
    uk
    Home Page:
    Those celestion IRs you mentioned do have a high amount of upper mid, as you mentioned. Can be a bit in-your-face when auditioning at home but should sound more "balanced" in the context of a mix.
    I've not found a use for the G12M as part of my live rig yet because of this.
    Check out the this thread on the subject of plexi tones
    http://atomicamps.com/forum/index.php?threads/any-plexi-love-in-this-forum.1487
     
    Matt likes this.
  3. Jace Nuzback

    Jace Nuzback Senior Member

    Joined:
    Apr 9, 2017
    Messages:
    731
    Likes Received:
    500
    Trophy Points:
    93
    Occupation:
    Product Specialist Atomic Amps
    Home Page:
    Here's a couple of my latest Plexi presets.
     

    Attached Files:

    Phosphenetre and Matt like this.
  4. Matt

    Matt Active Member

    Joined:
    Sep 19, 2017
    Messages:
    29
    Likes Received:
    27
    Trophy Points:
    13
    A timely topic! I spent some time playing around with the Plexi last night myself. I found I had to turn down the damping dial (still not sure what this is supposed to represent in a physical amp) to get it to sound near where I wanted.

    I also found it a bit lacking in the bass and midbass compared to what I would have expected from a Plexi, but I didn’t get to the point of switching cabs yet, and I want to try that before applying too much EQ.

    I will say it was starting to sound pretty good, and I am sure the tone I am looking for is in there. I just need to find it. I will be sure to try Jace’s pre-sets tonight as well.
     
  5. dubiousMe

    dubiousMe Well-Known Member

    Joined:
    Jan 2, 2017
    Messages:
    99
    Likes Received:
    34
    Trophy Points:
    18
    Out of curiosity, how are you connecting your AFB? Do you have it straight to an interface? Front of an amp? Or via the Fx Return of an amp?
     
  6. Phosphenetre

    Phosphenetre Member

    Joined:
    Jan 8, 2019
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    1
    Thanks, Jace! I just noticed these are high-gain presets, do you have any go-to presets as a starting point for a low or medium gain plexi sound?

    Yeah, I felt the same way about the low-end in general. The model sounded a bit thin compared to what I'd expect from a Plexi, at least at lower gain settings.

    Straight into an interface, listening through studio monitors.
     
  7. dubiousMe

    dubiousMe Well-Known Member

    Joined:
    Jan 2, 2017
    Messages:
    99
    Likes Received:
    34
    Trophy Points:
    18
    Hmmmm, should be straightforward in this case. IMHO, I would try out some ownhammer IRs which I feel are generally darker sounding compared to Celstion IRs. Just my 2 cents. :) Good luck!
     
  8. Matt

    Matt Active Member

    Joined:
    Sep 19, 2017
    Messages:
    29
    Likes Received:
    27
    Trophy Points:
    13
    Jace, on both of these presets, you have the level in the amp block down about 10 dB. This results in overall output level well below my other presets. Is there a reason/benefit to dropping the level like that? Also, is there a benefit/difference to doing it right in the amp block and not later in the chain?

    Thanks!
     
  9. Jace Nuzback

    Jace Nuzback Senior Member

    Joined:
    Apr 9, 2017
    Messages:
    731
    Likes Received:
    500
    Trophy Points:
    93
    Occupation:
    Product Specialist Atomic Amps
    Home Page:
    Matt,
    You can turn down the gain and/or turn the boost off to clean them up a bit.
    It's best to pick one level parameter to level match your presets.
    I like using the AMP block level. You can certainly turn this level up to match your other presets.
    You can clip the D/A converter in the box if you have too much output level.
    Keeping the AMP block level lower gives you more headroom so that doesn't happen.
    Jace
     
    Matt likes this.
  10. NelsonP

    NelsonP Senior Member

    Joined:
    Feb 11, 2017
    Messages:
    232
    Likes Received:
    105
    Trophy Points:
    43
    Since the last firmware update i'm finding that several of my marshally (plexi, hot brit, friedman) patches are sounding worse, less bass, more upper mid range harshness etc.

    I've been trying to dial it out using both the physical tone controls and the eq blocks. It could be clipping in the signal chain somewhere but i'm not getting any clip warnings.

    Haven't managed it yet though and its killing my enjoyment a bit.
     
  11. Jace Nuzback

    Jace Nuzback Senior Member

    Joined:
    Apr 9, 2017
    Messages:
    731
    Likes Received:
    500
    Trophy Points:
    93
    Occupation:
    Product Specialist Atomic Amps
    Home Page:
    If you want to send me a few problem presets I'd be happy to try and tweak them and send them back to you.
    Send them to jnuzback@atomicamps.com.
    How do you monitor your sound? Studio monitors, FRFR, guitar amp?
    Jace
     
    dubiousMe likes this.
  12. NelsonP

    NelsonP Senior Member

    Joined:
    Feb 11, 2017
    Messages:
    232
    Likes Received:
    105
    Trophy Points:
    43
    Thanks Jace, check your pm's
     
  13. Phosphenetre

    Phosphenetre Member

    Joined:
    Jan 8, 2019
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    1
    I've been sifting through the Ownhammer MRBW GNR M25 IR pack all day, and I'm finding it easier to dial the Plexi in, now. It still is a little brasher than I'd expect, but it's definitely closer now. Funny how I assumed the Celestion G12M IR would be the king.

    Just to confirm, by 'amp block level' you mean the setting that's accessible in the 'AMP' page of the editor program, not the hardware level knob on the unit itself, right?
     
  14. Matt

    Matt Active Member

    Joined:
    Sep 19, 2017
    Messages:
    29
    Likes Received:
    27
    Trophy Points:
    13
    Correct.

    In the software, the amp configuration block has a control for level that adjusts the volume going to the next block without seeing to impact the tone at all.

    I think the physical level knob is global and not influenced by the patches. I think of that as a volume control for the headphone out and a level matching control for the signal out to the power amp.
     
    Jace Nuzback likes this.
  15. Slartibartfarst42

    Slartibartfarst42 Well-Known Member

    Joined:
    Apr 24, 2017
    Messages:
    124
    Likes Received:
    35
    Trophy Points:
    28
    I find that I use a Screamer model with a lot of my patches, largely because using the tone control has such a dramatic effect on the sound of the patch. I remember a while ago Jace explained why it has such a dramatic impact but I can't remember the details. It certainly doesn't function like a conventional tone control.
     
  16. Jace Nuzback

    Jace Nuzback Senior Member

    Joined:
    Apr 9, 2017
    Messages:
    731
    Likes Received:
    500
    Trophy Points:
    93
    Occupation:
    Product Specialist Atomic Amps
    Home Page:
    The tone control is a HPF (High Pass Filter) meaning that it cuts low frequencies. Starting with the tone control fully left at 0% it doesn't cut any low frequencies. The higher you turn the knob the less low frequencies you'll have.
     
    viden likes this.
  17. viden

    viden Well-Known Member

    Joined:
    Mar 29, 2017
    Messages:
    51
    Likes Received:
    19
    Trophy Points:
    8
    That is very interesting. I always assumed having it at 12 o'clock would be neutral.
    At least that's how the actual TS pedal has it set isn't it?
     
  18. Jace Nuzback

    Jace Nuzback Senior Member

    Joined:
    Apr 9, 2017
    Messages:
    731
    Likes Received:
    500
    Trophy Points:
    93
    Occupation:
    Product Specialist Atomic Amps
    Home Page:
    That's why I called attention to it. Most people would assume that 12 o'clock would be neutral.
    Here 0% would be neutral. You may find that it still sounds best at 12 o'clock or higher.
    But it always bugs me when a physical OD pedal is turned ON with the tone set neutral and
    it STILL cuts low frequencies. They're trying to provide a tighter low-end for better cut.
    Which is fine, but I should be able to bypass that if I just want more gain!
    By setting the tone control to 0% this is EXACTLY what you get!
    So YOU get to decide how much low frequencies get cut.
    Jace
     
    viden likes this.
  19. dubiousMe

    dubiousMe Well-Known Member

    Joined:
    Jan 2, 2017
    Messages:
    99
    Likes Received:
    34
    Trophy Points:
    18
    I started out with Celestions as well, but accepted that it may not be for me. Found what I was looking for with OH IRs. :)
     
  20. NelsonP

    NelsonP Senior Member

    Joined:
    Feb 11, 2017
    Messages:
    232
    Likes Received:
    105
    Trophy Points:
    43
    Quick update.

    Jace has been incredibly helpful with trying to dial my presets in and I've learned a ton from his approach.
    In the process I've discovered that the IR makes the biggest difference. So if you're not hearing what you want to hear then change the IR first. Then start trying to dial the tone in. You can waste a lot of time otherwise.

    My next problem is that I'm finding the choice offerred by the Ownhammer IRs overwhelming. The IR pack that I have has 6893 different IRs in it - for just one cab! So I'm now trying (and failing) to navigate my way through that.
     

Share This Page

Share