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181 Views 9 Replies Latest reply: Jul 27, 2012 4:55 AM by Crusty_Old_Rocker RSS
geppert Just Startin'
geppert
188 posts since
Nov 8, 2010
Currently Being Moderated

Jul 26, 2012 10:11 AM

Using DT25's in stereo question

I am just messing around with 2 DT25 heads L6 Linked at the moment and find I can only get "stereo" to work by using TWO amp models in the POD HD500? I can't seem to find any 'specific documention" about this? If in fact you need two amp models for stereo operation via DT25's Linked, that would mean for the most part, that almost ALL the amp factory presets would have to be modified (for stereo) as I see most of them are one amp only. Requiring 2 amp models also peels off the DSP overhead.

 

Do I have this right or am I missing something?

 

I can't get ONE amp cab with a stereo effect block following afterwords (ping pong delay for example) to come out in stereo to twin DT25's via L6 Link. This scenario (one amp model followed by a stereo fx) does work in stereo out the analog outputs however.

 

Just looking for clarification on this.

  • phil_m Expert Line 6 User
    phil_m
    4,243 posts since
    Jan 25, 2007
    Currently Being Moderated
    Jul 26, 2012 10:14 AM (in response to geppert)
    Re: Using DT25's in stereo question

    I don't have two DT25's to test this out, but in the mixer tab in HD500 Edit under the L6 Link section, can't you select the audio for Amp 1 to be "left" and the audio for Amp 2 to be "right". I would think that would make the DT-25s perform like you want them to.

    • geppert Just Startin'
      geppert
      188 posts since
      Nov 8, 2010
      Currently Being Moderated
      Jul 26, 2012 10:31 AM (in response to phil_m)
      Re: Using DT25's in stereo question

      Hey Phil,

       

      Tried every configuration combination I could see on the 500 Edit Mixer Tab but I can't get any sound from amp 2 (right) UNLESS I have two amp models to fill both paths A & B.

      • phil_m Expert Line 6 User
        phil_m
        4,243 posts since
        Jan 25, 2007
        Currently Being Moderated
        Jul 26, 2012 10:58 AM (in response to geppert)
        Re: Using DT25's in stereo question

        I would think there has to be some way to do what you want to do, because you can chain up to 4 DT amps together, and obviously you can't have 4 different amp models on the HD500. How do you have the mixer block pan controls set when you're using one amp model?

         

        According to this document (page 3-4, specifically), I don't see why what I suggested in my first reply wouldn't work.

  • silverhead Expert Line 6 User
    silverhead
    9,592 posts since
    Apr 1, 2009
    Currently Being Moderated
    Jul 26, 2012 1:47 PM (in response to geppert)
    Re: Using DT25's in stereo question

    I don't own any DT amps and have never used the L6 Link, but speaking purely theoretically......

     

    I think you are wanting to use the two DT-25s (or at least one of them) as if it were purely a speaker/monitor. But it's not - it's an amp. Consequently, in order to control 2 DT-25 amps I would expect you need to use a dual amp preset.

     

    I expect what you want to do is easily done via L6 Link with 2 Stagesource speakers/monitors.

  • geppert Just Startin'
    geppert
    188 posts since
    Nov 8, 2010
    Currently Being Moderated
    Jul 26, 2012 2:52 PM (in response to geppert)
    Re: Using DT25's in stereo question

    I think I "fingered" it out? I have managed to make one amp sim feed both DT25's and if I then add a stereo fx (ping pong delay is always a good one for this) it works perfectly producing left to right alternate delays.

     

    There were a couple compounding issues. What I "think" I did wrong in the first case was this .... On the 500 Edit Mixer Tab (using 1 amp sim) I didn't set Amp 2's Control Channel to Channel 1 AND additionally I "think" at the time that I had Amp 2's Channel B Volume turned off. SO ... if the Mixer is set such that Amp 2's control channel is 2, and you don't have an amp simm active on Path B (CH2), then Amp 2 will auto switch to Channel B (as it is supposed to do). SInce I had Amp 2's Channel B's CV (Channel Volume) turned off, naturally I wouldn't hear anything. ALSO, I found that you NEED to have 1 & 2 Amp's "Audio" set for Left and Right respectively AND the Mixer needs to be panned hard left and hard right. IF you are using 2 amp simms then Amp 2's Control Channel needs to be set for CH2. That's why it worked in stereo when I used two amp simms. It's all clear to me now grasshopper.

     

    I have attached a screen shot to show a one amp simm config for 2 DT25's in stereo. Note that you must place your stereo efx AFTER the mixer or it will get summed to mono.

     

    http://i25.photobucket.com/albums/c71/DGeppert/Screenshot2012-07-26at22746PM.png

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    • silverhead Expert Line 6 User
      silverhead
      9,592 posts since
      Apr 1, 2009
      Currently Being Moderated
      Jul 26, 2012 3:47 PM (in response to geppert)
      Re: Using DT25's in stereo question

      Glad you got it figured out - thanks for sharing the solution. Clearly my theoretical work needs improvement!

      • geppert Just Startin'
        geppert
        188 posts since
        Nov 8, 2010
        Currently Being Moderated
        Jul 26, 2012 4:53 PM (in response to silverhead)
        Re: Using DT25's in stereo question

        I am not sure if all this is documented properly? They do show you how to "hook it up" but not (that I could find anyway) clear details about the Mixer Configuration. Also, I am not sure if it is clearly documented that stereo efx need to come AFTER the mixer or they will automoatically get summed to mono. This of course is a non issue through a mono amp but if (like me) you are playing back a POD through stereo desktop monitors then "stereo" is completely a serious issue with efx like Chorus, Reverb, Delay, and dual amp sims. Again, these fx (not the amp sims) need to be positioned AFTER the mixer if they are intended to be presented in stereo. Another little "tidbit" that I am not sure is clearly defined in the documentation are the actual efx that are stereo complient? I have seen a post from someone who did list them but I had to go through all the efx to figure it out. Again, "stereo" is only an issue if you are monitoring in stereo (which I do). Since I happend to have 2 DT25's at the moment (one is a replacement for the other) I thought I would give the "stereo amp" thing a try. It is cool, no question about it. What would be "deal" is the 3-way rig like Larry Carlton uses. Dry guitar in the middle, efx in stereo left & right. Killer but an expensive proposition to set up at ~ $1500/pop for one DT25 Head/Cab.

         

        If anyone wants my list of stereo efx let me know and I'll post it on this thread.

        • silverhead Expert Line 6 User
          silverhead
          9,592 posts since
          Apr 1, 2009
          Currently Being Moderated
          Jul 26, 2012 7:15 PM (in response to geppert)
          Re: Using DT25's in stereo question

          geppert wrote:

           

          I am not sure if all this is documented properly? ..

          ...

          If anyone wants my list of stereo efx let me know and I'll post it on this thread.

          I don't know about 'properly' - that's subjective. But we do know about 'thoroughly', and, no, it certainly is not documeted thoroughly. Your experimentation and posting here wil be helpful to others. I think there are just too many complexities and scenarios in this beastly set of inter-related products to document every scenario thoroughly. So, thanks for your contributions.

           

          As for your list of stereo FX, how does it compare to this?:

          http://line6.com/support/docs/DOC-2099

        • Crusty_Old_Rocker Expert Line 6 User
          Crusty_Old_Rocker
          3,096 posts since
          Jan 24, 2007
          Currently Being Moderated
          Jul 27, 2012 4:55 AM (in response to geppert)
          Re: Using DT25's in stereo question

          I have 2 DT25s and the easiest way to have each amp model go to each DT25 is to put all effects in front of the amp models then set the POD to send amp A to one DT25 and amp B to the other.

           

          I have also set up patches and successfully run 4 DT amps - 2 x DT25s and 2 x DT50s.  The pre effects along with amp A and amp B went to the DT25s while the summed amps + post stereo effects (left & right channels) went to the two DT50s.  Now that's a spicy meatball!!!

           

          Cheers,

           

          Crusty

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