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Dt25 With Hd500 And Two Amp Models Selected

dt25 hd500 amp

Best Answer phil_m , 02 July 2013 - 10:04 AM

The power amp setting on the DT-25 (topology, class, pentode/triode) defaults to match whatever amp you have in path A when you first select that amp, but they can be set to whatever you want them to be. If you put an amp model in path B, the power amp setting on the DT-25 won't match the amp you bring up (well it might not - you could use an amp model with similar defaults), but it's still being sent through the DT-25's power amp. So you're essentially blending two preamps signals to send through one power amp. You have to decide how you want the power amp configured.

 

If you want the DT-25 to completely ignore Path B, you'd have to set that in the L6 link settings page. Under the audio portion, you can select what you want sent to each DT-25 - it can be the left and right output (this is default), Amp A, Amp B, or Amp A/B. With just one DT-25, you're probably OK just leaving it left and right, but everything you put in the tone will show up at the DT-25.

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#1 edstar1960

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Posted 02 July 2013 - 08:50 AM

I have an HD500 (output set to COMBO PWR AMP) connected to a DT25 with L6 link. I know that if I create a patch with a single amp model that by default it will get reproduced on the DT25 channel A, and if I choose NO AMP, then by default it will swap to DT25 channel B. If I create a patch with 2 amp models, one on path A and one on path B, then the amp on path A gets reproduced on DT25 channel A, and the amp on path B seems to get blended in to the overall sound, but even if I choose a full amp model with default cab sim on path B, it just does not sound like it should do - it seems to be a poor fizzy version rather than a full rich version that I would expect. Now I know that having only one DT25 amp that the path B amp cannot be realised within the DT25 because it is realising the path A amp, however, I did think that it would take the entire modelled sound of the path B amp plus cab sim and blend with the "real" amp on path A. Is path B creating a true modelled sound but sounding bad because output is set to COMBO PWR AMP instead of STUDIO DIRECT? Or is it bad because a single DT25 isn't designed to handle a patch with two amp models? Or something else? So what is actually happening in this scenario?


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#2 phil_m

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Posted 02 July 2013 - 09:07 AM

You'd probably want to stick with using the PRE models for the amp in path B as well as in A. What you're doing is essentially sending everything from the left and right outputs of the POD to the DT25. The DT-25's power section can only be set to one configuration at a time, though, so you have to choose which one sounds best with what you're doing.


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#3 edstar1960

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Posted 02 July 2013 - 09:52 AM

Thanks for the reply Phil.  I chose the PRE model for path A as the firmware will decide appropriate physical power section on DT25.  I chose a FULL model on path B because I thought it will have no effect on what is physically happening on the amp - therefore a full model would be best rather than a mismatched PRE model.  But I guess what I really need to know is what the firmware does in such a situation and then I can make an informed choice about what to do.  Obviously having two DT25 amps would enable me to have two amp paths correctly modelled and realised on two physical amps, as long as I set up the DT25 routing options correctly on the HD500.  It may be that trying to use two paths when you only have one DT25 is best avoided because the system is not designed to handle it but it could be that there is a way to get some usable tone out of it - but for that I need to understand what the firmware tries to do in this situation or whether it just ignores it or if it does something else.  It certainly is creating an extra sound but not what I expected.  I thought it would ignore the path B model but I was wrong - it does process it but I am not sure what exactly it is doing with it.  Can you or anyone else shed some light on the processing in this scenario?  Many thanks.


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#4 phil_m

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Posted 02 July 2013 - 10:04 AM   Best Answer

The power amp setting on the DT-25 (topology, class, pentode/triode) defaults to match whatever amp you have in path A when you first select that amp, but they can be set to whatever you want them to be. If you put an amp model in path B, the power amp setting on the DT-25 won't match the amp you bring up (well it might not - you could use an amp model with similar defaults), but it's still being sent through the DT-25's power amp. So you're essentially blending two preamps signals to send through one power amp. You have to decide how you want the power amp configured.

 

If you want the DT-25 to completely ignore Path B, you'd have to set that in the L6 link settings page. Under the audio portion, you can select what you want sent to each DT-25 - it can be the left and right output (this is default), Amp A, Amp B, or Amp A/B. With just one DT-25, you're probably OK just leaving it left and right, but everything you put in the tone will show up at the DT-25.


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#5 edstar1960

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Posted 02 July 2013 - 10:48 AM

Thanks for the clarification Phil.  I will experiment some more to see if I can get a usable dual amp patch with a single DT25.


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