Similar problem here maybe you could answer and help me.
I am using dual amp setup for years, usually involving AC30 and an other fender-type amp.
So now that I have DT25 and HD500, my idea is to use that combo via L6-link and in the same time 1/4" right audio out of HD500 to my secondary fender-type amp.
No problem so far, I configured DT25-HD500 the right way. AES/EBU cable - hd500 puts itself in a "combo power amp" mode and there is the problem.
It sends that signal out of the 1/4" audio out to my other amp. While DT sounds better, second amp sounds worse.
I can manually switch "combo power amp" to "studio/direct" and it stays that way until another power-up but I am not sure is this a viable solution?
I have tried this for a few minutes yesterday and will do more tests today so I am not fully sure yet what this does to DT25 sound and the other amp signal-wise.
But it is different for sure.
I use HD500 as a FX only device as I have always done which defaults DT25 to channel B (where I have uploaded the amps I like). That is fine for this application.
HD500 fx loop is full with other pedals so it is not an option.
So far I have concluded the following:
I can use DT25+other amp as a regular amps without L6 link if I really have to, the way I have for years. Some FX to line A, some to line B outputs, works fine.
But I have noticed the sound of DT25 is noticeably better using L6 link (which is logical since it uses one AD conversion stage less) and I would like to use it that way if possible.
The questions:
1. Is the only proper way to use single DT25 (with HD500 via L6 link) with another secondary amp to use another DT25 or I could combine DT25 and some other non-DT amp via audio out as I would like?
2. What happens internally DT25-HD500-via L6-link combo when I manually override "combo power amp" mode with the "studio/direct" mode? Is this ok or this would change the DT sound the wrong way? And the regular 1/4" unbalanced output for other non-DT amp?
Or the only way is to use it this way is without L6 link, just like a regular amp as I concluded even though the sound is not on the same level as L6 link?
I do want the best sound possible so it is a big issue.
And I do use HD500 preamps to single DT25 amp via L6 link for some other scenarios, so it is not wasted but that is another story :)
Thanks!