I suspect what I'll end up doing is (if I like the Orange as much as I hope) use that for loud use +/- attenuator.
For night-time, silent use through headphones I'll approximate the tone somehow with the HD500x and one of its amp models. Either that or I could take the direct out Orange signal from the attenuator in "Load" mode into the podHD (I think??) or into my Yamaha THR10.
Or mabye I'll prefer the DT/ Line 6 tone after all and sell the Orange....!
I'll post the outcome on this thread in the future so those that are interested may want to follow the topic.
Ok so a kind of interim report I guess for those that are interested... I've got an OR15H now and still have the DT25 combo. I'm using the DT's speakers as a cab. Thats partly to save cost in the short term and partly so the cab speakers are a controlled variable.
My experience so far is based at whats possible at low to medium home level tones. I've not been able to crank up to gig volume.
Firstly, most will be pleased to hear that the DT25 stands up very well overall. The tones that come naturally to the Orange's single channel from edge of breakupo clean to AC/DC to Slash level gain are all present more or less across the DT's amp models.
I'd actually say that (without attenuator use) at very low, whisper quiet volumes the DT maintains its articulation a bit better than the Orange. Thats with the DT in full tube mode and the master volume down low. Articulation and clarity are similar when an attenuator is used and I can turn the volume pot on the Orange up a bit.
The Orange has a nice simple interface and I'd say it reacts better to volume knob changes on my guitars (Strat. Les Paul, FLying V) than the DT, in general. That means one option on the Orange is setting to the most gain I'd ever need (about 1-2o'clock) and using the volume knob for rollback. That is equivalent to switching between the Hendrix, AC/DC, Slash and Metallica patches on my podHD.
No reverb or effects on the OR15 (obviously), but there is an effects loop for the podHD or pedals. The effects loop is tube powered. The DT25 probably trumps in this area for those that use a lot of effects as the L6 link is a clean, single lead interface.
The tones per gain level which I can acheive with the Orange amp alone (as listed above) are equivalent to relatively complicated patches on the DT25 where I've had to use simulated pedals to acheive the tone I want. For example, an Angus Young tone is native to the Orange with gain set at about 12o'clock whereas I need to use a "tube drive" pedal with a JTM45 to acheive a similar tone with podHD patches. I've also found that in general reverb is less of a necessity with the Orange which has a natural ambience that fills the room in a way that can only be replicated by reverb on the DT. So Orange wins in these regards for being simple and requiring less digital trickery.
I'd also say that overall the Orange base tone is slightly more organic. Difficult to quantify I know...just a tad more "3D" with slightly better note separation. These sort of benefits, I guess, are always cited by the tube camp in tube vs digital debates. Again, difficult to objectively quantify but theres a difference there.
Overall theres not a lot in it. The DT25 wins for versatility when paired with a podHD. The DT25 alone is closer to the OR15H in terms of versatility. But the Orange loses on connectivity as it requires more cables to attach to the podHD via its effects loop and would require a 4CM for boost pedals before the preamp.
The Orange's more organic tone wins purely on sound.... it's got that visceral rock mojo that seems to go with British tube amps at louder volume. In that respect it could be considered a bit more "fun" to plug and play. Overall a 10-20% better tone if I absolutely had to qualntify it.
Mabye its a draw.......I'm seriously considering holding on to the DT25 as well now.... If I could choose just one though it would probably be the Orange (plus my podHD500x). You only live once.