I run my Walkabout pre into the D800+ power amp which I believe is pretty much the same power section as the WD-800 (although the WD-800 may use mosfets to drive the class D power amp, @agedhorse can verify this). I found the best sounding combination was using the WA post everything DI into the FX return of the D800+. When using 2 cabs (in my case a Berg CN112 and CN212), I also run one cab off with the WA, and the other with the WA flavored D800+ power amp. This results in the best 800 (actually 965w) Walkabout I have heard to date. I wonder if a similar arrangement would work with the WA + WD-800 in this kind of set-up ?
I would imagine so. I have a D800 that I have tried it with and with good results, so same power section as the D800+. But the magic seems to be in the damping feature of the WD800. At low volumes, the low damping sounds really great, and at high volumes, the medium damping seems to retain the WA cleanish magic but with MORE volume. What I really seem to want is that new power section in my WA case, but you know what they say about wishes. I guess if I have to haul the WD around as a power amp section for more volume, it wouldn’t be the end of the world. Might set up an A/B pedal or something for two different tones.