Anyone away for 8 years may have had changes in their sonic preferences. All gear has plusses and minuses, just depends on individual preferences and what features/factors are important to you.
The pluses to the D800/D800+ is that they seem (to many) to be "Goldilocks" heads - they aren't radically voices one way or another, and you can push the tone around a fair amount, particularly with the 800+. Also the customer service is second to none. Downside is they are a bit more expensive than some other choices, particularly if you're not in the US.
GK, to me, have a pretty strong baked-in "edge" to them. When I owned/gigged them, I often was cutting high and high mids pretty significantly. You either dig that or you don't.
The Aguilar TH500 is another amp with a pretty baked-in sound, again, in my experience on gigs. If you like the more vintage chewy/woolly low-mid thickness, then it is a great amp. I haven't played an AG700 but I did like the AG500 back in the day when I had it on backlines.
I wouldn't touch Markbass again with a 10' pole - I had a bad CS experience, won't go back, particularly since there are superior products and CS around. YMMV.
I gigged some of the TC heads. Weren't my cup of tea - the BG seemed a bit thin to me and the RH were just fussy. Or I'm cranky.
I've never owned Ampeg but certainly had them a lot in various backlines. I usually can get what for my taste is an "ok" sound, never a "love it" sound. Again, ymmv. That includes SVTs. Heresy I know
All of these opinions also are driven by an individual's technique, basses, and the gigs they play. Lots of good choices these days.
The pluses to the D800/D800+ is that they seem (to many) to be "Goldilocks" heads - they aren't radically voices one way or another, and you can push the tone around a fair amount, particularly with the 800+. Also the customer service is second to none. Downside is they are a bit more expensive than some other choices, particularly if you're not in the US.
GK, to me, have a pretty strong baked-in "edge" to them. When I owned/gigged them, I often was cutting high and high mids pretty significantly. You either dig that or you don't.
The Aguilar TH500 is another amp with a pretty baked-in sound, again, in my experience on gigs. If you like the more vintage chewy/woolly low-mid thickness, then it is a great amp. I haven't played an AG700 but I did like the AG500 back in the day when I had it on backlines.
I wouldn't touch Markbass again with a 10' pole - I had a bad CS experience, won't go back, particularly since there are superior products and CS around. YMMV.
I gigged some of the TC heads. Weren't my cup of tea - the BG seemed a bit thin to me and the RH were just fussy. Or I'm cranky.
I've never owned Ampeg but certainly had them a lot in various backlines. I usually can get what for my taste is an "ok" sound, never a "love it" sound. Again, ymmv. That includes SVTs. Heresy I know
All of these opinions also are driven by an individual's technique, basses, and the gigs they play. Lots of good choices these days.