I play an all tube Ampeg SVT 2 Pro. It's basically the rackmount version of the classic, but it has sliders. BUT the sliders have an on off switch, so if you don't want to use them, just de-press the EQ button, and you can just use the eq knobs that are on it. It's a great amp at any volume honestly.
For recording my bass was actually recorded direct in, and then re-amped into one of these:
The signal was run through a Tech 21 sansamp (no matter what amp you get, I recommend one of these, great pedal/DI), and some sort of overdrive pedal... I can't remember what pedal. But it actually sounded amazing! It was the same exact amp that was used on Saves The Day's record Sound the Alarm which has my favorite recorded bass tone ever I think. My record was mixed by the same producer that recorded it, so he made my bass sound as close to that as he could.
I have a lot of friends that have been using a solid state Ampeg SVT 350 or 450 and running a sansamp into it and it sounds just about as good as my all tube SVT2 so I would look into that setup too if I were you. Way cheaper, and way lighter! Also an Ampeg SVT 3 pro might be good for you too, solid state power amp with tube pre-amp, it has sliders but again I believe you can switch them on and off. I have a lot of friends that also play Gallien Kruger and have great things to say about them. I've heard bad things about the newer Acoustic amps. I've heard they were good in the 70's but the new ones are just budget amps made under that name so people that associate them with the 70's amps will buy them. I'm not a fan of the markbass amps I've played, though I know some people that do like them.