I use an AER Amp One (200w, 1x10" speaker) and Amp Three (200w, 2x8" speakers).
Not cheap, but they are small, light, powerful and play nice with Alembic electronics.
I use the the Amp Three alone for non-Series basses and both together for Series basses (stereo). If I need more "muscle", I either feed the PA with an XLR line out from the rear panel, or add a QSC K-12 powered monitor fed from the rear panel by a standard cable equipped with 1/4" jacks.
Yeah, I know there are more complex and powerful rigs out there that probably offer slightly better sound quality, but they come with a price: weight, stage footprint and set-up time.
Since all of my recent rehearsals and gigs have required a minimalist approach, the AER amps have become my "go to" rig.
Here is the Amp Three (foreground in front of guitarist's pedalboard) at a recent rehearsal: