I mean... If you can get some sort of IEM rig, a headless bass and your preamp is more than enough. Ditto for live rigs with PA support.
If you need an amp, the Trace elliot elf and warwick gnome have a very small form factor and might be enough for rehearsals.
If you need an amp, the Trace elliot elf and warwick gnome have a very small form factor and might be enough for rehearsals.