My second Sandberg bass, the first 5-string. It's just as good as the first one (a 4-string California): the build quality is exceptional. Easy to play, manufactured with stunning precision and delivered with perfect action and intonation. The output is strong and the quality of the sound is amazing - at least to my ears.
I only use it in passive mode - I feel no need to tweak the sound - so its active mode is not something I will comment on. Another reviewer criticised the lack of mid control and that might be a factor to consider.