My 92 Q5 came new with a bart setup, which I became unsatisfied with and wanted something different. Tried a Demeter pre first, then had a Sadowsky pre installed, after that changed pickups to Sadowsky soaps and that stayed for years. Decided too much highs/lows and not enough mids and tried a ACG-East Eq02 pre which was more like what I wanted but just bought new EMG 40DCs and BQS system, and am finally happy with the sound again.
Still my main bass after 20 years although I've owned a ton more. I dig the EMG sound on it, but I've heard old recordings I did 20 years ago with the original Bart setup and although a bit tamer still a great sound. I'd go Bart if you want a well rounded player, EMG for the modern edge sound