If you're looking for the Best Live Jazz That's Ever Been Played, then Pawnshop is not for you.
Pawnshop is a remarkable document of the best players in Sweden on a given night at a given club. If you can start from that premise and imagine yourself a tourist who happened to wander into the pub on that winter night, you would feel pretty lucky to have caught it. The value of Pawnshop is that it puts you inside that pub.
Regarding the bass on this recording, if you pay attention you can hear solid-state distortion. It's because the bassist had a very small combo amp on stage so that he could be better heard, and the poor little thing was working a bit too hard.