JBL - Authentics 300 vs Sonos - Symfonisk Bookshelf (Gen 2)

The Authentics 300 is the clear pick on raw spec strength, leading by 20.1 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the Authentics 300 if you care most about output. The biggest gaps in its favor are output.

The Symfonisk Bookshelf (Gen 2) similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.

Both ship with comparable dolby atmos, matter / thread, so those specs don't separate the two — focus on the differences below.

Bottom line: the Authentics 300 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.