Is a high Amazon star rating enough to trust a subwoofer?

No. Several picks here, including the Klipsch R-12SW (4.8 stars across thousands of reviews) and Polk PSW10 (4.7 across 15,000+), carry stellar Amazon averages that high-trust community reviewers partly contradict, citing boominess or loose bass. We treat the star average as one signal and cross-check it against testing-oriented and specialist-community sources.