Average| Source | Info |
|---|---|
| Sound & Vision | https://www.soundandvisionmag.com/article.asp?article_id=663&page_number=1 |
| What Home Cinema Online | https://www.homecinemachoice.com/cgi-bin/displayreview.php?reviewid=5472 |
| Technofile | https://www.technofile.com/articles/subwoofers.html |
| Home Theater & Sound | https://www.hometheatersound.com/equipment/psb_t65_c60_s50_subsonic_6i.htm |
| Home Theater Magazine | https://www.hometheatermag.com/loudspeakers/87/ |
| Ultimate AV | https://www.ultimateavmag.com/speakersystems/1204psb/ |