Average| Source | Info |
|---|---|
| Stereophile | Stereophile: May 2007, vol 30, iss 5, Atkinson |
| Stereophile | https://stereophile.com/standloudspeakers/507psb |
| Stereophile | Stereophile: Sep 2007, vol 30, iss 9, Phillips |
| Audiofile AV | https://sites.thestar.com.my/audio/story.asp?file=/2007/9/5/audiofile/03psb |
| Secrets of HT & HiFi | https://www.hometheaterhifi.com/volume_13_4/psb-alpha-t1-c1-b1-5i-speakers-12-2006.html |
| Home Theater Magazine | https://www.hometheatermag.com/subsatloudspeakers/207psb |
| SoundStage | https://www.soundstage.com/revequip/psb_alpha_b1.htm |
| GoodSound | https://www.goodsound.com/equipment/psb_alpha_b1.htm |