Average| Source | Info |
|---|---|
| Stereophile | Stereophile: Feb 1998, vol 21, iss 2, Phillips |
| Stereophile | https://stereophile.com/headphones/408 |
| Audioholics | https://www.audioholics.com/reviews/speakers/headphones/sennheiser-hd-600-headphone-review |
| GoodCans | https://www.goodcans.com/HeadphoneReviews/bigreview.htm |
| Enjoy the Music | https://www.enjoythemusic.com/magazine/equipment/0702/sennheiserstafan.htm |
| SoundStage | https://www.soundstage.com/revequip/sennheiser_hd600.htm |
| TNT Audio | https://www.tnt-audio.com/ampli/headroom_e.html |
| Audio Video Revolution | https://www.audiorevolution.com/equip/sennheiserphones/index.html |
| Enjoy the Music | https://www.enjoythemusic.com/magazine/equipment/0502/headphonesurvey.htm |