Average| Source | Info |
|---|---|
| Stereophile | Stereophile: Jul 1997, vol 20, iss 7, Fremer and Reina |
| Stereophile | https://stereophile.com/phonopreamps/797ear |
| Audiofile AV | https://sites.thestar.com.my/audio/story.asp?file=/1998/6/25ear |
| Stereo Times | https://stereotimes.com/amp120202.shtml |
| Audiophilia | https://www.audiophilia.com/hardware/ear834p.htm |
| SoundStage | https://www.soundstage.com/revequip/tony02.htm |
| Audiophile Audition | https://www.audaud.com/audaud/OCT02/EQUIP/equip3OCT02.html |
| Stereophile | Stereophile: Jan 2005, vol 28, iss 1, Reina |