| Source | Info |
|---|---|
| Stereophile | Stereophile: Jun 1988, vol 11, iss 6, Norton |
| Stereophile | Stereophile: Jan 1995, vol 18, iss 1, Atkinson |
| Stereophile | https://stereophile.com/standloudspeakers/566 |
| Stereophile | Stereophile: Jun 1988, vol 11, iss 6, Norton and Various |