Average| Source | Info |
|---|---|
| Stereophile | Stereophile: Nov 2000, vol 23, iss 11, Rubinson |
| Stereophile | https://stereophile.com/solidpoweramps/545 |
| Absolute Sound | Absolute Sound: Feb 2002, vol 20, iss 134, Harley |
| Secrets of HT & HiFi | https://www.hometheaterhifi.com/volume_8_3/mccormack-audio-dna-225-power-amplifier-7-2001.html |
| Audiophile Audition | https://www.audaud.com/audaud/SEP01/EQUIP/equip2SEP01.html |