Hi Doug99,
I used to use the Edge NL-10 amp in my system, and still have high regard for it. For details take a look here on the GON for details regarding its performance.
For my tastes I finally moved on to the Pass Labs X-series and then to the XA and finally the XA.5 series that I liked better then the Edge NL-10 amp. However, just today on the website Enjoy The Music, Tom Lyle just reviewed the new Edge 10.2, which no longer uses the Laser Bias Circuitry, and went gaga over its' performance. So, take a look at his review for details about why he loved this amp.