I am a great fan of McCormack products as well as the services of both Steve McCormack and Kris Jeter at SMc Audio. I have two listening systems, and both use Revised DNA 0.5 amps. One of my DNA 0.5 amps is Revision A with some additions from March of 2001, the other is a Gold +++ upgrade with most of the Platinum options. I also have a highly revised McCormack MLD preamp, a McCormack UDP-1 CD/DVD player and currently my McCormack Micro Phono Drive is in California with SMc Audio for a final upgrade. Like I said, I am a McCormack fan. I do have other electronic equipment in my systems, i.e., Ayre, Conrad Johnson, Audio Refinement, Janis, and of course have used many other respected manufacturer's equipment in the past. The speakers I use in both systems are audiophile demanding. That being said, I have continually gravitated back to McCormack gear because of the quality, service, performance, price point and the sound. Right from the get go the DNA 0.5 is a fantastic performer; the Deluxe is a definite step up, and the upgrade mods take these amps to a whole different level. I like the DNA series because of the various options they allow for the upgrade track. I have had my DNA amps since 1997! They are now all upgraded to todays latest standards. These amps are keepers. The DNA 0.5 demonstrates finesse, detail, imaging, emotion and is very fast responsive amplifier that all the while maintains the most precious element... musicality. The power output of the DNA is conservatively rated, and the amp has enough authority to handle most speaker loads. I would recommend the DNA 0.5 with little reservation if any. I believe you would be happy as well as having the option to upgrade. Just my thoughts.... not meant to be an advertisement.