McCormack DNA amp options....

I'm taking the upgrade plunge, or rocket. I just purchased two DNA-1 amps that were originally produced as mono-blocks and had them sent to SMc for the rev A+. My speakers are Eggleston Andras, which are power hungry, thus I chose the 1’s over the .5’s. It actually costs about the same to upgrade two 1's for mono rev A as it does to upgrade one 2 for rev A.

two DNA-1’s 1,500 (for two amps)
mono conversion 450 (per pair)
rev a upgrade 2,400 (for two amps)
total 4,350 (of course now you have to look at used Pass X-350’s and so on for this price)

one DNA-2 1,250
rev a upgrade 2,950
total 4,200

However, the difference between two .5’s and one 1 appears to be more substantial:
Two DNA- .5’s 1,000
Rev a upgrade 2,000
Mono conversion 450
Total 3,450

One DNA-1 750
Rev a upgrade 1,200
Total 1,950

Rather than upgrading your current .5, you can look for a used .5 rev a. I see there is one pending sale here on agon for 1,200.

For me, I’m very optimistic about a mono config's ability to better handle the low-end frequencies. Plus I admit, I just like the idea of two amps. Just thought I’d share my reasoning with your similar questions on options. Until I actually receive the amps, that’s all I can share. It’s a tough call to purchase a product and service/upgrade based solely on personal reviews and reputation. Crossing my fingers.

Zach,
You have received somer very good advice, the best of which was to call Steve McCormack at SMc. He is very accessible and helpful. Let us know how you make out.