I will add just a few comments:
1) DNA-1 dimensions are 19W x 7H x 15D. Shipping weight is about 55 pounds.
2) DNA-2 shipping weight is about 92 pounds.
3) The DNA-2 is laid-out as a dual-mono amp. There is a single toroid transformer, but it has separate windings for each channel.
4) The DNA-2 is not a "balanced" amplifier, but it does include balanced inputs.
5) Parts quality is, in general, exactly the same for all DNA amps. The transistors are the same in ALL models. Deluxe versions include a slected set of premium-grade parts, including Cardas hardware, Caddock and Vishay resistors, and Harris soft-recovery diodes for the front-end circuitry.
6) I don't have the exact figure, but the total number of DNA-2 LAE (Limited Anniversary Edition) amps is under 100. The LAE model came with a special faceplate (thicker, Gold lettering), custom speaker connector system, thicker output circuit boards (.080" vs. .062"), a full complement of Vishay resistors, and a Cardas AC cord.
7) With a good AC cord, performance of the DNA-2 Deluxe is very similar to the LAE model (although the LAE still has a slight edge).
If you would like to discuss this further, please give me a call at 760-732-0352, 9-6 PST (California), M-F.
Best regards,
Steve McCormack, designer
McCormack Audio (www.McCormackAudio.com)
SMc Audio (www.SMcAudio.com)