NAD M12 + MDCBluOS-2 + MDC HDM-2

Perfect used condition NAD M12 preamp with BluOS-2 and HDM-2 MDC upgrades. This unit is fully loaded with NAD's (2) available upgrade cards for Hi-Res wireless streaming and 4k HDMI for both digital source input and 4k pass through. The upgrade cards are worth an extra $800 on top of the $3850 MSRP. I am the 2nd owner and used the preamp for about 1 month and added the HDM-2 card myself. I had purchased separate processors for surround sound and music with a JL Audio CR-1 active crossover to switch easily between both. I decided to forego them all in favor of a Lyngdorf MP-50. My loss is your gain. This is an excellent pre-amp/DAC with just about every analog and digital connectivity option possible. The only physical signs of use are on the insides of the included magnetic feet which are not visible at all when in use.  Buyer to pay shipping and Paypal fee. Will be shipped in original packaging with all original manufacturer accessories.