If you want to get the best sound out of MSB you should get their transport (which will be connected to DAC via pro I2S). Or... Wait a bit until they release Network Renderer Input. This thing will turn any MSB DAC into digital streamer (for only $1000).
If you connect MSB Analog to your transport via XLR you won't be able to hear all DAC's abilities!
By the way, CD-quality records sound excellent with Analog DAC and I see no reason to purchase it only for Hi-Res records. If you like the way Analog plays Hi-Res I see no reason why you won't like the way it plays CDs...