TAD to me sounds more like a Studio Speaker. Yes they are brilliant but does it make music? or are you trying to find faults into the recordings?
When I heard tad being paired with MSB Dacs, first thing came to my mind was......this sounds very much like the Quested Studio Speakers Accurate and brutal to the source. How much of this can you stand? 20 mins 1 hour 2 hours. I love the TAD Horns they can be very musical with the right OTL AMPS.