DACs and amps are about flavor....colorations. I personally enjoy them. Tube amps, tube DACs, R2R...good flavors for me. Give me the second harmonic, give me a slow filter, NOS...I like colorations that make the experience feel more real.
If you want ultimate transparency then you can buy from Benchmark or even cheaper with something like Topping D90. Have it as the artists and sound engineers intended.
Almost all of us have issues with our rooms. Seeing a measurement of one's room is a gut check. If we put fully faithful equipment and speakers in our rooms, it will put a microscope on the flaws.
So what do most of us do? We buy speakers and equipment that flatters the sound instead of examining it. R2R is a good example. It is easier and more relaxing to listen to for music.