It appears you may have stumbled upon one of those ‘accurate’ sounding DAC’s that are everything but musical :-)
+1 You have identified a common theme. It seems whenever an audio component is described as lean/clean/hyper detailed, it’s referred to as “accurate.” If it were truly accurate the music reproduction would be unfailingly and undeniably musically enticing and emotionally engaging. Real instruments have harmonic color, body, richness,vividness and full bodied tone. They are not thin, dry, sterile and analytical. This is not accurate this is inaccurate/synthetic.
Charles