Too bad Stereophile and Soundstage have not measured the Blade or Muon.
But do you think you'll be able to actually hear the difference between +/-2dB vs +/-1dB vs +/-0.5dB?
The NHT Absolute Zero measures +/-0.9dB.
I certain don't think I hear any improvement at all going from +/-2.5dB (RBH SX-T1) to +/-1dB (KEF 201/2) or +/-0.9dB (NHT Absolute Zero). I actually think the +/-2.5dB RBH SX-T1 sound even clearer with more detail and resolution than both the 201/2 and Absolute Zero.
And how much volume do you need?
Well, anyway, we all have different perspectives, opinions, and priorities.