I've heard lots of amps - esp tubed with lots of THD, that can sound warm, sweet, or smudgy depending on how much THD they have. Still they do fine with simple frequency response charts. I can recall a number of amps that are flat with almost no THD - such as a Crown IC 150, which are brutal to actually listen to. Then when you consider pre-amps, input impedance, transducers.... the entire area tends not to lend itself to absolute statements IMO. I have a Gungnir 1, which sounded when I first heard it like the ARC flagship from about 2002 - all 20k of it, and also faced a number of competitors I put in front of it in 2015. I sold my top notch vinyl playback and a very large vinyl collection because it did so well in demo. It isn't as bright as most DAC's, but still has a huge amount of detail - from pp to fff. It doesn't have the nagging brightness of DAC's with SABRE chips - yet has a wonderful treble. Soundstage and low level details not as good as the Yggy - but that's a $1k more. Gungnir 1 has better bass impact than the Yggy however. I've bought equipment since 1974 because it sounds like music (ear educated by fathers Quad ESL's and the BSO) that I could afford at the time. Did you have the Gungnir or Yggy in your home system? How did you compare them to equipment you know?