Tonal balance is of utmost importance to me. If the bass is boomy, the highs accentuated or the mids recessed I can't even begin to listen. Higher mid anomolies are especially bothersome! It seems that when the tonal balance is off I'm constantly distracted by that imbalance and can't fully immerse myself into the music. Psycho-acoustical issues I suppose, a gross deviation from the natural acoustic?
After that it becomes a close call, everything matters and if any specific characteristic begins to annoy I have to fix it.
After that it becomes a close call, everything matters and if any specific characteristic begins to annoy I have to fix it.