The main difference is the position of the volume knob.
The only person who can decide which is better: low or high output.. is YOU listening to the earphones both ways and YOU deciding: "I like this position better".
That is it.
The theoretical tradeoffs are more dynamic vs lower noise floor. All dependent on the way the volume control responds at different settings.
No one else can decide for you what you would like better.
For MY headamp a Rudistor RPX333mk2 and my headphones, Sennheiser HD800 i like the lower level output better.
The only person who can decide which is better: low or high output.. is YOU listening to the earphones both ways and YOU deciding: "I like this position better".
That is it.
The theoretical tradeoffs are more dynamic vs lower noise floor. All dependent on the way the volume control responds at different settings.
No one else can decide for you what you would like better.
For MY headamp a Rudistor RPX333mk2 and my headphones, Sennheiser HD800 i like the lower level output better.