"clarify test conditions please! done while sleeping?
jw say wt is better than... they never wake up."
No done while listening , with out them being told anything about the equipment they are listening too.
We're talking abot quite obvious improvments here.
Extra octives of bass , higher sweeter more detailed treble.
Multiple vocal and instrumental lines when usualy one or two heared on lesser systems more realistic tone extra.
You dont need to be a scientist to hear this.