Nice idea and good results. I was googling for this kind of headamp after some reading on the lme drivers IC.
Panson, Could you post the complete schematic with values? About 4x gain and 100mA+ for each output transistor is very close to my needs.
I'm trying many different headphone amps this year
I will post the schematic here. It simply a power amplifier with smaller output devices. Attention was given to low noise.