Last sunday i played Tyros4 using Stage PAS300 on stage.I used headphones output for connecting to Stage PAS 300(L and R) keyboard jacks.The sound is OK but again when i tried using Line out jacks of Tyros4,the sound is some what dull.I think the output gain of headphones is higher than Line level ouputs.
So what compressor settings i have to use for line outputs of Tyros4 to make gain same like headphones output?Please help.

Thanks,
Sunny.