I've recorded a lot of keys, but I'm curious about my choices since they all have different outputs etc. I don't know much about how electronic keys structure their own gian. What is the most likely way to get a good sound. Direct to converters? Hi Z? Pre line level? If there are balance outs I suppose I would use them first ... but.... who knows? I have gobs of beautiful pre's (I won't name them all) so I can get any coloration I want - but these electronic beasts don't have a sound of their own they just have some composite of the electronics within. I suppose a pre would give me more options - but its a gain structure issue and impedance issue. What is likely to give me the best sound? (And please, I know I can use my ears, but I'd like to try the best options first). Thanks in advance.