SP G500 older (1997) balanced user adaptable, with the 'older' balance knob system.How does the SP G500 compare to the SP S550. Have had my SP mk20 and S550 for over a decade and though they work fine, I feel the need to change soon, out of boredom. Happy to hear your candid views. Deep 6 also piqued my interest.
SP S550 older (2001) balanced not user adjustable
Both share parts with the S600 and can be upgraded. I have upgraded a G500 to the new balance system and new s600 face, done similar with and S550.