Question for SCD-1 and 777es owners.

I'm curious as to what, if anything, SCD-1 owners have done to improve Redbook performance of their players. Try to keep your recommendations reasonable, price wise (I can't afford the dcs Elgar). Power cord recommendations and cable recommendations are also welcome, but mostly I'm interested in seeing if folks are having great success with any outboard DACs, Stan Warren mods, etc. (I've heard the Levinson 360s works well, and that's about as high I would go price wise --under $4K used).

I'm reasonably satisfied with the Redbook straight out of the Sony, but I know some of you have done better. Please share your secrets!