I am indeed asking about photostages/preamps that offer different curves than RIAA. I have some European pressings from some of the great orchestras and conductors of the 20th century that frankly sound awful with a standard RIAA curve...no bass, ear piercing cymbals, ect....as an avid classical music fan who seeks out artists of this era as examples to get us closer to the composer's intention (like when you can get an interpretation or student or two away from the original), I would like to be able to make these albums "listenable". Thanks for your continued options 'Goners!