Looking for ultimate listening experience. Price no object. Need inmates opinions. Current set up. XA SCD 9000 ES, Headroom max (2004),HD 600, ER4S SACD will soon be replaced by Esoteric UX-1, not that it makes a difference just want a universal player.

Looking for an amp for my SACD player currently have an old Headroom Supreme. Looking at either a Headroom Max ,Meier Prehead or something in that range. I have Sennheiser HD 600 with cardas cord (may get a pair of the 650) also have both etys ER4S and P's the (P's only used for traveling light )