After many attempts, I got something not too bad ... Two extreme stratos mono, SP 16 preamp audiresearch, CD-tube Yaqin SD 32 A, JBL studio monitor 4435, or INFINITY KAPPA 9a ... I also use a 2 nd system, with a tube amp Yaqin MS 88 B ... and shall proceed as a drive on a converter pmdt 3D CAD LAB 2000, 24/96, and also my little cambridge 640 cd cv 2, but it is not up to his companions ... later, I will seek a "very good" cd ... the ultimate weapon ...