A matched pair of the V5-OPA-SS operates with an dual single triode of a E88CC vacuum tube as output stage of my SONY CDP-XE270 CD player. The Burson audio opamps particulary works like an low impedance output buffer and to complete the circuit and behavior of the vacuum tube. The sonics of the complete circuit are more dynamicly and more warmth is in the perception. Also there is a low jitter clock IC applied to the CD player. The sum of all this hardware makes that this relative cheapass consumer CD-player, now performes more like high-end audio equipement.