I don't know whether your preamp is tube or not..sounds like it is. If so, I don't see any reason for the tube buffer. I have never heard one, but I was tempted to by its predecessor until I scored a line level Cary preamp here on audiogon (a very early model, but, still, Cary) for a price about the same as the buffer. Whatever the buffer does, a tube preamp does imho. Save up your money for something else!
Experience with Musical Fidelity X10V3 Tube Buffer
I'm condisering a tubed buffer output to my Onix 88 CDP. Was considering a Decware ZBox but have been reading about the Musical Fidelity X10V3. Has anyone had experiences with the X10V3 or the ZBox for that matter. Problems with devices? Improved CDP performance? Too much tube? My pre amp is a CJ PV12L. Thanks, Dave