MusicalFidelity X10D Tube Buffer ,any good ?

Appropriate for starter CD players or most DVD entry level players as it removes the common harshness in the highs and the midrange lushness is unmistakeable. But on swapping it out with higher end CD players with more capable internal DAC , the soundstage width narrows a bit. But generally will be an immediate improvement with most entry level cd players. Given the release a few years back it is still very capable to improve from stock on what is current.

Worth noting also Musical Fidelity are just about to introduce a newer version of the x-10d.

I think details should be on their web site.

Thanks Goroi and Ben. BTW, I am using a tube-drive CD player- Ah4000(Amperex7308x2,+Upsampling );just wonder if there is any sense of adding MusicalFidelity X10D Tube Buffer ? Should you(or anybody else) have additional opinion and suggestions I w'd be most happy to hear it .thanks
Simon