MusicalFidelity X10D Tube Buffer ,any good ?

Worth noting also Musical Fidelity are just about to introduce a newer version of the x-10d.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

One purpose of this tube buffer is to add an extra feedback. When there's a lack of such it will definitely make responce more flat and linear. Certainly it will decrease distortions as well.

If you already have a tube in the line, I wouldn't think you'd need to bother with the x10d at all.

In the past it did not work for me.