"ScottW" said:

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

Hmmmm........a cathode follower.
Looks somewhat like the Musical Fidelity X10D, which can be had for
less than $100 if you look carefully. And there's a different circuit
in that.

I'm not particularly fond of the sound of cathode followers.
If necessary, I use the Loftin-White CF circuit which requires 2
triodes per channel.

Anyway, the price of 340 AUS$ or even 410 with the Nirvana upgrade
(wazzit?) looks a bit steep to me.
For this amount (ca. 300 US$) you should be able to get a good preamp
kit I think.

But that's just my opinion, don't let me stand in the way of your
plans ;-)

--
Sander deWaal
"SOA of a KT88? Sufficient."