Hi everyone,
I've just purchased a second hand Zen Triode Amp from Ebay, model number on the bottom says Se84cspw, it appears to be a preamp as I can't see any speaker binding posts.  I have been unable to find out anything about it as the numbers only appear to correspond to a Zen triode SET amp.  I'm bitterley disappointed, when I did my research I thought I was purchasing the SET amp.  Is it a preamp and how good is it?

If that's it, the ad is labeled preamp though the way that the letters are arranged in the model name ARE misleading.

An "SE84 CS" is a Select power amplifier.  An "SE84 CSP" is the preamp pictured.  I don't know what an "SE84 cs pw" is. . . .

The CSP preamp is a decent preamp. It was redesigned a year or two after its introduction, quite radically, and became the CSP2 preamp/headphone amplifier.