I'm enjoying a Victory Hop Devil Ale, in celebration as I write this. I've had a truly remarkable expericience today.
I'm 53. I've listened to a lot of music over the years. My interests have run a wide gambit. I've been an amature musician most of my life, too. I think I have some idea of what what good music sounds like.
I purchased a Decware SE84ZS 2 or 3 months ago. I talked Dave into selling it in kit form. I had the hots to build something and this seemed like the perfect thing for me. I don't have much knowledge in electronics but I can read schematics and I'm reasonably handy.
The little amp has always been a challange in my system. (See the thread called "Dazed and Confuzed" in the Zen Triode support section.) It sounded good but I always felt like I wasn't really getting what all the rave was about. I replaced old corroded speaker cables. That helped. I discovered problems with my speakers. (Original Klipshe Forte) I replaced tweeter diaghragms. Then, I got motivated to upgrade the crossovers and built custom crossovers with Hovland caps. Then I found a buzzing sound in one of the mid range horns. I rebuilt it myself and fixed that problem. (The diaphragms are a bonded assembly and the glue dried out and failed.) Things got better, but the little amp just would not play very loud without audible, yet subtle distortion. It sounded pretty darned good but I still had doubts that the amp was everything people say it is. So, I just remained persistant and kept looking deeper into tweaks and fixes.
Then one day, things really went haywire. I turned on the amp and schreeching sounds were comming out of my speakers! I turned off the amp, and franticaly pulled the input cables. I found a burned resistor. Why? I talked to Dave and he said I probably had a shorted tube. He was right.
I put my old trusty Yamaha 100w/channel amp back into service while I waited for new tubes. It sure can play loud. But still, something was missing. All the notes were there. The soundstage seemed as wide as the room. No depth to it though. I was noticing that details were missing that the Zen amp had taught me were there. Hmmm.
I ordered a new pair of 6n15n-ev tubes and a new pair of 1K 2W resistors. They arrived yesterday and the amp was up and running only minutes later. Wow! I noticed things were different! What is going on?
The amp can play louder now. I can reach peaks of 100 dB at 1 meter. I can't hear any distortion. I usually turn in down to about 96 dB or maybe a tad lower. The stereo sounded better than before!
Then... (here comes the "ecstacy" part) today my wife and I sat down to listen for a spell. I put on Eric Clapton's "From the Cradle to the Grave." Something undescribable happened. The stereo disapeared! I've had my Klipsch speakers for many years but they have NEVER sounded this good! I was blown away by the experience. The music sounds better than anything I've ever experienced in my home. The stereo created the illusion of a live performance so well that I was freaking out! SERIOUSELY! I was getting choked up! I was nearly in tears! I am at a loss for words to describe how good it really sounds! My wife was very amazed too! (Bonus points!)
I had to put the music on pause. It was so overwhelming. I immediately called Decware and Dave picked up the phone! Just the man I hoped to talk to. I had to tell him what just happened. I almost could not speak... still blown away by the experience. He seemed very happy to hear about my experience. He says that is what motivates him... the same kind of things happens to him, too.
I'm still a bit "high" from this experience. Now, I "get it"! This little SET amp is something you have to experience! It is difficult to describe. The music really is more real. Hi-fi is an illusion... the illusion of creating live music. The Decware SE84ZS creates this illusion better than anything I've ever heard. Some of my friends have some pretty high end stuff but this "freak out" experience never happened to me before like this. I've had some great moments during serious listening. However, this beats anything I've ever heard in my life!!!

If Dave was here, I would give him a big hug right now. I am gratefull that someone in this world is doing what he does and at a price that is reachable by the average 'Joe' like me. My hat is off to Dave!
I'm one happy guy!

KD in San Antonio
Oppo CD-970HD cd player (El cheapo but it works!)
SE84ZS Decware amp
Klipsche Fortes w/ custom crossovers