My interest is classic rock of the '60's, '70's, & '80's. Here's my journey:
Peavey Backstage 110 that came in my first guitar & amp package: It didn't sound right for any kind of distortion I liked. It does have that solid state buzz saw if you want it. I didn't.
Seymour Duncan 84-40 tube amp: It got me closer to what I wanted but at 40 watts it was just too difficult to push hard enough in my dorm/ apartment/ house to sound the way I wanted. It was better once I got a guitar w/ hot humbuckers but it still wasn't perfect. Too much power and too "Fendery".
Then I build my first amp, a 5 watt version of the JCM800. It was pretty near watt I wanted within the confines of the JCM800 design. Much of my favorite '80's music was made on a JCM800. It still didn't do the late 60's or early 70's as well as I would have liked but I could get very close. 5 Watts with an efficient speaker was plenty to play small live venues with our drummer. It had the right power level but mostly preamp distortion until the volumes got very loud. The rhythm guitarist in our band liked it so much I built a second for him.
Then I had a little detour: I build an Ampeg B15N (35 watts) for my wife to play her bass though. I don't play my guitar through it much but when I do it gives me buttery smooth cleans through it's 15" speaker. When I overdrive it rewards me with a very smooth distorted tone but it's far too loud for most of my guitar uses. If I played clean tones, which I don't, this would be a real contender.
Finally I built a 4 watt Trainwreck clone. This one covers all my dirty tones very well but the cleans are a challenge to get. They're in it, but they're not it's forte. This amp is much better suited to a lead style player. It's got a very smooth overdrive with just the right amount a grit. The only issue I have is I'm more of a rhythm player than a lead player so I don't think it's ideal for me. I think I need a little more punch for power chord playing. I'm pretty sure the push pull power amp added a lot of grit the single ended power amp of the 5 watt JCM was missing.
So where am I headed next? I've found amp building to be more about the journey rather than the destination. I've got salvaged transformers that will allow me to build things like a Hiwatt 504OL or a Marshall 18 Watt or a Supro Model 24 for a minimall cost. I'll likely build the Hiwatt first for the cleans. (I've always had a thing for the bands that use Hiwatts: Nazareth, Led Zep, Rush, Pink Floyd, etc.) If I ever need high volume dirt when I play my next theater sized gig (fat chance
) the Hiwatt can supply it. Most liikely I'll end up with an 18 watt clone by the time I'm "done" to give me the classic chunk of 60's and '70's power chords at a reasonable volume level for the gigging I do. When it comes to good tones for my bedroom playing I think I'll probably end up with a 2 watt version of a Marshall Plexi.