Need a modern Class A monoblock, preferably half or compact chassis

@atmasphere decooney Isn’t it more about the sound rather than the class of operation?

Great question and I use to think so. Now I’m not quite certain any more. I was exposed to new doors through a local tech friend who use to work for Threshold. He’s still repairing and upgrading amps. Past 45 year most of my SS amps were all formerly Class A/AB. My current SS amp was re-configured last summer from Class A/AB 180w to pure Class A 50w, transformer retapped and circuit reconfigurations and such as strongly recommended. I went for it. Glad i did.

Pure Class A now, same amp reconfigured I notice the following benefits in pure Class A for whatever reasons. 

1. Smoother sound, a little more texture

2. Better separation of instruments. Oddly closer to tube in a way

3. New layering is present I do not recall hearing prior

4. More to the bottom end it seems, not imagining this

5. Weighs less now, easier to lift - just kidding, lol.

I like this reconfigured SS amp so much i now want to try the same but in pure class A monos. This is what I’m going off of. I still have my other mono tube amps that i rotate in/out.

1. Smoother sound, a little more texture

2. Better separation of instruments. Oddly closer to tube in a way

3. New layering is present I do not recall hearing prior

4. More to the bottom end it seems, not imagining this

5. Weighs less now, easier to lift - just kidding, lol.

@decooney It seems the above, which seems important to you, is your answer. But that doesn't come from the class of operation so much as whether the amp is competent. As an example there are class D amps out there now that easily challenge the best of what class A has to offer.

Thanks Ralph @atmasphere for the note. Got it.  Yes, I try to read all of the reviews on all GaN and Class D amps, including reviews and feedback about yours too. Great progress on yours. Maybe I'll get a chance to hear them at a show some day.

Do you have any future plans to show your Class D amps paired up with speakers a bit larger and more demanding than Fritz' little gems?

Another possibility could be ModWright's new KW99 mono amps. They are rated @ 100w/8ohms - 200w/4ohms and are heavily biased into class A. I bought a pair 6 months ago and am very pleased with them. They work exceptionally well driving my Tidal Piano Cera speakers and were good with my KEF R7 Metas in another system. Like all amps, they display better synergy with some speakers than others. They work well with all of the four preamps I have. They are fully competitive with the PS Audio M1200 and Luxman m700u amps I also own but have that class A sound that distinguishes them from the others. Michael Lavorgna's "Twittering Machines" website has the only professional review posted I'm aware of.  

Do you have any future plans to show your Class D amps paired up with speakers a bit larger and more demanding than Fritz' little gems?

@decooney We showed with the Caladan open baffle speakers at AXPONA last year. We're not sure what the next show we will do yet.