Recommend me a Class A Integrated Amp (or sound like Class A amp)

I try to keep an open mind. Thankfully my speakers are light enough to carry around easily. I will probably audition Luxman 509X and see whether it would be good for me.

I’ve heard the Teac stack I mentioned above yesterday and I was really surprised at the sound despite AP-701 being just a class D. Sound is clear, balanced, and sweet, but a little laid back, but it could be just the Sonus Faber Lumina’s characteristic. I will bring my Riga to to the dealer to investigate further. The stack is priced at $4600 USD and seems like really bang for the buck. 

The KRELL K-300i is excellent. The internal DAC in the unit is worth the $1K because of the HDMI input alone. However, a few dedicated DACs under $1700 were preferred by me over the KRELL's internal DAC.

Since the KRELL is a warm and very smooth sounding unit. I preferred a DAC that was transparent. Maybe not for everyone but transparent DACs are not expensive these days. I am referring to great measuring DACs like a Topping D90LE | Benchmark DAC3B | Matrix Audio. 

Saying all of that in the final few months I had the K-300i I used the unit with the built-in network streamer (ROON READY) and the internal DAC. So convenient and very good sound. 

If I had your budget the PATHOS INPOL REMIX MKII would get my $...

I have a soft spot for Sugden ClassA amps. I have an IA-4 in the basement, and I just bought a pair of Sugden MPA-4 mono blocks for my main listing room. I sold my Sugden SPA-4 power amp and kept the LA-4 pre amp. I did however have a Kinki EX-M1 , and installed the Sparkos op amp kit chips. That was an amazing little amp with the upgrade. I was prepared to keep that until this IA-4 came up for sale at a great deal from my dealer.

@hilroy48

among solid state amps, i could not think of more different sounding amps than a sugden vs a kinki with sparkos... both nice in their own ways, but opposite sides of the spectrum