590axii in the house

@bgm11, you chose wisely. As a fellow owner, I can certainly relate to your excitement. One thing that I highly recommend is to swap the stock power cord with something nicer. I've tried Cerious Technologies Graphene and Audio Envy power cords and both made a huge difference in sound. Try it and you'll be surprised by how much more this amp can deliver.

Another thing to note is that, despite its class A rating up to 30 watts, the amp is fairly neutral, maybe a smidge on the warm side but barely so. This is good because speaker pairing gets a bit easier. I don't know your budget but Sonus Fabers tend to pair well. Look at their Olympica line, either the previous models or the new Novas. I also heard the amp with Harbeth SHL5+, and the sound was amazing.

The Luxman 590 ax2 is very good and nice looking with the meters ,
for overall purity ,accuracy of the musical signal I found the latest Coda integrated a fantastic Best Buy at $6500 retail and. Will easily meet or beat any 
integrated in the $10k and under range ,just look under the hood ,and with the V1
option,3  to choose from. 18 first watts into pure class A,  then 150-300 wpc
Built like a tank a 3k transformer , and over 80 k in capacitance ,a totally seperate Amplifier ,and pure class A preamp all under the hood and a solid 10 year warranty, 5 year transferrable.

@audioman58 in your opinion, how big is the performance gap between the latest version of Coda CSIB and the previous one?

As of  mid 2019 I. Believe the latest FETs much lower THD 
and a couple other things ,I bought the best poly cap out there for the preamp coupling section from VH audio their new Odam  caps , which make anything with them better still.  , theamp rakes a huge 16 amp slow blow fuse 
for the 🍊 fuse. Which is on the list. And can push 120 amps  for short bursts.

I only have an old pair of Paradigms that I had to connect to get some listening in.

You clearly need some better speakers than that !