Class D Integrated Amplifier Recommendations.

A great, but lesser known choice would be Arion Audio. Owner and designer Mike K. is very skilled. His Amps are very clean sounding, dynamic and extended into the low and high ends of the spectrum.

I have been running his S500 stereo model for 2 years now without a hiccup. Runs pretty cool, too. Arion also makes monoblocks and tube/ class D hybrid amps. All are a great value, IMHO.

I am thrilled with my Marantz Model 30 integrated amp.  Stereophile has a nice review and is a "2021, 2022 Recommended Class A" ...  Now my setup includes an A/B switch  (One Little Bear) that allows me to select this Class D amp OR a Class A SET all tube Integrated AMP driving one pair of  Cornwall speakers (it can actually drive 2 pairs of speakers).  Best of both worlds !  Solid State AMPs are just so much more practical.

I love the Marantz Ruby integrated. It has enough soul that I don’t miss my tube amps, runs cool, has plenty of power and is very well built.  I think it lacks a little aesthetic bling but that’s my only gripe.  

Take a look at Wyred4Sound’s integrateds. Good stuff in your price range.