Recommendations for a integrated amp

Late getting to this chain and surprised no one has mentioned Lyngdorf.  I bought a TDAI 2170 for my family room system, bc of the one box solution and built in processer (the room set-up is asymmetrical, furniture, etc....) but that's not where I'm going....when I compared it to my main/basement system (bel canto 3.7dac, SF Line 1, two Gold Note PA-10 amps in mono or BAT VK56), it performed equal to and in some respects better.  Some might say duh, vintagey vs STOA, but nevertheless I imagine the 3400 would suit your needs splendidly.  Can't say how it'd compare to Luxman or Krell which have much more of a following, but something to consider esp if you might benefit from digital processing for room adjustment and option of several different sounding set-ups.

btw paired with Sonus Faber Concertina 1s.  $500 used.  Haven't found stand mounts I enjoy more in the $2000 or less budget.  Wish I had the funds to compare to the new IVs but...  I bought the Lyngdorf with long term speaker upgrade in mind, but other audio priorities for now.

Thank you again for the recommendations. Since this is a hi res audio using Tidal, many mention the Hegel H390 and that is better in terms of sound and a better built in DAC. However, keeping it at 4k, would a Hegel H190 and a DAC/streamer be still better than a Hegel H390 alone? 

@highend64 

Audio Excellence in Canada has a youtube video comparing the H590 and H390. Here is link:

https://www.youtube.com/watch?v=qIsZOwpWMMA

Everything I’ve watched, read, suggest H390 is the warmer of the two, which is why I bought the H390.  

Fly HiFi in Auburn (east of Sac) has a "like new" used H590 for $4500. At that price, it might be well worth the drive.