Recommend me a tube integrated amplifier

I second @larryi and would recommend the Synthesis A40. I have Audio Note ANE SP HE speakers and the synergy is amazing. Feel free to message me if you want additional insight. 
 

John

Black Ice (formerly Jolida) makes GREAT amps...I used one for years. One of the best tube amp deals out there.

Wow - had errands to run yesterday afternoon and came back to all these replies! 

Thanks for all the great suggestions - I'll be parsing thru these.

I get/understand that subs are a high level impedance load to an amp and 'should' not be an issue, but I specifically asked about that because of a comment I read about the Luxman SQ-N150 saying do NOT use speaker level runs.  

As for my interconnects and speaker cables, I've run thru the gamut of MIT, AQ, Kimber, Analysis, etc.  And I currently settled on good synergy with AQ Jaguars for interconnects and Kimber 8VS bi-wire for speaker runs.

The K's are set up in a medium sized family room off the walls by 6ft and 3ft from side walls and they throw a vg soundstage.  Paired with the Luxman, they are SO relaxed and open sounding with amazing clarity.  

So what am I looking for?  I really can't complain at all - just curious about 'different' and put my toe in the tube tub.  If it ain't my thing - no biggy - I'll just flip it back to the pool for someone else. Maybe it'll be magic - won't know until I give it a whirl.

I believe a leben CS300X is right up your alley and man does it sound great.

I can also heartfully recommend an air tight ATM1 used. Both the amps can be had in your budget and sound glorious. The only downside is that they don't have preout for subs. But I have tried the speakers level connection to my Zu Subs and it worked great 

I highly recommend @aricaudio   https://aricaudio.com/tube-gear/
Aric worked with me via phone calls and 50 plus emails to help me select some tube amps.

i now switch between his 300b PSET and a Luxman M10X using his Motherload XL tube preamp. 
‘I have 92.5 db sensitive speakers at the moment.

At the very least give him a call because he will give you some professional advice.