Recommend me a tube integrated amplifier

As long as the sub has a high level input, almost all amps will drive them from the speaker outputs. The sub HL inputs have very high impedence and do not load the amp. 

Anyone verify they can be connected speaker level to both speakers and a sub?

My amps of choice. 

https://www.octave.de/

All I can go by is what I’ve owned. My favorite in the under $5000 used is the one I still have and have no reason to move on which is the Audio Hungary A50i class A.

You can pick up a used one around little over $3000. Never seems to stumble no matter how complex the music is. Has big tight bass but I do use 2 rel subs due to using book shelf speakers. I listen to mostly jazz.

I replaced a CJ cav45 s2 with the AH. The CJ was a very nice amp for jazz but the AH just grabs you with that fast solid bass and very realistic class A sound. I run kt120’s and 150’s with vintage preamp tubes and am very satisfied with the results with AH. No desire to move on so far.

There is NO DOUBT about the magic,natural warmth,wonderous sound staging & imaging of a good tube amp BUT you can get the exact same thing from Class A Solid State..
Also the average price of a Matched & Balanced quad(4 tubes) of current production EL-34 tubes is around $200.00-$250.00,a Matched & Balanced Quad of KT88 around $300.00-$350.00 & that is buying from Ebay!Buying from a reputable dealer who stands behind their product will add even more $ to that price..Vintage NOS tubes all these repliers talking about?MULTIPLE HUNDREDS of $$$ TO MULTIPLE THOUSANDS of $$$!!!Figure on retubing power tubes EVERY 3000 hours!Oh sure,they will last longer BUT around 3000 hours they WILL start degrading & changing the tone & DON"T believe ANYONE’s BS about that not being true!

If you are handy you can try a kit build.  I reviwed two here

http://www.stereotimes.com/post/building-the-audio-note-kit-el-34-and-elekit-8900-integrated-amplifiers-by-john-hoffman/

jh