The Marantz PM7000N should be on your shortlist. It checks every box on your requirements list, and then some. I bought one to 'hold me over' while deciding on a pre/power/DAC setup, and after I got it broken in, I kinda stopped looking (although a McIntosh MA252 still tugs at my heartstrings, even if I would need an outboard DAC/Streamer). It drives my LS-50s, my Maggie MMGs, and my Monitor Audio Silver 300 7Gs just fine, as it delivers about 90W/Ch into 4 Ohms. As for headphones, its headphone amp likewise drives my HiFiman Sundaras just fine. I could go on about the DAC and streaming, and the HEOS app, the phono stage, but just check it out. As for the 40N, it's even more of the above, and 2X the cost at $2500, so its well over your $1800 budget.
Integrated Amp Shopping Decisions
Looking to replace my 1987 NAD 1240 preamp and Adcom 535ll. They have served me well for years but are now both very long in the tooth and probably time for caps but not interested in investing as it would be a poor investment to update them. So I am looking to go integrated. Have a Technics 1210GR and Music Hall 7 so vinyl is a given. Also need USB for my Dead flac files. So my needs are decent MM phone preamp, USB and can run either RCA or coax out from my Rotel Tribute CD. Don't really need Bluetooth. Preferable to have tone controls. I am looking at a new speaker purchase which may likely be Wharfedale Lintons or Evos. Price point around $1800 max.
So, I have a list of possibles. Cambridge CXA81 but no tone controls or phonestage so not sure about this one, Parasound HINT6 preowned puts me $1800 (Its got the phono and DAC, ) Bel Canto C5i gives me phono and DAC (if I can find preowned) Rogue Sphinx (plus add Schitt Mani DAC) Musical Fidelity M5si (preowned), Yamaha S801 gets good reviews but lower price scares me. Any contenders I am missing? Thoughts?