Unfortunately, according to Stereophile, your speakers drop to 3.7 Ohms at 177Hz and you need a receiver with a 4 Ohm rating. This may have shortened the life of your HK AVR if it was one of their entry level models!
https://www.stereophile.com/content/psb-image-b25-loudspeaker-measurements
It is a perverse reality that the economies of scale favor a more complex AVR even though you only need a stereo receiver ... and a stereo amp is even worse. The only thing I found that qualifies is this one from Emotiva:
https://emotiva.com/collections/amps/products/a-100
It's shortcomings are only one input, no remote control, and no phono connections (so it really doesn't qualify).
Even with AVR's and using Accessories4Less (also my favorite for bang for the buck electronics),I could only find one match that included a phono input! On the positive, since it is a 5 channel unit, the power supply should be a little better than that of a very inexpensive ($250) stereo receiver!
https://www.accessories4less.com/make-a-store/item/denavrs640h/denon-avr-s640h-5.2-ch-x-75-watts-a/v-receiver-w/heos/1.html
Understand that this is a refurbished unit, but it is refurbished using guidelines approved by Denon (they provide the one year warranty). Buying from A4L has built a solid reputation among forum members as very rarely having problems (defective gear) and when they do, they always deal with the situation fairly!
One thing I would mention is I know you said that you would not connect a TV; however, since this is a modern AVR, I would recommend you hook up a tv temporarily so that you can go through the setup routine (which uses On Screen Display for providing directions). Hopefully you or a friend/family have a small one to connect to get things set up. You may not need them again, but the menu structure used to control all of the options of a modern AVR can get difficult without the ability to see more than one or two lines at a time (the display on front of the AVR).