very interesting discussion of those OHM Tall 1000’s.

audiophiliac,, search youtube for:

'Ohm Walsh 1000 Sounds Like Being There'

The chart in the video indicates low sensitivity, and various models designed primarily for room size.

2 channel, low volume, that’s one thing, but at any volume, reserve power for instantaneous peaks will be good. IOW, my little 10wpc Luxman would drive them at low volume, (like it did the Wharfedale’s 87 sensitivity) but they would be wimped out by instant needs. It definitely does a better job with my current 91 sensitivity.

My prior unsolicited advice (because you said no HT, ugh). IF you ever try to get a small 5.0 system, you will need to find inefficient center and rear. i.e. My Klipsch Center is too efficient when used with my dbx soundfield 100’s, I had to seriously cut the center signal strength in the AVR to blend decently. The Bose VCS efficiency was an easier volume match to the dbx’s efficiency. that’s why I said: Klipsch, eh.

Recently sold our house and now residing in a nice apartment. System consolidated somewhat. Recently picked up a Simaudio Moon ACE that I was really impressed with. So much so that I then turned around and upgraded to the Simaudio Moon 340i D3PX which has a DAC and phonstage built in. The first 5 watts are class A which provides me the low level listening performance I was looking for with my Dynaudio Heritage Specials.

My compliments for not selling off your reference components!  A bit of the same situation myself.

Buchardt 400 speakers and amp. Made for smaller spaces 

I have no experience with Arcam, but this "Stereophile" Best of 2018 review intrigued me. Paricularly if the unit will be doing double-duty for home theater.  Check out the entire list if you really want to be confused! Good luck!