OK - recommendations on cpu speakers passive

i have some vintage HI-FI gear sitting next to my Imac that i wind up using to cpu audio - not only listenting when I'm working, ubt for some critical listening when iv'e done recordings of local choirs/orchestras.

My desk has a shelf that is ear heigh and it approx 4' wide - so clearly a speaker that can image at 4' between the pair, with the listener about 3-4' back is what i need.

my preamp is a Mac C11 and i use a MC240 poweramp.
I have an apogee dac so i dont want the speaker to be the limiting factor.

I DO own a set of JBL 4311b which have been rebuilt - but my prior experience was that I was too close for them to really sing as they can.

Any thoughts on what I shoud look for?

Thanks

Aaron