Advice from Audiogon family - best speaker $3k-$4k

He's going to be pushing the $3-4k budget with any Sonus Faber floor-stander even used.

And a lot of the other high quality floor-standers mentioned above.

Of course I recommend the speaker I have enjoyed for over a decade... Ohm Walsh 2000.  $3800 the pair, IIRC.  Does most things really well, and a few exceptionally well.

Sonus Faber makes great speakers.   The problem is that there are so many great speakers out there,  it's wise to listen to as many as you can if possible.

Ascend Acoustics Sierra tower with RAAL tweeter option is worth considering. 30 day trial and very nice people to work with.

1) Listen to as many speakers as you can.

2) Trust your ears

3) Be open minded. While at an audio dealer, be willing to demo other brands that are not on your list. You just might discover that what you're seeking is not currently on your radar.