Just a few thoughts.
Without having heard one so far, I would check if NAD has anything that would check most of the boxes. crutchfield does offer a return period so you can check how well it suits you and your speakers.
I am not sure if this is what you are looking for, but NAD D 3020V2 specifications mention...
"The sub output is equipped with a 100Hz low-pass crossover."
They also have NAD D 3045 model but check if it has what you want.
Both are well under $1200.
By the way, many people play speakers with impedance like yours with less than 100 W amplifiers with good results. Although Watts are Watts, do not get stuck on their number quite yet. Home trial will resolve your doubts, one way or another.
Without having heard one so far, I would check if NAD has anything that would check most of the boxes. crutchfield does offer a return period so you can check how well it suits you and your speakers.
I am not sure if this is what you are looking for, but NAD D 3020V2 specifications mention...
"The sub output is equipped with a 100Hz low-pass crossover."
They also have NAD D 3045 model but check if it has what you want.
Both are well under $1200.
By the way, many people play speakers with impedance like yours with less than 100 W amplifiers with good results. Although Watts are Watts, do not get stuck on their number quite yet. Home trial will resolve your doubts, one way or another.