Lumidn D2 and help with amp upgrade/assement please?

Hi all, seeking assistance please,

currently running a Bluesound directly into  a power amp MCA 225 GEN 2 speakers are Sonus Faber Lumina V

the amp replaced a Hegel integrated  H95 and I did not notice much of difference outside of increased bass

I recently added a preamplifier, Topping Pre 90 and the added gain is making this amp shine but the noisefloor has increased substantially

I'm looking to upgrade to a Lumin D2 and balanced amp (either power or integrated) and eliminate the Topping

a few  questions please;

A)do you think the Lumin D2 with its Leedh Volume processing can directly drive my current amp without the Topping

B)do you think my plan to go fully balanced Lumin D2 to pending balanced amp makes more sense? (again without the topping)

C)what is better for my solution , integrated or power amp

I have my eye on a couple of used amps at the moment, Yamaha As-2200 integrated and Ayre V5-XE power amp