Perhaps....
@noble100 "There’s been very good class D amps on the market for at least the last 5 years, maybe longer...."
I owned NC1200 amplifiers and while they sounded ok, I also owned three sets of conventional Class A or AB amplifiers at the time that I liked better. A couple of reviewers have mentioned traits that I heard with those Class D amplifiers (i.e., read the Mono & Stereo review of the Kalugas) and I ultimately couldn't live with them. The bass sounded good at first but it was unnaturally over-damped and not what I hear from live music. The bass from my Class A Claytons sound way better to me and even better defined without the truncated over-damping. I will only speak to the Class D amplifiers I have owned but they are among the amps you listed as "very good."
Back to transformers, I am currently having some amps built and they will have large Plitron low noise toroids. From what I hear, Plitron has the noise issue mostly worked out on their low-noise version transformers. The amplifier designer also uses heavy metal plates and damped stand-offs to mount the transformers so...fingers crossed. My Claytons have two large toroids in each monoblock and they are pretty quiet so I guess I am lucky.