Rackmount Power Amplifiers ~ ANY with noise suppression?

[Toppscore]

Hi. Before I waste to much time searching, do any rackmount
power amp manufacturers make amps with HUSH or ISP noise
reduction suppressor technology or features?

Makes sense to me, and would save rack space.
Front panel controls for the noise suppression levels management
BEFORE the signal goes on to the amplifier. What do you think?

Initial searching produces mostly rackmount NS results,
not power amps. Am I wasting my time, or, who makes one?

Thanks ahead of time.