How much of a difference would a Mcintosh C49 make over a NAD 658 preamp?

[Revelation]

I have a McIntosh MC152 amp and the NAD 658 preamp seems to work well with my system. I like that it has built in Blue OS, which works with Tidal and other streaming services. I am curious if the C49 would offer much improvement in sound quality over the 658 preamp or just different?
I have upgraded my phono preamp from the stock one in the NAD to a Parasound XRM phono preamp. It provides more clarity; the music is more up front and it offers more gain so the volume of my mm Cartridge is close to my CD and streaming volume.

Have any of you compared the C49 to something like the NAD 658 or Parasound P6 preamp?

 

[AcuDefTechGuy]

No improvement in SQ, but huge improvement in pride of ownership and aesthetics.

 

[BoredSysAdmin]

Judging by OP's post history, I think he must have gotten the same answer multiple times, yet another thread appears with a similar question.
The answer stays the same - if you want to improve SQ - start with speakers, room, and the source in this order.