$1600. preamp


for $1600. would you buy a manley shrimp?  why not? what else then?
dpm2340
I Own a Denon 7.2 receiver. I am using it for a pre.  I have an st100 Rogue amp. What difference would  a nice pre make?
Used DeHavilland Ultraverve. For even less, Van Alstine T8+ or Fet Valve, used Bryston BP20, 25. Have had good experiences with all of these.