Used audiophile preamp

 I’m looking for a used  audiophile preamp either solid state or tube. Looking for recommendations. Prefer less than $4000. Currently own Jeff Rowland Consumate preamp, phonostage and power supply.  Older technology but still excellent. What does newer technology have to offer over what I have?  Soundstage? Musicality? My system includes Linn turntable, Odyssey Kismet monoblocks, Spatial M3 Turbo spkrs, Schitt DAC, Cambridge CD Turntable, PS Nuwave, etc.  Any recommendations would be greatly appreciated. All input welcome. Thanks.