Highest value pre under 1.5k used?


Highest value  / price to performance ratio preamp tubed or solid state in the ultra competitive 1.5k or less price point.

Thanks in advanced for the opinions!

jffyg

Says used in the title. 
 

something from Rogue or Jolida if want to go tube. 
 

ss not sure. 

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Robert Grodinsky Research RGR 4. List price in 1981 $600. I bought mine for $200 a few years ago! A superb preamp from the founder of pro audio company RG Dynamics. Sound quality competitive with any of today's four-figure preamps.

What do you need for feature set?   Remote?  Dual pre-out ?    Balanced?