Usher Pre-Amp and Usher R2.5 what are they worth??


i have a chance to buy some used Usher pre and amp.  I can not find much info on these.  Any help would be appreciated...i need to know what I should be paying used (amp is a bit scratched up on front)
Usher R2.5 250wpc class AUsher P-370 pre/pro

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