Threshold amp / Counterpoint pre amp / Monster Cable Alpha 1 MC cartridge

Threshold amp / Counterpoint pre amp / Monster Cable Alpha 1 cartridge

Hi All

I have the following equipment that I’m trying to get some sense of what trade in or re-sale value they have. Thanks:
1. Threshold S/300 amp including owners manual. Excellent condition
2. Counterpoint SA-3000. Just burned out something in it and since a schematic can’t be found, I’m being told it can’t be fixed. BTW, does anyone have schematics?
3. Monster Cable alpha 1 MC cartridge. Works. have original box.

Have owners manual for CP and T/H

Any help would be appreciated.  
 
Many thanks
Fred