I am a guitar player exploring playing bass. A friend is loaning me a bass cab and amp temporarily. I know using guitar amp is a no no so I plan on buying a dedicated bass cabinet but don't want to buy a bass amp for the moment. But....I am looking to leverage my current gear for bass. Will this help? Marshall 9005 Tube Guitar power amp Mosvalve MV-962 solid state power amp Tech 21 PSA-1 Guitar Preamp Digitech Twin Tube Guitar Preamp Marshall 9001 tube Guitar Preamp Can I use the above poweramp/preamp combos with a dedicated Bass Cabinet like MarkBass or Hartke etc.... Or I can't really use the Guitar power amp/preamp for anything else other than Guitar.