Gallien Krueger 200MP Vintage Bass or Keyboard Amp. Guitar. 200 MP

  
But I still wouldn't gig with it. I didn't have a keyboard to test it with, so I played a bass through it. I would call it more of a practice amp for bass and/or keyboards. But I wouldn't gig with it without using the external output speaker jack and/or taking the power amp input and going to a power amp to power a stronger speaker.