This is a Gallien Krueger 200MK keyboard combo amp. It dates to February 1986. The amp works, but makes a lot of static. And it tends to cut out after a bit. The original speaker (and baffle I guess) has been replaced with what seems to be a 6" (or so) car or home theater type speaker and the silver tweeter. There is another hole below the tweeter which seems to be a port but had some foam stuffed in it (now fallen inside the amp). The amp seems similar to a MB150S bass amp, so maybe someone can cannibalize this for parts? I used it for practicing once in a while.
Asking $85 shipped east of mississippi river and $95 west. I take paypal. Please email with questions.
I have plenty of HQ pics so you can check it out. Owners Manual from Gallien.com 
