This is a professional 1U high rack mount processor for many audio effects, pitch correction, ect. Here is a link to the manual so you can see what this box can do. http://www.zoom.co.jp/archive/Previous_Model/E_9120.pdf
This sold for over $500 new and they now sell for around $200. I'll ship this to you for $100 total, including shipping. It is in as new condition with the original packing, box, and manual. I don't use it anymore. Works fine.
email me:
cdoneal@comcast.netChuck K1KW