Mesa Boogie Quad Preamp. Preamp only. No footswitch or rack ears. Works and sounds like a Boogie preamp ought to. Has signs of use as you can see. All knobs and switches and sliders in place.
I'll include a shorted out 1/4" jack to use to choose channel and mode on the back. Just plug it into the desired channel and mode and you are all set. If you want to channel switch and use this in a live setting, and not recording, then you will need to find a footswitch, or have one made.
This also did have a new 3 prong plug attached--as you can see in pics.
I love Mesa Boogie and have a bunch of preamps and amps I will be parting with as I clear out a lot of gear I have collected over the years.
These don't come up often, so grab it if you have a chance. :)