Used Sound Devices MixPre Sound Mixer.  This is a 2-input, 2-output mixer with amazing pre-amps and a rock solid build.  This mixer is designed for use in video and film production, but can be used for other recording purposes as well.

The mixer is in good shape, some cosmetic wear (paint nicks here and there), but it works great.  Preamps work and sound great and all input/output jacks and gain knobs work perfectly.  

The mixer can be powered by 2x AA batteries or external powering (5-18volt) with the proper cable.  

See my other auctions for other great production sound gear.