I just got my Lunchbox and joined the 500 club. I thought I would post a few samples of the different pre's. All vocals where cut through a Peluso 2247 SE with no compression. The MA5 Sample is short in the beginning (Pilot Error). I also engage the 28k button on the second sentence of the clip. The Great River is not the 500 version. It is the rack mount version.
Enjoy
500 Pres