"These are mic pres API, they're called 500 Series because of their size. These are also called lunch pails because you can just take these various 500 series that people make and just kind of stuff them in here," says Steve Vai about the Shadow Hills Industries Mono GAMA 500 Series Mic Pres.more
This is a very versatile preamp. What I really like about this preamp is the fact that you have three different transformers. When used in a pair you can get really creative and go for different color on the L then R of whatever your amping. You can get transparent or color out of this thing depending on what transformer setting you have applied. My favorite setting is the discrete however I use the steel a lot too.
One of my newest additions to my new 500 rack, and i have to say i'm in love. I use it on most of my drum tracks, running via firewire from my Midas Venice F32, then to a 500 series pultec, and my results have been amazing. I have never been able to achieve such a powerful chest pounding low end and heavy drum sounds! I havent used it on to many other tracks like synth's etc. but i will experiment more this next month. I would highly refer this to all of my fellow engineers who have a 500 series rack or are planning on purchasing one. Shadow Hills always delivers high quality units. I could not image living without it, and i will be purchasing another one asap!