Just had one of these arrive today, it looks interesting:
http://www.tekkeon.com/site/products-mypowerall.phphttp://www.tekkeon.com/site/downloads/dtasht_MP3450.pdfI have to power my Korg MR-1 (5v) as well as a preamp or phantom power unit, and was trying to figure out how to do both with one battery, to cut down on clutter.
Well, the new Tekkeon has one variable power out (5 - 19 v) and one fixed power out (5v - USB standard). The fixed power out is in the form of a USB port so you can plug in any USB-powered device. I think one of the adapter tips it came with will allow me to plug the Korg DC in into the USB port (not directly - the Korg won't run on USB power, only the DC in). So, I should end up with a 5v to run the Korg, and a variable out to run whatever else I need to run. And there's an extra add-on battery for longer duration shows/festivals.
Will be trying it out tonight...
Mike