The STG Loopus Maximus is a double effects loop switcher. With this stompbox you can switch on two entire effect loops with just one tap. You can hook up a gazillion cascaded effect in either Send and Return A or B. With one tap you can instantly add a chain of effects to your guitar's sound. This saves you from the "Oh-no!-here-comes-the-bridge-and-I need-to-switch-on-5-stompboxes-in-one-second" feeling. :) So, easy as pie, control 2 FX loops in 1 box.
Controls: Ehm.. None.
Power:Operates on a standard 9V (negative center) power supply. Can be used with a 9V battery.