Check the listing for details. Walrus Audio Canvas Stereo Direct Box and Line Isolator. Condition: New. Listed at 199.99 USD. You are the artist. Your sound is the paint, and this is your canvas. The Canvas stereo is a Direct Box/Line Isolator designed to remove any resistance between you and your audience by giving a pristine sonic foundation to build your masterpiece upon. From houses of worship to the dive bar downtown, Canvas Stereo is built to be the performance tool that goes wherever you are making your music. Canvas Stereo is a Passive Line Isolator (LI) and Direct Injection (DI) device that converts your unbalanced signals into balanced signals for interfacing properly with your recording interface or mixer at front-of-house. If you’re using an amp-in-a-box (DSP Guitar Rig), like our ACS1, keyboards, or any other instrument utilizing both left and right outputs, then the Canvas Stereo is your new bridge to the front-of-house. The Canvas Series DIs pack everything you need from a DI/LI into a standard pedal-sized enclosure designed to look great right on top of your board.