Walrus Audio Sl??tv?? Multi Texture ReverbWalrus Audio Sl?? tv?? Multi Texture Reverb The Sl?? tv?? Multi Texture Reverb is a variant of the Sl?? but adds on the ability to create and save three presets. Save your favorite dreamscapes by simultaneously pressing and holding down on the bypass and sustain switches. Scroll through them by simultaneously pressing and releasing bypass and sustain.