Old Blood Noise Endeavors Signal Blender Routing Pedal - UsedSignal Blender is a parallel routing pedal designed to blend effects side by side instead of chaining them in series. Perfect for guitarists, bassists, and pedalboard enthusiasts, it gives you full control over your clean tone and external effects loops without sacrificing clarity. Featuring dual send return loops and independent switching for each loop and the main clean signal, Signal Blender functions as a parallel effects blender, 3 to 1 mixer, 1