Radial Engineering’s Mix-Blender allows a guitarist or bassist to mix two instrument or effects signals, then blend effects into the signal, like a mixing console. Its two inputs use discrete Class-A/unity-gain buffers with adjustable Level controls that do not boost or color the signal. All connections are ¼” phone jack and designed to work at typical guitar-signal levels. It is housed in 14-gauge steel and powered by a Boss-style 9-volt adapter or pedalboard brick. Learn more at radialeng.com.