DOD 240 Resistance Mixer

The 240 Resistance Mixer is a passive audio accessory produced from the late 1970s. Unlike an effects pedal, it's a 4-input, 1-output mixer equipped with four independent volume controls. Operating without a power supply, it allows you to mix up to four guitars, basses, keyboards, or microphones to a single amplifier or mixing console input. Thanks to its passive design, it can also be used in reverse as a 1-to-4 splitter, sending a signal to multiple amplifiers or devices.