The EarthQuaker Devices Four to One Mixer is a compact, professional-grade 4-channel audio mixer designed for users who need precise signal control in a streamlined format. Each of its four inputs features independent level control and a selectable phase switch, allowing users to easily balance multiple audio sources and correct for phase issues that can occur when combining signals from different pedals or instruments. This makes it a valuable tool for both studio and live applications where consistent, high-quality audio is essential.

One of the key benefits of the Four to One Mixer is its high 1MOhm input impedance. This ensures compatibility with a wide range of signal sources, including passive instruments like guitars and basses, without compromising tone or clarity. The low 100 Ohm output impedance helps maintain signal strength and fidelity, even when using long cable runs, reducing the risk of tone loss or signal degradation in more complex setups.

Each channel includes a dedicated level control knob, giving users precise control over the volume of individual inputs. This makes it easy to create a well-balanced output mix without needing additional gear or adjustment. Whether you're blending multiple instrument signals, effects chains, or other audio sources, the Four to One Mixer gives you full control over the output level of each input.

The phase switch on each channel is another essential feature, allowing users to quickly address phase inversion issues that can occur when combining signals. In situations where a pedal or instrument reverses the polarity of a signal, flipping the phase switch to the "-" position corrects the problem immediately. This ensures optimal audio clarity and prevents the signal cancellations or comb filtering that can occur with phase-mismatched sources.

While the Four to One Mixer is designed to work seamlessly with the EarthQuaker Devices One to Four Splitter to create parallel signal chains, it's also flexible enough to integrate into a wide range of setups. From routing instruments and effects to managing inputs in a compact recording rig, this mixer delivers reliable performance in a space-saving enclosure.