New EarthQuaker Devices Four to One Mixer Guitar Pedal

From EarthQuaker Devices:

The Four to One Mixer is a simple and compact 4 channel mixer with independent level controls and selectable phase for each channel. This device features a high 1 MOhm input impedance and a low 100 Ohm output impedance, ensuring all signals maintain their sonic integrity throughout their journey, even on long cable runs. The Four to One Mixer was primarily designed to be used with the One to Four Splitter to create 4 parallel signal paths, but it can be used just about anywhere you need to mix four different sources into a single output!

Controls
Phase: Selects the output phase of the channel. Sometimes other pedals and various instruments will invert the phase of the signal, which causes problems when mixing with non-inverted signals. If you have an inverted signal, flip the phase switch to "-" to correct the polarity. In most cases this switch should stay in the "+" position.
Level: Adjusts the output volume of the channel.

Tech Specs
Dimensions: 4.75 x 2.50 x 2.25 in. (121 x 64 x 57 mm) with knobs
Current Draw: 50 mA
Input Impedance: 1 MΩ
Output Impedance: 100 Ω

Power
This device takes a standard 9 volt DC power supply with a 2.1mm negative center barrel (not included). We always recommend pedal-specific, transformer-isolated wall-wart power supplies or multiple isolated-output supplies. DO NOT RUN AT HIGHER VOLTAGES!