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Mix Unit

A single mixer channel.

mono-to-mono

mono-to-stereo

stereo-to-stereo


Overview

This unit (and its variants) allows you to mix the output of an additional sub-chain into any chain at any position. The signal arriving from the left of the Mix unit is added to a panned and attenuated (or amplified) version of the output of the sub-chain associated with the gain parameter. The following diagram depicts the signal flow of the Mix unit.

mix-schematic.png

Notice how the dB meter taps the signal before the mute choke and gain stage. Also, notice how you can chain multiple Mix units to create a standard mix bus.

Parameters

gain

Simple Fader

Controls the amount of gain (from -60db to +12db) applied to the signal coming up from the sub-chain before summing it with the input signal (coming in from the left). When this control is selected, the ER-301 sub-display will also show Solo (S2) and Mute (S3) controls. The solo/mute group is formed from all the Mix units in the containing chain. So if you had 3 Mixer units in a given chain, pressing solo on one of them will mute the other two and so on.

mix-solo-example.png

In the above example, Mix #2 has been solo’ed so that the sub-chain signals going into Mix #1 and #3 have been muted.

pan

Gain/Bias | stereo only

Pans the signal between the left and right channels according to the following (linear) panning law:

/er-301/pan-law.png

Some examples:

  • A value of -1 will hard pan to the left.
  • A value of +1 will hard pan to the right.
  • A value of zero will pan to the center (no attenuation for both channels).