The DML Attenumixer is a quad attenuator / mixer in eurorack format.

Each section has a main and aux input, a level control and an output.
The aux input is normaled to ground, so any signal going into the main input is attenuated.
If a signal is plugged into the aux input, the output is a blend between the two inputs.

The module is completely passive and doesn't have a power bus connection.

Controls:
Level * 4

Inputs:
Main * 4
Aux * 4

Outputs:
Out * 4

Electrical:
Passive

Mechanical:
6hp, 3U Eurorack