Master Input/Output Section

Controls & Connections

24 29

25 26

3. MASTER INPUT / OUTPUT SECTION

(23) AUX SEND

The Aux Send jack provides a mono mixed signal from the input channels, which can be connected to an external effects unit or other devices. The signal is adjusted by the channel Aux Send(7) controls of each channel and is post channel level control.

(24) AUX RETURN

These balanced Left and Right Aux ¼” inputs can be used to return the effected signal into the MM-15USB or it can be used as an auxiliary input for line level devices. The signal level is adjusted by the Aux Return(17) control.

(25) STEREO MINI INPUT

This 1/8” stereo mini input can be used to input stereo audio signals from any piece of equipment with line level or headphone level outputs, in particular cassette, CD, or MP3 players. The Tape/USB To Mix(18) pushbutton switch must be enabled for the 1/8” input signal to be mixed onto the Main bus.

(26) STEREO MINI OUTPUT

This 1/8” TRS jack outputs a line level stereo signal. When the Aux to Record(16) switch is enabled, the Channel Aux bus signal is sent to both L and R connections on the TRS jack. When the Main to Rec/USB(15) switch is enabled the 1⁄8” output signal is post Main fader and true stereo L/R. Both Aux and Main signals can be output simultaneously. When both switches are disabled,

there is no output at the 1⁄8” output.

(27) MAIN OUTPUTS

These unbalanced 1⁄4” jacks output the final Main Mix Left and Right line level signals.

(28) HEADPHONES

The Headphones 1⁄4” stereo output can be used to monitor either the Main mix or a set of other inputs depending on the position of the Tape/USB to Control(19) switch.

The headphone jack will power headphones with impedances of 8^ or greater. The Control Room output jack must be left unplugged while headphones are being used. Inserting a plug into the Control Room (29) output automatically configures the unit for Control Room mode, thereby disabling the headphone Right signal and allowing the Headphones jack to be used as a Control Room Left output.

(29) CONTROL ROOM

Inserting a plug into the Control Room right 1⁄4” jack automatically configures the unit for Control Room mode. This 1⁄4” TS jack will output the Right signal. The Headphones(28) 1⁄4” TS jack will out- put the Left line level signal. These L-R outputs can be connected to an amp used to power stereo control room monitor speakers, or used for any output application.