Mackie DX8 instruction manual Channel Strip

Another application might be to turn on an amplifier when an output signal is present. Connect the Output Signal Present logic output to a power controller or power-up sequencer that switches AC power to the amplifier's AC line cord.

Input Channel Open: This can be used to provide a visual indication (via an LED) that a microphone's gain is turned up and ready to use. Note that if a channel is muted, the Input Channel Open logic pin will become inactive (logic high).

Output Channel Open: This can be used to provide a visual indication (via an LED) that an output's gain is turned up. Note that if an output is muted, the Output Channel Open logic pin will become inactive.

Preset Active: This can be used to remotely indicate when a specific preset is active. For example, in a restaurant/bar, one preset may be used during the dinner hours and another preset for later in the evening. Use the Preset Active logic on two output pins to indicate which preset is selected.

Priority Inactive: This is active when there is no priority asserted by forced-on inputs. This can be used in a location where an input might be forced- off by a priority function, to indicate when a priority is activated and the input is being forced off.

Channel Strip

Meter

The input channel meter indicates the input signal level just after the mic preamp and A/D converter stages. These meters indicate the signal level in real time relative to maximum level (+18 dBu with TRIM at unity) and follow the meters on the front panel, with the exception that they don't indicate gain when the Up/Down buttons are pressed, as the front panel meters do.

Channel Name

This box displays the name assigned to each channel. These names are entered in the Audio Input window.

Note: The output strip names are entered directly in the boxes above the High Shelf EQ. Click in the box and the I-beam text tool appears. Double- click the box to select all the text. Type in the new name.

High Shelf EQ

These two knobs control the gain (± 15 dB) and the corner frequency (500Hz-20kHz) of the channel high- frequency shelving EQ. Click and drag up or down to increase or decrease the settings of these controls.

Mid Peaking EQ

These two knobs control the gain (± 15 dB) and the center frequency (20Hz-20kHz) of the channel mid-frequency peaking EQ. Click and drag up or down to increase or decrease the settings of these controls. The actual settings are displayed in the two boxes above the knobs.

Low Shelf EQ

These two knobs control the gain (± 15 dB) and the corner frequency (20Hz-500Hz) of the channel low-frequency shelving EQ. Click and drag up or down to increase or decrease the settings of these controls. The actual settings are displayed in the two boxes above the knobs.

Mute Button

Click this button to mute the channel's signal. Channel muting occurs after the input meter, so if signal is present at the input, the meter continues to indicate the signal level even though it is not getting through to the outputs.

The output mute buttons mute the signal just before the output faders and meters. Channel and output muting can also be accomplished by a logic input or a Selection Remote Control.

Gain

Two faders are used to control the levels individually to Bus A and B. Click on the fader knob and drag up or down to increase or decrease the channel gain.

Tip: Press the Ctrl key while clicking on a fader or knob to reset the control to unity or its default value.

DX8 – 28