Crown Audio 14M, 28M operation manual Input Routing, Phantom Power, Priority Muting

Commercial Audio Series Mixers

2.6 Input Routing

In the 28M, any input can be assigned to Output 1, Output 2 or both. The two DIP switches labeled INPUT ROUTING are used (Figure 2.7). Follow the settings printed on the back panel next to the INPUT ROUTING switch. For example, to send input Channel 3 to Output 1 and Output 2, turn on DIP switches 13 and 14.

Figure 2.7 Input Routing DIP Switches

2.7 Phantom Power

To turn on phantom power on all mic inputs, turn on the switch number 7 in the AMP CONFIG DIP switch.

2.8 Priority Muting

A back-panel AMP CONFIG DIP switch (Figure 2.8) can assign Input Ch. 1 or Input Ch. 5 (28M only) as the priority input for each mixer output, which temporarily mutes the remaining inputs. Muting is activated by contact closures.

For example, suppose you confi gured Channel 1 as the priority input. Mic 1 is plugged into Channel 1. A press-to-talk switch in Mic 1 is wired to the Priority connector in the mixer-amplifi er. When you press the mic switch, all other signals are muted so you can make an announcement on Mic 1.

AMP CONFIG

One DIP-switch selection enables Channel 1 as the priority input, which mutes all other inputs to Out 1. In the 28M only, another DIP switch selection enables Channel 5 as the priority input, which mutes all other inputs to Out 2. In the 28M only, another set of DIP switches enable Channel 1 as the priority input into both Out 1 and Out 2, effectively muting any input.

To set the mixer for normal mode with no priority: Set the OUT CONFIG DIP switch as follows:

1ON

2OFF

3OFF

4OFF

5ON

6OFF

To give priority to the Channel-1 input to Out 1 only: Set the OUT CONFIG DIP switch as follows:

1OFF

2ON

3OFF

4OFF

Also, wire a SPST switch to the PRIORITY connector between COM and CH 1 OUT 1. Close the switch when you want the Channel-1 input to mute all other inputs feeding Out 1.

To give priority to the Channel-5 input to Out 2 only: Set the OUT CONFIG DIP switch as follows:

5OFF

6ON

Also, wire a SPST switch to the PRIORITY connector between COM and CH 5 Out 2. Close the switch when you want the Channel-5 input to mute all other inputs feeding Out 2.

To give priority to the Channel-1 input to Out 1 and Out 2: Set the OUT CONFIG DIP switch as follows:

1OFF

2ON

3ON

4ON

Also, wire a SPST switch to the PRIORITY connector between COM and CH1 Out 1. Close the switch when you want the Channel-1 input to mute all other inputs feeding Out 1 and Out 2.

Note: The routing confi guration is extremely versatile. Many confi gura- tions for additional applications not highlighted in this document can be created by examining the signal fl ow in the block diagram on page 13.

Figure 2.8 AMP CONFIG DIP Switch

Operation Manual page 11