Dan Dugan Sound Design E - Manual (Page 11)

Dugan Model E User Guide Quickstart
11
Step 3 Linking Multiple Units
All linked units must be in analog audio I/O mode and use analog connections to the
board because linking requires the digital I/O connectors. Up to eight Model Es (64
channels) can be linked into a single system that maintains the gain of one mic from the
room no matter how many mics are connected. One unit must be the master and the oth-
ers slaves.
Set the NORM-SLAVE switch on the rear panel to NORM (up) to designate that Model
E as the Master. Set the NORM-SLAVE switch on the rear panel to SLAVE (down) to
designate that Model E as Slave.
Link units in a ring configuration as shown below. Note that all LINK IN and OUT con-
nectors are used to create the ring.
Figure 2-3 Linking units
Step 4 Operation
Raise your console preamp gains until the Model E’s green level LEDs stay illuminated
when the room is quiet. The level LED illuminates green when the input level is within
the acceptable range for automatic mixing and flashes red to indicate clipping. There
should be enough gain ahead of the Model E to maintain the green LED at all times.
NOTE: When the green light goes out, the channel is in a downward expansion mode
to avoid feedback. This condition should be avoided because the smooth am-
bience characteristic of Dugan automatic mic mixing is lost.
OPTICAL LINK
OPTICAL LINK
IN
IN
IN
OUT
OUT
OUT
Master
OPTICAL LINK
Slave
Slave