EAW DX8 Quick Start Manual page 2

FRONT PANEL FEATURES
AND CONTROLS
INPUT UP/DOWN BUTTONS
Use to adjust the mix level for each
input channel to Output A or B.
INPUT LED DISPLAY
This indicates the signal level after the
mic preamp stage, just after the A/D
converter. When any input UP/DOWN
button is pressed, the input meters
switch from level metering to level
setting indication. After five seconds, the meter
switches back to normal level (PPM) metering.
EQ LO/HI UP/DOWN BUTTONS
Use to adjust the gain of the 2-band shelving EQ on
Outputs A or B.
EQ LED DISPLAY
When an EQ UP/DOWN button is pressed, the EQ
meter indicates the amount of boost or cut of the
LO and HI frequencies in decibels (±15 dB).
MASTER A/B UP/DOWN BUTTONS
These buttons adjust the output level for each
output bus.
MASTER OUTPUT LED DISPLAY
This indicates the signal level after the digital
signal processing and MASTER gain stage. When a
MASTER UP/DOWN button is pressed, the master
output meter switches from level metering to level
setting indication. After five seconds, the meter
switches back to normal (PPM) level metering.
MODE
Changes the front panel buttons between Bus A
and Bus B operation. The LOCK position disables
the front panel controls to prevent unauthorized
changes to the settings. The default lock code
(1234) can be changed with the DX8-PC application.
COMM PORT
An RS-232 port on a 9-pin D-Sub connector, which
connects to a personal computer or other compatible
control system for external control of the DX8 set-
tings.
POWER
Use the POWER switch to turn the DX8 on and off.
OL OL OL OL
2 2 2 2
4 4 4 4
7 7 7 7
10 10 10 10
1 2 3 4
REAR PANEL FEATURES
AND CONTROLS
INPUTS 1-8
Each of the eight analog inputs has separate bal-
anced mic and line input connectors that use XDR
mic preamps. These are 3-pin Phoenix-type connec-
tors. Use either the MIC or LINE input; only one can
be used per channel.
TRIM
Use to trim the level of the input signal for optimum
signal-to-noise ratio in the preamp stage.
PHANTOM POWER
These switches apply phantom power (+48VDC)
to pins 2 and 3 of the selected mic input connec-
tors. Switch the PHANTOM POWER switch for an
individual channel to the UP position when using a
condenser microphone.
BUS A/B INPUTS
These analog inputs accept balanced line-level
signals and route the signal to the internal buses.
There is no DSP processing on these inputs.
BUS A AND B TRIM
Use to trim the level of the inputs to the buses.
1 2 3 4 5 6 7 8
DIRECT OUTPUTS
U
-20 +20
TRIM
BUS A
MIC
POWER –
+ G
INPUT
LINE
22-28V DC,
–
G +
3A MAX
–
–
100 240V 0V , 50/60Hz, 1A MAX , 50/60Hz, 1A MAX
+
LISTED COMMERCIAL LIS LISTED COMMERCIAL
AUDIO EQUIPMENT
LINE
R 9Z39
OL OL
2 2
4 4
7 7
10 10
5 6 7 8
LO
DIRECT OUTPUTS
This 15-pin D-Sub connector supplies an analog,
unbalanced line-level signal from each of the eight
program inputs, post-preamp and pre-processing.
DIRECT OUTPUTS
8
15
SIGNAL RETURN
SIGNAL RETURN
SIGNAL RETURN
SIGNAL RETURN
SIGNAL RETURN
SIGNAL RETURN
SIGNAL RETURN
9
1
RECORD OUT
These RCA connectors supply unbalanced line-level
signals from the BUS A and BUS B outputs. The
signals are the same as the main outputs.
OUTPUTS A/B
These 3-pin Phoenix-type connectors supply a bal-
anced line-level signal from BUS A and BUS B.
LOGIC I/O
This 25-pin D-Sub connec-
tor provides 10 logic control
inputs and 10 logic control
outputs (open-collector). These
inputs can be used to control a
wide variety of DX8 functions
via external switching. The
outputs can be used to provide
status levels for external indi-
cators for a number of internal
DX8 DIGITAL MIXER
U U U U U
U
0 60 0 60 0 60 0 60 0 60
-20 +20
- 30dB +30dB - 30dB +30dB - 30dB +30dB - 30dB +30dB - 30dB +30dB
TRIM TRIM TRIM TRIM TRIM TRIM
BUS B 1 2 3 4 5
MIC MIC MIC MIC MIC
LINE LINE LINE LINE LINE LINE
OL
15
12 2
9 4
6 7
3 10
DX8 DIGITAL MIXER
A B LOCK
MODE
EQ HI A MASTER B
settings and conditions, as well as control switching
to external devices.
REMOTE BUS
This 3-pin Phoenix-type connector can be used to
attach optional remote controls to the DX8. Several
remote controls can be connected to each other in
INPUT 1 HOT (+)
a daisy-chain fashion to extend the remote control
INPUT 2 HOT (+)
INPUT 3 HOT (+)
functionality of the DX8.
INPUT 4 HOT (+)
INPUT 5 HOT (+)
INPUT 6 HOT (+)
COMM PORT
INPUT 7 HOT (+)
INPUT 8 HOT (+)
This is identical to the COMM PORT on the front panel.
Use this to connect to an RS-232 serial port on a
personal computer or third-party controller for external
control of the DX8.
EXPANSION SLOT
This is used for the DX810 to install the DX•10e
expansion board, which provides additional DSP
horsepower and eight more balanced outputs.
24VDC POWER
The DX8 can be powered using a 24V DC power
supply. This can serve as the primary power
LOGIC I/O
supply for the DX8, or as a backup supply
13 in case of an AC power failure. The DX8
25
N/C
GROUND
N/C
N/C seamlessly switches to the backup supply if
LOGIC IN 10
LOGIC OUT 10
LOGIC IN 9
there's a power loss. When both AC power
LOGIC OUT 9
LOGIC IN 8
LOGIC OUT 8
LOGIC IN 7 and 24V DC power are connected, the AC
LOGIC OUT 7
LOGIC IN 6
LOGIC OUT 6
LOGIC IN 5 power is used and no current is drawn from
LOGIC OUT 5
LOGIC IN 4
LOGIC OUT 4
the DC supply.
LOGIC IN 3
LOGIC OUT 3
LOGIC IN 2
LOGIC OUT 2
LOGIC IN 1
LOGIC OUT 1
+5VDC
14
1
SERIAL NUMBER MANUFA MANUFA MANUF CTURING D ACTURING D A CTURING D E CTURING DAT AT
U U U
12 INPUTS 1 +5V
0 60 0 60 0 60
- 30dB +30dB - 30dB +30dB - 30dB +30dB
TRIM TRIM TRIM
6 7 8
G 11 OUTPUTS 1
MIC MIC MIC LOGIC I/O
PHANTOM POWER
48V DC
A B
RECORD
LINE LINE LINE
COMM PORT POWER
REMOTE BUS COMM PORT
+ –
G
OUTPUTS
A B
– –
G + G +