Manual-3
REAR PANEL DESCRIPTION
1
CHANNEL 1 INPUT connectors:
deliver signal to both channel 1 of the processor and to the crossover circuit. Choose either
the XLR or the ¼" TRS jack, do not use both, they do not sum.
2
CHANNEL 1 / LOW OUTPUT connectors:
deliver signal from channel 1’s processing circuitry and represents the low-pass
portion of the signal when the CROSSOVER ENGAGE switch
7
is in the
in
position. Both the XLR and the ¼" TRS jack may
be used at the same time if desired.
3
CHANNEL 2 INPUT connectors:
only deliver signal to channel 2’s processor. It is disconnected when the CROSSOVER EN-
GAGE switch
7
is in its
in
position. Choose either the XLR or the ¼" TRS jack, do not use both, they do not sum.
4
CHANNEL 2 / HIGH / COMBINE OUTPUT connectors:
make the signal from channel 2 available to the outside world and
is the high-pass portion of the audio when the CROSSOVER ENGAGE switch
7
is in its
in
position. If the OUTPUTS switch
8
is in the COMBINE position, this output produces the sum of channels 1 & 2 and its overall level is controlled by CH 2
OUTPUT LEVEL. Both the XLR and the ¼" TRS jack may be used at the same time if desired.
5
SIDE CHAIN:
Inserting a ¼" TRS plug into this jack breaks the input signal path to both the Compressor and Gate control
circuit. Inserting an equalizer in this loop enables greater compression of boosted equalizer frequencies. The standard convention
is used of Tip=Send & Ring=Return.
6
INPUT GAIN TRIM switches:
In its +4 dBu position, the input gain of the respective channel is unity. In the -10 dBV position,
the input gain is increased by 12 dB (although mathematically suspicious, it really is 12 dB, not 14 dB) to compensate for certain
recording devices. This switch must be in the +4 dBu position for front panel calibration accuracy.
7
CROSSOVER ENGAGE switch:
In its
in
position, this switch places the low pass portion of the audio signal on CH 1 /LOW
OUT, and the high pass portion on CH 2 / HIGH / COMBINE OUT.
8
SEPARATE / COMBINE OUTPUT switch:
In the COMBINE mode, the outputs of channel 1 and channel 2 are added
together and delivered to the CH 2/HIGH/COMBINE OUT connector. This feature is supplied to allow an input to be split
by the crossover, high pass and low pass delivered to separate processor channels, and recombined at the output of the unit. The
COMBINE mode has no effect on the output of channel 1.
9
Remote POWER supply input:
The DC 24 is supplied from the factory with a Model RS 1 Remote Power Supply suitable for
connection to this input jack. The power requirements of the DC 24 call for an 18-24 volt AC center-tapped transformer only.
This is not a telephone jack. Never use a power supply with your DC 24 other than the one supplied or an exact replacement obtained
from Rane Corporation.
Using any other type of supply may damage the unit and void the warranty.
0
Chassis ground point:
A #6-32 screw is used for chassis grounding purposes. If, after hooking up your system, it exhibits exces-
sive hum or buzzing, there is an incompatibility in the grounding configuration between units somewhere. Your mission is to
discover how your particular system wants to be grounded. Here are some things to try:
1. Try combinations of lifting grounds on units that are supplied with ground lift switches or links.
2. If your equipment is in a rack, verify that all chassis are tied to a good earth ground, either through the line cord grounding pin or
the rack screws to another grounded chassis.
3. Units with outboard power supplies, such as the DC 24, do not ground the chassis through the line cord. Make sure that these
units are grounded either to another chassis which is earth grounded, or directly to the grounding screw on an AC outlet cover by
means of a wire connected to a screw on the chassis with a star washer to guarantee proper contact. If you are connecting the DC
24 outputs directly to a power amplifier, be sure to connect a ground wire to the amplifier chassis.
Refer to the “Sound System Interconnection” RaneNote (supplied with this manual) for further grounding information.
8
6
3
5
6
5
9
10
7
4
1
2
OUTPUTS
CH 2 TRIM
CH 2 HIGH /
COMBINE OUT
CH 2
IN
CROSSOVER
ENGAGE
CLASS 2 EQUIPMENT
CH 1 /
CROSSOVER IN
CH 1 /
LOW OUT
DC 24
+4 dBu
COMBINE
SEPARATE
-10 dBV
TIP=SEND
RING=RETURN
TIP=SEND
RING=RETURN
INPUTS AND OUTPUTS
TIP=#2=POSITIVE
RING=#3=NEGATIVE
SLEEVE=#1=SIGNAL GROUND
CH 1
SIDE CHAIN
CH 2
SIDE CHAIN
MADE IN U.S.A.
RANE CORP.
N108
+4 dBu
-10 dBV
CH 1 TRIM
600mA
POWER
