DRM
18S 2000W
18" P
rofes
sional P
ow
er
ed Subw
oofer
10
DRM18S 2000W 18” Professional Powered Subwoofer
DRM18S Subwoofer: Rear Panel Features
1. Power Connection
This is a standard 3-prong IEC power connector.
Connect the detachable power cord (included in
the packaging with the subwoofer) to the power
receptacle, and plug the other end of the power
cord into an AC outlet.
Make sure that the AC power is matched to
the AC power indicated on the rear panel
(below the IEC receptacle).
Disconnecting the plug’s ground pin is
dangerous. Don’t do it!
2. Power Switch
Press the top of this rocker switch inwards to turn
on the subwoofer. Press the bottom of this rocker
switch inwards to turn off the subwoofer.
As a general guide, the mixer (or other
signal source) should be turned on first,
subwoofers next, and loudspeakers last.
As such, the loudspeakers should also be turned
off first, followed by the subwoofers, then the mixer.
This will reduce the possibility of any turn-on or
turn-off thumps and other noises generated by any
upstream equipment from coming out of the speakers.
3. XLR and 1/4" Combo Inputs
The input channels may accept a balanced mic signal
using an XLR connector. They are wired as follows,
according to standards specified by the AES (Audio
Engineering Society).
XLR Balanced Wiring:
Pin 1 = Shield (ground)
Pin 2 = Positive (+ or hot)
Pin 3 = Negative (– or cold)
In addition to accepting a balanced mic signal
using an XLR connector, these input channels may
also accept 1/4" line-level signals driven by balanced
or unbalanced sources.
To connect balanced lines to these inputs, use
a 1/4" Tip-Ring-Sleeve (TRS) plug. “TRS” stands
for Tip-Ring-Sleeve, the three connection points
available on a stereo 1/4" or balanced phone jack
or plug. TRS jacks and plugs are used for balanced
signals and are wired as follows:
1/4" TRS Balanced Mono Wiring:
Sleeve = Shield
Tip = Hot (+)
Ring = Cold (–)
2
3
1
SHIELD
COLD
HOT
SHIELD
COLD
HOT
3
2
1
SLEEVE
TIP
SLEEVE
TIP
RING
RING
TIP
SLEEVE
RING
PUSH FOR SETTINGS
50-60 Hz 110W
100-240VAC
SPEAKER CONTROL
INPUT
DIRECT OUT
INPUT
DIRECT OUT
HIGH-PASS OUT
HIGH-PASS OUT
5
1
2
4
6
7
3
