MACKIE 18" Powered Subwoofer HD 1801 - Manual (Page 8)

Rear Panel Features
1. IEC AC Receptacle
This jack accepts the supplied 3-prong AC power cord.
Before you plug the AC power cord into the
powered subwoofer, make sure that the
voltage of your unit is the same voltage as your
local AC mains supply. Use only the power
cord supplied. Also, disconnecting the plug’s ground pin
is dangerous. Don’t do it.
2. POWER
Use this switch to turn the HD1801 on and off. The
LED above the switch will illuminate when powered on.
The front panel LED will also turn on, but only if the
POWER LIGHT ON switch (7) is engaged. Press the
bottom of this switch to turn the subwoofer off.
As a general guide, powered subwoofers
should be turned on after the mixer and other
sources, but prior to full-range speakers.
Additionally, they should also be powered off
after the tops, but before the mixer and other sources.
This will reduce the possibility of any turn-on, or turn-
off thumps in your speakers.
POWER
18 -INCH HIGH DEFINITION POWERED SUBWOOFER
ON
REVISION SERIAL NUMBER
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR
MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
SETTINGS
POWER
LIGHT ON
SIG/ LIMIT
THERMAL
LEVEL
POLARITY
INVERT
FULL RANGE
HIGH PASS
OUTPUTS
A B
A B A B
INPUTS
+ 6dB 6dB -
HD1801
8
HD1801
HD1801
1
2
4
5
6
7
10
3
9
8