Polarity; Left And Right Inputs; Left And Right Outputs; Crossover - Mackie HRS120 Owner's Manual

High resolution powered subwoofer
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POLARITY

ϒ
0
ϒ
180
THX = 0˚
This switch reverses the polarity of the sig-
nal going to the subwoofer amplifier by 180º.
It has no effect on the signal at the LEFT and
RIGHT OUT or the MASTER OUT.
There is no right or wrong setting for this
switch. Listen to the overall blend of the sub-
woofer with the rest of the system, and select the
switch position that gives you the best sound.

LEFT AND RIGHT INPUTS

Balanced XLR female and unbalanced RCA
female connectors are provided for the left and
right inputs. Connect the full-range line-level
signal from the mixer or preamplifier to one of
these input jacks.
The connectors are wired as follows (per the
AES/IEC standard):
XLR
Hot (+)
Pin 
Cold (–)
Pin 
Shield (Ground)
Pin 1
If connecting a single subwoofer or LFE
output to the HRS10, use the LEFT (MONO)
input with the FILTER BYPASS switch pushed
in.

LEFT AND RIGHT OUTPUTS

Balanced XLR male and unbalanced RCA fe-
male connectors are provided for the line-level
left and right high-pass outputs. Connect these
to the inputs of the main speakers (if they are
powered speakers) or to the inputs of the am-
plifier powering the main speakers.
The signal at the left and right outputs is
post-crossover. The low-pass output from the
crossover goes to the internal power amplifier
in the HRS10, while the high-pass output goes
to these output jacks.

CROSSOVER

SUB
80Hz
55Hz
CROSSOVER
THX = 80Hz
This adjusts the crossover frequency for the
built-in 4 dB/octave Linkwitz-Riley variable
crossover. The crossover frequency can be ad-
justed from 55Hz to 110Hz.
POLARITY
RCA
Tip
Shield
SAT
110Hz
INPUT/OUTPUT
INPUT/OUTPUT
POWER
POWER
SUBSONIC FILTER
FILTER BYPASS
FILTER SELECT
LFE GAIN
INPUT SENSITIVITY
OFF
NORMAL
IN
SUB
SAT
80Hz
55Hz
110Hz
CROSSOVER
L
IN
R
SUB
SAT
80Hz
55Hz
110Hz
CROSSOVER
IN
RIGHT
SLAVE/MASTER
SLAVE
IN
S
M
POLARITY &
INPUT SENSITIVITY ACTIVE
SUBWOOFER BYPASS
FOOT SWITCH
REMOTE INDICATOR
OPEN - SUB ON, L/R BASS MANAGED
*MAX OPEN CIRCUIT 24V
*MAX CLOSED CIRCUIT 1A
CLOSED - SUB DEFEAT, L/R FULL RANGE
REMOTE INDICATOR CIRCUIT CLOSED WHEN SUB BYPASSED
*TO INSURE PRODUCT SAFETY, POWER SUPPLIES MEETING CLASS-2 INSULATION
REQUIREMENTS SHOULD ONLY BE USED WITH THIS CONNECTOR
SUB BYPASSED
FLAT
THX PM3 SETTINGS
15Hz
SUBSONIC FILTER
FILTER IN
FULL RANGE
FILTER BYPASS
FILTER SELECT
VARIABLE
VARIABLE
110Hz ELLIPTICAL
110Hz ELLIPTICAL
LFE GAIN
INPUT SENSITIVITY
0dB
+
10dB
NORMAL
SUB
SAT
80Hz
ϒ
0
POLARITY
ϒ
180
LEFT
(MONO)
OUT
L
OUT
R
OUT
MASTER
OUT
PROCESSED SIGNAL
9
(N/A)
POLARITY
CROSSOVER CONTROLS

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