MB QUART MBQR-SUB-2 - Amplifier Wiring and Settings; Amplifier Wiring Diagram and Connections; Initial Mono Amplifier Settings

11
AMPLIFIER SETTINGS
AMPLIFIER WIRING
If you are connecting the amplier into an existing Stage 2 system - either
MBQR-STG2-RAD-2 or MBQR-STG2-RC-1, simply plug in the unused power/ground
connector of the the mono amplier into the Stage 2 harness. At the same time, if
you have (or will later install) optional illuminated MB Quart SR1-120RGB LED light
rings for the 8” compression horn front or rear speakers, connect the red/black wires
as well. See Figure 9-1 for the connection diagram.
If you are connecting the amplier on its own -
please refer to the electrical connections outlined
in the NA2-400.1 installation manual available at
MBQuart.com.
It’s recommended that you connect the amplier’s
power and ground wiring at the RZR bus bar
location as described on page 3.
Use at least 10 AWG power and ground wire. Be
sure to fuse the amplier’s main power wire with
a 30 ampere fuse placed close to the point of
connection at the bus bar. Connect the amplier’s
remote turn-on wire to your source unit’s remote
turn-on output (typically a blue wire).
Depending on your chosen amplier location if not
using one of the MB Quart vehicle-specic RZR
amplier mounting plates, you may need to extend
the wire from the subwoofer to connect with the
amplier.
AMPLIFIER SETTINGS
This manual provides the information for initial settings on the NA2-400.1 subwoofer amplier accordingly.
TUNED PACKAGE TWO-CHANNEL AMPLIFIER MONO AMPLIFIER
MBQR-SUB-2 N/A Bass Boost to 0dB
LPF to 100Hz
STEP 1 - ADJUST MONO AMPLIFIER
Looking at the NA2-400.1 shown in Figure 9.2, make the following initial adjustments:
● BOOST - Switch to “0dB” position.
● LEVEL - Rotate control to halfway (pointing
up). This represents an input level that will
closely match the source unit’s output at full
volume allowing the amplier to achieve full
power without notable distortion.
● LPF - Rotate control to halfway (pointing up).
This is approximately 100HZ.
● SUBSONIC - Leave in the lowest (15Hz
position). If the subwoofer has trouble with
the lowest notes in your choice of music upon
testing, you can adjust up slightly about 1/4
turn.
Figure 9-2
0dB
Figure 9-1