Amplifier Settings; Adjust Two-Channel Amplifier; Adjust Mono Amplifier - MB QUART STAGE 5 Installation Manual

AMPLIFIER SETTINGS

Before preparing the source unit and dash reassembly, make the following adjustments to the setting. See
the TEST & TUNE section for additional information on final system adjustments and personalized settings.
The chart below provides general crossover and bass boost switch settings depending on the RZR tuned
package you have.
TUNED PACKAGE
MBQ-STG-5-1
MBQ-STG-3-1
MBQ-STG-2-1
MBQ-SUBSYS-1
This manual assumes the full Stage 5 System and provides the information for initial settings accordingly.
STEP 1 – ADJUST TWO-CHANNEL AMPLIFIER
Looking at the NA2-400.2 shown in Figure 15.1, make the following initial adjustments:
● X-OVER - Switch to "HP" 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 amplifier to achieve full
power without notable distortion.
● HP - Rotate control to halfway (pointing up).
This is approximately 80HZ.
● LP - Not used in this application.
STEP 2 – ADJUST MONO AMPLIFIER
Looking at the NA2-400.1 shown in Figure
15.2, 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 amplifier 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.
TWO-CHANNEL AMPLIFIER
HP-OFF-LP/BP
Switch to HP - High Pass
HP-OFF-LP/BP
Switch to HP - High Pass
HP-OFF-LP/BP
Switch to – OFF
N/A
21
MONO AMPLIFIER
Bass Boost to 0dB
Bass Boost to 0dB
N/A
Bass Boost to 0dB
Figure 15-1
HP
Figure 15-2
0dB