MBQuart NA1-400.2 Quick Start Installation Manual

Before you start

CAUTION
Many new and factory radios require a reset code when
disconnected from battery power. This is an anti-theft
feature. Before unplugging power, you must determine if
your radio/source unit requires a reset code. Check the
operation manual for your vehicle or contact the dealer.
Power cable size
Model
and fusing
It is critical to use the proper power NA1-400.2
and ground cable. Select the size
NA1-320.4
listed here for your amplifi er model.
Always use high quality copper
NA1-400.1
cable. Visit our website for multi amp
system cable recommendations.
For power cable runs over 20 feet,
Be sure to use the proper fuse size
8ga is recommended.
for each model. Some models require
an external fuse.
Installation
1
Disconnect
Negative Battery
Terminal
Place terminal in a secure
position so that it won't
accidentally contact the
negative battery post
2
Run Cables
Properly route power,
speaker and RCA cables
through the vehicle.
3
Mount Amplifi er
Choose a mounting location
that will provide adequate air
ventilation. Mount the amplifi er to
a secure surface. Do not mount
the amplifi er upside down.
4
Chassis Ground
The chassis ground connection
is critical to the performance
of the amplifi er. Choose a
location that is close to the
amplifi er. Completely scrape
away the paint and use a nut
and bolt if possible.
DO NOT USE AN EXISTING
FACTORY BOLT!
5
Power
Fuse Size Cable Size
Connection
1-20A atc
10ga
1-20A atc
1-25A atc
6
Signal Input
Connection
Connect the RCA cables to
the INPUT connectors. The
OUTPUT can be used to
provide input for a second
amplifi er.
7
Gain Control
Bare metal
Attach the chassis ground, +12V and remote wire.
It is important to make sure these connections are
very secure.
Ground - Black
Remote - Blue
+12V - Red
Turn the GAIN control completely
GAIN
counter-clockwise to minimum.
MIN MAX
8
Speaker
Connect the speaker cables to
the speaker output connectors.
Connections
Follow the diagram below
that best fi ts your speaker
confi guration.
NA1-400.1
Speaker Positive - Gray
Speaker Negative - Gray / Black
NA1-400.2
Left Positive - White
Left Negative - White / Black
Right Positive - Gray
Right Negative - Gray / Black
NA1-320.4
Left Front Positive - White
Left Front Negative - White / Black
Right Front Positive - Gray
Right Front Negative - Gray / Black
Left Rear Positive - Green
Left Rear Negative - Green / Black
Right Rear Positive - Purple
Right Rear Negative - Purple / Black
9
Positive Battery
Connection
Connect the power cable to the
positive battery terminal. The
power cable must be fused
within 18 inches of the battery
terminal.
Be prepared to disarm your vehicle's alarm and
to enter your radio / source unit code.
10
Re-connect
Negative Battery
Terminal
Re-connect the negative
battery terminal making sure it
is securely tightened.