Autotek MM-1125.1D 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.
Model
Power / Ground
cable size
MM-1125.1D
MM-1525.1D
MM-2025.1D
It is critical to use the proper
MM3025.1D External 125A
power and ground cable. Select
MM- 4025.1D External 150A
the size listed here for your
MM-1525.2D
amplifier model. Always use high
MM-2025.2D External 100A
quality copper cable.
MM-3025.2D External 150A
MM-1525.4D
Cable size recommendations for
MM-2025.4D
multi amp systems are available
MM-3025.4D
on our website.
MM-1525.5D External 100A
Installation
Disconnect
1
negative battery
terminal
Place terminal in a secure
position so that it won't
accidentally contact the
negative battery post

Run Cables

2
Properly route power,
speaker and RCA cables
through the vehicle.

Mount Amplifier

3
Choose a mounting location
that will provide adequate air
ventilation. Mount the amplifier to
a secure surface. Do not mount
the amplifier upside down.

Chassis Ground

4
The chassis ground connection
is critical to the performance
of the amplifier. Choose a
location that is close to the
amplifier. Completely scrape
away the paint and use a nut
and bolt if possible.
DO NOT USE AN EXISTING
FACTORY BOLT!
Fuse Size Cable Size
Power
5
External 60A
Connections
External 60A
External 80A
External 50A
4ga Using spade terminals, connect the
+12V to the power cable from the
battery, the REM to the source unit
External 40A
turn-on wire and the GND to the
External 60A
chassis ground..
External 80A

Signal Input

6

Low Level RCA

Connect the RCA cables to
the INPUT connectors. The
OUTPUT can be used to
provide input for a second
amplifier.
7 Level Control
Turn the LEVEL control completely
counter-clockwise to minimum.
Speaker
8
Connections
Using spade terminals,connect
the speaker cables to the speaker
output connectors. Follow the
diagram below that best fits your
speaker configuration.
Stereo
Bare metal
Monoblock
BRIDGED
LEFT RIGHT
SPEAKER OUTPUT
BRIDGED
LEFT RIGHT
Positive Battery
9
Connection
XOVER
INPUT
LEVEL
SUBSONIC SUBSONIC
LEVEL
SPEAKER OUTPUT
Connect the power cable to the
FULL positive battery terminal. The
LP
15 35Hz 10 40Hz
9V 0.2V 6V 0.2V power cable must be fused
within 18 inches of the battery
XOVER
terminal.
PHASE LPF LPF LPF
BRIDGED
CH1 CH2
FULL LPF HPF
0 180 35 250Hz 30 250Hz 40 300Hz
Re-connect
10
Negative Battery
BASS EQ BASS EQ HPF HPF HPF
Terminal
SPEAKER OUTPUT
Re-connect the negative
battery terminal making sure it
0 10dB 0 9dB 60 1.3KHz 60 1.2KHz 10 2.5KHz
is securely tightened.
HPF
BASS EQ
10 1.5KHz
BRIDGED
LEFT RIGHT
SPEAKER OUTPUT
SPEAKER OUTPUT
Bridged
BRIDGED
BRIDGED
LEFT RIGHT
LEFT
BRIDGED
LEFT RIGHT
SPEAKER OUTPUT
SPEAKER OUTPUT
SPEAKER
SPEAKER
SPEAKER OUTPUT
BRIDGED BRIDGED
BRIDGED
CH1 CH2 CH3 CH4
Monoblock
LEFT
single woofer
BRIDGED
BRIDGED
LEFT RIGHT
LEFT
SPEAKER OUTPUT SPEAKER OUTPUT
SPEAKER
SPEAKER OUTPUT SPEAKER
SPEAKER OUTPUT
SPEAKER
BRIDGED
CH1
BRIDGED BRIDGED
CH1 CH2 CH3
SPEAKER
SPEAKER
MODE
SPEAKER OUTPUT SPEAKER
SPEAKER OUTPUT
MONO STEREO
HP
SPEAKER
MODE
Be prepared to disarm your vehicle's alarm and
BRIDGED BRIDGED
to enter your radio / source unit code.
CH3 CH4 CH3 CH4
MONO STEREO
MODE
SPEAKER OUTPUT SPEAKER OUTPUT
4CH 2CH
BRIDGED
LEFT
SPEAKER
RIGHT
SPEAKER
SPEAKER
OUTPUT
OUTPUT
SPEAKER
BRIDGED
CH3 CH4
RIGHT
multiple woofers
RIGHT
SPEAKER OUTPUT
OUTPUT SPEAKER
OUTPUT
OUTPUT
BRIDG
CH2 CH3
BRIDG
CH3
CH4
OUTPUT
OUTPUT SPEAKER
OUTPUT SPEAKER
OUTPUT