Axxera MINI Series Operating instructions

INSTALLATION / OWNER'S MANUAL
Mobile Power Amplifiers
MINI SERIES
AX450DM
AX4150D

2
INSTALLATION
Preparation
Please read entire manual before installation. Due to the technical nature of
amplifiers, it is highly recommended that your Axxera amplifier is installed by a
professional installer or an authorized dealer.
Before You Start
• Disconnect negative battery terminal. (consult a qualified technician for
instructions)
• Avoid installing the amplifier where it would be subject to high temperatures, such
as from direct sunlight, or where it would be subject to dust, dirt or excessive
vibration.
• Use extreme caution when drilling holes to avoid damaging fuel lines or existing
vehicle wiring.
• All amplifier installations require power, signal and speaker wires (not included).
• An amplifier installation kit (sold separately) is highly recommended to facilitate the
installation. Consult your dealer for recommendations.
Mounting Location
• Choose a mounting location for the amplifier. Suggested locations include under a
seat or in the trunk.
• The amplifier can be mounted horizontal (recommended) or vertical. For optimum
performance, make sure to provide at least 1" of space around all sides. Do not
mount the amplifier under carpets or where airflow is restricted.
• Do not install the amplifier where it may be exposed to moisture.
• The optimum mounting location varies between vehicles. Remember to test all
amplifier functions before completing the final mounting procedure.
TYPICAL MOUNTING METHOD

NOTE:
Be sure to follow specific instructions included with your amplifier installation
kit (not included with this amplifier). The information below should be used as a
general guideline only.
Power Wire (+12V)
• Disconnect negative battery terminal before proceeding. Consult a qualified
technician for instructions if you are unsure.
• Plan wire routing before cutting any wires to length. Begin by routing the power
+12V wire from the battery to the amplifier location. Use a grommet when running
wires through the firewall or metal openings. Avoid running the power wire near
existing vehicle wiring to prevent induced noise from entering the audio system.
• Use extreme caution when drilling holes to avoid damaging fuel lines or existing
vehicle wiring.
• The +12V wire MUST be fused within 18" of the battery for protection of the
vehicle’s electrical system.
Ground Wire (GND)
• The amplifier ground wire should be as short as possible (no more than 36" or
1 meter). Choose a clean unpainted section of metal or the vehicle chassis when
attaching the ground connection. Be sure to clean the area of any dirt or grease.
Remote Turn-on Wire (REM)
• The remote turn-on wire connects to the head unit's amplifier turn-on lead or power
antenna output.
Speaker Wires
• Choose adequate gauge speaker wire depending on your exact amplifier/speaker
combination. Be sure to observe polarity when connecting.
• Do not ground any speaker wires or connect any speaker wires together.
Input Signal
• The amplifier's input signal connects to the head unit's low level (RCA) or high level
(speaker wire) outputs.
• Low level input signals deliver the best performance. If unavailable, use the high level
inputs - when interfacing with factory head unit for instance.
CAUTION
• Do not use both low and high level inputs at the same time. Connect only one or the
other.
• Keep low level inputs away from any power wires to avoid engine noise.
• Never run any wires underneath or outside the vehicle.
3
INSTALLATION
Connection Descriptions

INSTALLATION
Audio Inputs and Controls
4
Gain
Crossover Mode
Hi-Level Input
Crossover Frequency Control
RCA Input
1
2
3
Subsonic Filter
Bass Boost
Low Pass Filter
Remote Bass Control
4
5
6
7
8
9
5
31 6 7 8 9
3
12 4 54 2 13
AX4150D
AX450DM

INSTALLATION
5
Power and Speaker Connections
Speaker Connections
Fuse(s)
+12VDC Battery Connection
1
2
3
Remote Turn On
Ground Connection
4
5
54
123
543
1
AX450DM
AX4150D

REM (Remote Turn On)
SPEAKERS
RCA CABLES
GROUND
FUSE
12V BATTERY
12V DC
(Power)
2-8 ohms
18” (1.5 FEET)
MAXIMUM
Fuse Rating
When replacing fuses, make sure new fuse
is the correct type and amperage. Using an
incorrect fuse could damage the amplifier.
AX450DM 40A x 2
AX4150D 40A x 2 (located under plate)
Power/Ground Wire Size
For optimum performance, use only the wire
size listed below or larger. Make sure to use
the same size power and ground wire.
AX450DM 4 Ga.
AX4150D 4 Ga.
Main Power Connections
Connect +12V, GND and REM wires accordingly. A suitable fuse MUST be installed
on the +12V lead within 18" of the battery for protection of the vehicle’s electrical
system.
6
INSTALLATION
Typical Wire Routing
No more than 36"
(1 meter)

High-Level Input
(speaker cables)
Low-Level Input
(RCA)
Speaker Connections
Connect speaker wires
observing polarity. The
minimum impedance load
for the AX4150D is 2 ohms
stereo and 2 ohms bridged.
Use of loads lower than these
is not recommended and may
cause amplifier damage. The
AX4150D can be wired for
stereo, bridged or stereo/
bridged simultaneous operation.
Input Signal Connections
Low Level Input (RCA)
Low level (RCA) input signal is preferred for best performance. Typical trunk-mount
amplifier installations require a 17-20 foot RCA cable. Most trucks and under-seat
applications require a 6-9 foot RCA cable. Using twisted pair construction RCA
cables will minimize noise.
High Level Input
(Speaker Wire)
High level inputs should only be
used when RCA outputs are not
available from the head unit.
Connect the head unit speaker
outputs to the high level input
connector as shown below. The
black wire (signal reference
ground) may or may not require a
connection to chassis ground
- depending on your particular
installation.
L
R
Note: Do not use both low and high level inputs
at the same time - connect only one or the other.
7
INSTALLATION
Amplifier Connections
Subwoofer (mono)
Typical Bridged Wiring
(2 ohms minimum)
2 Speakers (stereo)
T
ypical Stereo Wiring
(2 ohms minimum)
Typical speaker connections shown

The input level control (gain) is used to obtain the
best possible match between the head unit audio
output and the amplifier input. Begin by turning the
input level control fully counterclockwise. Next, turn
up the head unit volume control around 3/4 of
the way up. Adjust the input level control clockwise
until audible distortion is heard, then slightly
counterclockwise to provide the best match.
Repeat for all input level controls.
The crossover is used to filter out frequencies
above or below a certain point. Choose LPF when
using the amplifier with subwoofers, HPF when
using with midrange/tweeter combinations and
FLAT when using with coaxial-type speakers.
Note: Choose FLAT when using the amplifier in
stereo/bridged simultaneous mode. In this mode,
passive crossovers are required. Failure to use
the correct passive components may damage
the amplifier and/or speakers. Consult a qualified
professional for recommendations.
This control allows precise adjustment of the
crossover frequency.
This control provides additional boost @ 45Hz when
used with subwoofers. Adjust this control with
caution - as improper use can damage speakers!
Setting this control to the desired frequency will
limit harmful frequencies below the setting from
going to the subwoofer(s), preventing possible
damage from frequencies that subwoofers are not
designed to handle.
The green LED indicator illuminates during normal
operation (POWER) and the red LED indicator
is visible when the amplifier detects a fault
(PROTECT).
Input level Control
Crossover Mode
Crossover
Frequency Control
Bass Boost
(AX450DM)
Subsonic Filter
(AX450DM)
LED Indicators
INSTALLATION
Configuration/Setup
8

Problem Cause Action
Unit will not turn
on
(no power LED
indicator)
+12V wire not connected or incorrect
voltage. REM wire not connected or
incorrect voltage
Check connections for proper
voltage (11~16VDC)
GND wire not connected Check connection to ground
Fuse(s) blown Replace fuse(s)
Unit has power -
LED is green (but
no sound)
Speaker wires not connected Check connections at speakers
Volume turned all the way down Increase volume level at head unit
One or more speaker wires touching
each other or touching chassis
ground
Insulate all bare speaker wires from
each other and chassis ground
Speaker(s) defective or damaged Check/replace speaker(s)
Input signal not connected Check high or low level inputs for
proper connection
Unit blows fuse(s)
Incorrect fuse rating Use fuse(s) with correct rating
+12V wire touching chassis ground Check for pinched wire
Speaker(s) defective or damaged Check/replace speaker(s)
Engine noise
Bad ground connection Make sure amplifier is grounded to
clean bare metal
Signal ground loop or RFI (radio
frequency interference)
Re-route RCA cables from existing
high current wiring
LED illuminates
red
(protect mode)
One or more speaker wires touching
each other or touching chassis
ground
Insulate all bare speaker wires from
each other and chassis ground
Speaker(s) defective or
damaged internally (shorted) Check/replace speaker(s)
Speaker load less than 2 ohms
(stereo). Speaker load less than 4
ohms (bridged)
Adjust speaker load - amplifier will
not operate at less than 4 ohms
when bridged
Distorted audio
output
Incorrect input signal type or
input level too high
Check connections and reduce/
adjust input level
Low audio output Incorrect input signal type or
input level too low
Check connections and increase/
adjust input level
INSTALLATION
Troubleshooting
9

INSTALLATION
Specifications
Power Output (14.4VDC, 20Hz~150Hz @ 2ohms):
•280 Watts RMS x 1 channel @ 4 Ohms
•500 Watts RMS x 1 channel @ 2 Ohms
•900 Watts RMS x 1 channel @ 1 Ohm (bridged)
Peak Music Power Output: 2000 Watts
Signal to noise ratio: > 80dB (THD < 0.5% @ 4Ω, 14.4V)
Frequency response: 20Hz -250Hz (-3dB)
Amplifier dimensions: 1.6” x 4.7” x 10.2” (40 x 120 x 260 mm)
Power Output (14.4VDC, 20Hz ~20kHz @ 4ohms):
•150 Watts RMS x 4 channels @ 4Ohms
•260 Watts RMS x 4 channels @ 2Ohms
•500 Watts RMS x 2 channels @ 4Ohms (bridged)
Peak Music Power Output: 2000 Watts
Signal to noise ratio: > 80dB (THD < 0.5% @ 4Ω, 14.4V)
Frequency response: 10Hz– 35kHz (-3dB)
Amplifier dimensions: 1.6” x 4.7” x 10.2” (40 x 120 x 260 mm)
AX450DM
AX4150D

INSTALLATION
One-Year Limited Warranty
This warranty gives you specific legal rights.
You may also have other rights which vary
from state to state.
Dual Electronics Corp. warrants this product
to the original purchaser to be free from
defects in material and workmanship for
a period of one year from the date of the
original purchase.
Dual Electronics Corp. agrees, at our
option, during the warranty period, to repair
any defect in material or workmanship
or to furnish an equal new, renewed or
comparable product (whichever is deemed
necessary) in exchange without charges,
subject to verification of the defect or
malfunction and proof of the date of
purchase. Subsequent replacement products
are warranted for the balance of the original
warranty period.
Who is covered? This warranty is extended
to the original retail purchaser for products
purchased from an authorized Dual dealer
and used in the U.S.A.
What is covered? This warranty covers
all defects in material and workmanship in
this product. The following are not covered:
software, installation/removal costs,
damage resulting from accident, misuse,
abuse, neglect, product modification,
improper installation, incorrect line voltage,
unauthorized repair or failure to follow
instructions supplied with the product, or
damage occurring during return shipment of
the product. Specific license conditions and
copyright notices for the software can be
found via www.dualav.com.
What to do?
1. Before you call for service, check the
troubleshooting guide in your owner’s
manual. A slight adjustment of any
custom controls may save you a service
call.
2. If you require service during the
warranty period, you must carefully
pack the product (preferably in the
original package) and ship it by prepaid
transportation with a copy of the original
receipt from the retailer to an
authorized service center.
3. Please describe your problem in writing
and include your name, a return
UPS shipping address (P.O. Box not
acceptable), and a daytime phone number
with your shipment.
4. For more information and for the location
of the nearest authorized service center
please contact us by one of the following
methods:
• Call us toll-free at 1-866-382-5476
• E-mail us at [e-mail]
Exclusion of Certain Damages: This warranty
is exclusive and in lieu of any and all other
warranties, expressed or implied, including
without limitation the implied warranties of
merchantability and fitness for a particular
purpose and any obligation, liability, right,
claim or remedy in contract or tort,
whether or not arising from the company’s
negligence, actual or imputed. No person or
representative is authorized to assume for
the company any other liability in connection
with the sale of this product. In no event shall
the company be liable for indirect, incidental
or consequential damages.

Details and specifications mentioned in this document may be updated and subject to change without notice.
To access the latest document, please check the product website.
Dual Electronics Corp.
Toll Free: 1-866-382-5476
Monday-Friday, 9AM-5PM, EST
www.axxeraaudio.com
©2015 Dual Electronics Corp.
NSA0115-V01