Axxera ULTRA SLIM AX70SM Operating instructions

INSTALLATION / OWNER'S MANUAL
Mobile Power Amplifiers
ULTRA SLIM SERIES
AX70SM
AX47S

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

AX47S
AX70SM
Gain
Crossover Mode
High & Low Level Inputs
Crossover Frequency Control
1
2
3
Subsonic Filter
Bass Boost
Low Pass Filter
4
5
6
7
INSTALLATION
Audio Inputs and Controls
4
2 41 3 2
41
3
56
1
37

AX47S
AX70SM
Speaker Connections
Fuse
+12VDC Battery Connection
1
2
3
Remote Turn On
Ground Connection
4
5
INSTALLATION
Power and Speaker Connections
5
12543
12543

REM (Remote Turn On)
SPEAKERS
RCA CABLES
GROUND
FUSE
12V BATTERY
MAXIMUM
12V DC
(Power)
2-8 ohms
Fuse Rating
When replacing fuses, make sure new fuse
is the correct type and amperage. Using an
incorrect fuse could damage the amplifier.
AX70SM 30A x 1
AX47S 30A x 1
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.
AX70SM 4 ga.
AX47S 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
AX47S and AX70SM is 2 ohms. Use of loads
lower thant hese is not recommended and
may cause amplifier damage.
Input Signal Connections
Low Level Input (RCA)
Low level (RCA) inputsignal 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.
(Front)
(Rear)
4 Speakers (stereo)
Typical Stereo Wiring
(2 ohms minimum)
L
R
Note: Do not use both low and high level inputs
at the same time - connect only one or the other.
AX47S speaker connections shown
7
INSTALLATION
Amplifier Connections

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
Subsonic Filter
(AX70SM)
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
Weak bass Speaker(s)arewiredoutofphase
Check(+)and(-)speaker
connections
(Observecorrectpolarity)
INSTALLATION
Troubleshooting
9

Power [email protected] <1% THD+N
•140 Watts x 1 channel @ 4 Ohms
•250 Watts x 1 channel @ 2 Ohm
Peak Music Power Output: 700 Watts
Signal to noise ratio: >80dB (THD < 0.5% @ 4Ω, 14.4V)
Frequency response: 20Hz -250Hz (-3dB)
Amplifier dimensions: 1.5” x 3” x 5.9” (13 x 76 x 150 mm)
Power [email protected] <1% THD+N
•74 Watts x 4 channels @ 4 Ohms
•92 Watts x 4 channels @ 2 Ohms
Peak Music Power Output: 400 Watts
Signal to noise ratio: >90dB (THD < 0.5% @ 4Ω, 14.4V)
Frequency response: 10Hz -35kHz (-3dB)
Amplifier dimensions: 1.5” x 3” x 5.9” (13 x 76 x 150 mm)
AX70SM
INSTALLATION
Specifications
AX47S

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[email protected]
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.

DualElectronicsCorp.
TollFree:1-866-382-5476
Monday-Friday,9AM-5PM,EST
www.axxeraaudio.com
©2014DualElectronicsCorp.
NSA1113-V01