Cadence Amadeus M7000 User manual

M7000

TABLEOFCONTENTS
INTRODUCTION
1
FEATURES
2 - 4
INSTALLATIONBASICS
4 -8
INSTALLATIONWIRING
9-12
VARIOUSIMPEDANCEWIRING
13-14
SPECIFICATION
15

1
ThankyouforpurchasingaCadenceAmadeusAmplifier.
The Amadeus series is a breakthrough in sound quality and design.The
amplifier features our own hybrid digital technology that was made
famous with the venerable A7HC--only we took it one step further. Not
onlyistheAmadeusaDigitalClassDamplifierit isalsocapableofplaying
the full range audio spectrum.(All models except the M7000 which is a
puresubwooferamplifier.)
With this new circuitry,we have been able,to package large amounts of
power in very small heat sink chassis without any sacrifice to our
standards. You wont believe your ears, the sound will be perfectly
balanced and transparent.The sound of the Amadeus is enveloping and
surreal.Youwill besototallyimmersed inthesoundthatyouwillimagine
yourself sitting at the front row of a concert.We have not doubt that the
Cadence Amadeus series of amplifiers will revolutionize high fidelity car
audioreproduction.
We have spared no expense in engineering, designing and building the
Amadeus Amplifiers,creating the most high fidelity,rugged,reliable and
bestperformingamplifiersonthemarket
In fact we are so sure of the quality that we backup every Amadeus
Amplifier with our exclusive two - year warranty which exemplifies our
commitment to excellence in car audio musical reproduction. (See
enclosedwarrantycardfordetails).
Please read this installation guide carefully for proper use of your
Cadencepoweramplifier.Shouldyouneedtechnicalassistance during or
afteryourinstallationpleasecallourtechnical-linebetween9:30AMand
5:00 PM EST at 732/370-5400.Read this entire guide fully before
attemptingyourinstallation.
WARNING BE AWARE! Use of this amplifier at extreme high volumes for
extendedperiodsoftimemaycausehearinglossandor hearing damage.
During periods of prolonged high volume levels it is recommended that
you use ear safety devices. Playing Cadence amplifiers and signal
processors at high volume levels while driving will impair your ability to
hear necessary traffic sounds. While driving always keep your sound
volume at reasonable levels.We at Cadence want you listening for many
yearstocome.
When installing the unit, secure it tightly. An unmounted Amplifier in
your car can cause serious injury to passengers and damage to your
vehicleifitissetinmotionbyanabruptdrivingmaneuverorshortstop.

NICKELPLATEDTERMINALS
All the terminals on the amplifier are solid brass and satin nickel plated
for high conductivity and minimum impedance loss. The power and
ground terminals are extra large and capable of accepting 4 gauge wire.
Thespeakerterminalscanaccept8gaugewire.Whenwiringtheamplifier,
be sure to strip just enough wire that fits into the terminal so that bare
wires do not touch each other,or the amplifier chassis and cause a short
circuit.
POWERANDPROTECTIONCIRCUITRY
Amadeus full range amplifiers feature our unique IC controlled
protection circuitry. This sophisticated circuit constantly monitors the
heatsink internal temperature and various voltages, adjusting the amp
automatically and protecting it from dangerous conditions. The 2 LEDs
located on the input side of the amplifier provide indication of the
amplifier status,and the Power LED will light Blue when the amplifier is
receiving proper power, ground and remote voltages and the IC
monitoring sequence indicates the amp is functional. In case the
amplifier encounters a diagnostic condition as listed below,the second
LED will turn RED indicating a Diagnostic condition.When a diagnostic
condition is not corrected the amplifier will eventually shut off.There are
certain critical diagnostic conditions which will turn the amplifier of
immediately.
1.Speakershortcircuit.
2.InputOverload.
3.ThermalOverload.
4.ReversePolarity.
To reset the amplifier you must first diagnose what caused the problem,
correct the fault and restart the system. See the Trouble Shooting page
forfurtherdetails.
MUTECIRCUIT
The Amadeus amplifiers feature an anti-thump, mute and delay circuit.
This eliminates irritating and speaker damaging turn-on and turn-off
transientsnormallyexperiencedwithlessexpensiveamplifiers.
2

BASSDRIVEEQUALIZATIONCIRCUITRY
A narrow "Q" shelving equalization circuit is included in the amplifiers.
Theequalizationsystemis presetat45Hz.Theboostcontrolallowsyouto
add up to 12dB of Bass Drive effect. Utilize the Bass Drive to tailor your
bass response to your systemsneeds.Please keep in mind that by adding
Bass Drive you are adding stress on your speakers. Make sure that your
speakers can handle the extra power output! It would be foolish to add
12dBof gaintolowexcursion8"and10"Subwoofers.
ADR:-ACTIVEDYNAMICREGULATION
Amadeus amplifiers feature our proprietary ADR, Active Dynamic
Regulatedpowersupplies.100%HexFETdevicesareutilizedinthe power
supply for high speed(100K Hz) switching frequencies. The power
supplies are capable of suppling the main amplifier with a considerable
amount of reserve voltage for peak "high demand" situations. The ADR
circuit provides full bandwidth power for authoritative bass response,
high current output into low impedance loads and increased headroom.
The ADR is supplied with power via a high speed, high temperature
capacitance bank and 100% pure copper rails on the PCB enabling fast
transientresponsetomusicaldemands.
ARVA-AUTOMATICRAILVOLTAGEADJUSTMENT
CIRCUITRY
Amadeus amplifiers feature "ARVA" circuitry in their power supply.This
circuit constantly monitors the output stage and under high current
demandswilladjustthepowersupplyrailvoltagessothatenoughpower
is available for peak situations. The "ARVA" also improves the damping
factoroftheamplifierwhenplayinglowimpedancemonoloads.Cadence
Amadeus amplifiers have tighter sounding bass reproduction thanks to
thisuniquecircuitry.
BATTERYVOLTAGE
Cadence Amadeus amplifiers are rated and regulated to 12.8 volts and
below.Increasing voltage to 14.4 volts will increase the power output of
the amplifier in the same proportion.Maximum input voltage is 16 volts
whiletheminimumvoltageis12volts.
PROTECTIONCIRCUITRY
Cadence amplifiers incorporate many outstanding protection circuits to
help protect the amplifier from being damaged during operating
conditions.
3

Thermal Protection: When the amplifier reaches an unsafe operating
temperature of 80 degrees Celsius the amplifier will turn off. Once the
amplifier cools down, simply reset the amplifier by its Remote
connection,(turn the amplifier off and then of again once you have given
theamplifierachancetocooldown)andtheampwillonceagainbeginto
play.
If you live in hot climate we suggest installing additional cooling fans in
your trunk to exhaust the hot air which can build up in the trunk this will
helpkeep theambienttemperatureinthetrunkaslowaspossibleso that
yourampsworkflawlesslyandwithoutanymusicalinterruption.
Speaker Short Circuit Protection: Should your speakers short circuit
due to voice coil burn out, or should the amplifier sense an impedance
too low to handle, the Protection LED will light, indicating a diagnostic
condition.Turn off your system,disconnect one speaker at a time and try
to determine which speaker might be faulty. Correct the condition and
restarttheamplifier.Youmustresettheamplifiersbyturningoffandthen
on by the Remote power for proper operation after correcting a
diagnosticcondition.
Clipping or total shutdown may also be a result of a bad ground
connection or loose ground. If you find that your speakers and speaker
wiresarenotshorted,pleasecheckyourgroundconnection.
Input Overload Protection: This circuit will either shutdown the
amplifier completely or make the amplifier spurt on and off indicating
thatitisinadiagnosticcondition.Turnthesystemoffandreducethegain
on the amplifier or volume from your head unit, this should result in a
correctedcondition.
DC Offset Protection:Should any DC voltage try to enter the amplifier via
the speaker terminals it will cause the amplifier to shut down and not
operate until this condition is remedied. This circuit will also protect
damaging high DC voltages from reaching your speakers should you
amplifierevermiss-function.
INSTALLATIONBASICS
Before you begin with your installation disconnect the NEGATIVE (-)
terminalfromyourcar'sbattery.Thissafetyprecautionwillavoidpossible
short circuits while wiring your amplifier.Cadence amplifiers operate on
12-voltnegativegroundsystemonly.
4

It is recommend that you layoutyour sound system design on paper first.
This will help you during the installation so that you will have a wiring
flowchartandnotmiss-wireanyofyourcomponents.
Mount the amplifier in the trunk or hatch area of your vehicle. Never
install an amplifier in the engine compartment or on the firewall.Please
be sure to leave breathing room around the amplifier heatsink so that it
can dissipate the heat it produces efficiently. The amplifier can be
installedeitherhorizontallyorvertically.
Whenmountingtheamplifieronthetrunkfloor,besuretowatchforyour
gas tank, gas lines and electrical lines.Do not drill or mount any screws
wheretheymightpenetratethegastankofyourcar.
POWER/GROUNDWIRING
The Amadeus amplifiers are supplied with built-in fuses,we suggest that
you construct a Red wiring harness with 2 additional fuses. One fuse
should be located near the car battery.This fuse near the battery offers
protectionagainstdamagefromshort circuits tothecarchassisbetween
the battery and the amplifier.A second fuse closer to the amplifier offers
additional safety to the amplifier itself.This fused red power wire should
beattachedtotheamplifierpowerterminalmarked12V+.
Thewireharness should be made of redprimary cable of at least4gauge.
The harness should terminate in a large ring terminal for connection
directly to the positive terminal of the car battery. Use a spade plug to
attachthewire,whichconnectstotheamplifierlocationmarked12V+.
A second black color wire of equal gauge should be used as a ground
connection to a welded chassis member. When connecting the ground
wire make sure that there is no paint or other insulator blocking a good
ground connection. When installing multiple amplifiers, mount them in
close proximity so that they can all share the same ground point.Attach
theblackgroundwiretotheamplifierscrewterminalmarkedGround.
We recommend that you use our Cadence ZIK-8 or ZIK-4 amplifier
installation kit,which contains all the cabling and accessories necessary
foragood,reliableinstallation.
5

Overtheyearswehavereceivedmanyanampbacktoourservicedepartment
with melted power/ground terminals. The cause of this is a bad ground
connection.Whenthereisalackofgoodgroundheatbuildsupattheweakest
pointwhichisthecontactscrewoftheterminal.
Over time the heat generated will begin to melt the terminal. It is a good
practice to feel the power and ground wires with your hands, near their
amplifier connection after having played the amp for a while.If the wires feel
hot to the touch you probably have a bad or loose connection.If you are sure
of your connections and the wires still feel hot to the touch, you should
upgradethegaugeofthewiretonextheaviestgauge.
REMOTETURNONCONNECTION
The remote turn on connection is located on the barrier strip next to the
powerandgroundconnections.Thisconnectionisresponsibleforturningthe
amplifier on and off with the rest of the system.A smaller gauge wire can be
usedtomakethisconnectiontoyourradio'spowerantennalead.Shouldyour
system not have any turn on leads, you can wire the remote terminal to an
accessorylead,whichturnson,withyourignition.
SETTINGTHECONTROLS
AUDIOPREAMPINPUT
The Amadeus Series amplifiers feature RCA preamp inputs.Run RCA cables
from your sound source to the inputs of the amplifier.We suggest the use of
high quality shielded RCA patch cords to help reduce and eliminate
unwantedelectricalnoisefromyoursystem.
BesuretoruntheRCAcablesontheoppositesideofthevehiclethatyouused
tocarrythepowerandgroundleadsoftheamplifier.
USINGTHEM7000AMPLIFIERINCONJUNCTIONWITH
AMULTI-CHANNELAMPLIFIER
The Amadeus M7000 amplifier is of course meant for sub bass applications
and as such needs to be used in conjunction with a second amplifier for a
completesystem.
Connect the Line Out of the M7000 amplifier to the Line Input of a multi-
channelamplifier.Setthemulti-channelamplifier'sinternalcrossovertoHigh
Pass,asitwilldrivethehighfrequencyspeakers,suchasseparates,coaxials,or
platetypespeakers,typicallymountedinthedoorsorkickpanels.
USINGTHEBUILT-INLOWPASSELECTRONICCROSSOVER
All the Amadeus Series amplifiers feature 24dB per octave fully adjustable
low-passandhighpasselectroniccrossovers.
For Low Pass systems,set the crossover mode switch to LOW PASS. Now the
6

7
ADJUSTINGTHESYSTEM
Oncethesystemis operational,the first thing todo,is set all crossoverpoints
to approximate settings. In the case of the basic subwoofer system, set the
Low Pass filter crossoverat 100 Hz or so.Set the Bass Boost equalizer control
to 0 dB.
Now you should set the amplifiers LEVEL adjustment.The knob accessible on
the front of the amplifier marked Input Level adjusts the input sensitivity
from150mVto9Volts.
To adjust the input sensitivity, turn the control using a small flat head
screwdriver fully counter clock wise to the minimum position. Do not apply
any pressure while turning as this might break the control unit.Adjust your
radio volume level to maximum marking and until audible distortion occurs.
When you begin to hear any distortion in the sound,back down a notch and
your amp is set. If no audible distortion occurs, begin to raise the amplifier
gain until there is distortion and then turn it down a notch. It is helpful to
have a second person to help you set the gain.When setting up a multi-amp
system, set each amplifier gain separately.Start off with the bass amplifier,
thenadjustthehighsamplifierlevelcontroltomatch.
Thelevelcontrolofanycaramplifiershouldnotbemistakenforavolume
control.It is a sophisticated devicedesigned to match the output level of
your source unit to the input level of the amplifier. Do not adjust the
amplifiergaintomaximumunlessyourinputlevelrequiresit.
Ifyourunithasbeenprofessionallyinstalledpleasedonotchangethegain
settingssetbytheinstaller,heistheprofessional!
You system can also be extremely sensitive to noise when the LEVEL is set to
maximum and does not match your input signal.The gain adjustments need
tobemadeonlyoncewhenfirstsettingupthesystem.

LOW INPUT
LINE OUT
Min Max
SUB
SONIC POWER
PHASE
SHIFT
LEVEL LOW
PASS SPEAKER
PROTECTION
MASTER SLAVE
BASS
BOOST
0 +18dB
50 150Hz15 40Hz 0 180
BRIDGED MODE
L
RDATA LINK
Capacitor
DistributionBlock
In-LineFuseHolder
Remote
Control
BATTERY
ToREMOTETURN-ON
fromHEADUNIT
GROUND
POWER
+12V REM GND
FUSES
REMOTE
From OUTPUTS of
HEAD UNIT Woofer
LINE OUT
to SUB amp
LINE IN
8

LOW INPUT
LOW INPUT
LINE OUT
LINE OUT
Min
Min
Max
Max
SUB
SONIC
SUB
SONIC
PHASE
SHIFT
PHASE
SHIFT
LEVEL
LEVEL
LOW
PASS
LOW
PASS
SPEAKER
SPEAKER
MASTER
MASTER
SLAVE
SLAVE
BASS
BOOST
BASS
BOOST
0
0
+18dB
+18dB
50
50
150Hz
150Hz
15
15
40Hz
40Hz
INPUT SENSITIVITY
0
0
180
180
BRIDGED MODE
BRIDGED MODE
L
L
R
R2-8V
100mV-2V
DATA LINK
DATA LINK
MASTER
MASTER
SLAVE
SLAVE
BRIDGED MODE
BRIDGED MODE
From OUTPUTS of
HEAD UNIT
BRIDGED SWITCH:
MASTER POSITION
BRIDGED SWITCH:
SLAVE POSITION
SPEAKER
IMPEDANCE
2 OHMS!
｢｡｢｡ ｢｡｢｡
9
POWER
PROTECTION
POWER
PROTECTION
LINE OUT
to SUB amp
LINE IN
2Ohm PowerwhentwoM7000arestrappedtogetheris2000Watts.

HOWTOTROUBLESHOOTASYSTEM
GENERAL
A car stereo system consists of many different pieces of equipment
connected together, and a logical process of elimination will find the
problem area, by isolating sections, and checking them one at a time.
Before following the instructions below, check and double check all
wiringandconnections.
TOOLSNEEDED
Thefollowingtoolswillhelpinfindingproblems:
A general purpose multi meter, capable of checking voltage and
resistance,is perhaps the most useful pieceof test gear that anyinstaller
canown.
You may also need a test speaker,and a head unit,as these will be handy
for temporary connection for checking purposes when you are working
inthetrunkofthevehicle.
NOSOUND
Thisisprobablythemostperplexingproblemtofind.
1.Reducetheampgainto9voltsandunplugtheRCAcablesandspeakers
fromtheamplifier.
2. Check with your multi meter that each amplifier in the system has
proper12voltDCsupplyonitispowerterminals.
3.Alsocheckthattheremoteturnonterminalhas12voltonit.
If all seems well, and the amplifier power indicators lights without any
diagnosticlight:
4. Connect the head unit RCA directly to the amplifier (eliminating any
signalprocessorswhichyoumayhave installed in between the head unit
andamplifier)andturnonthesystem.
IfthepowerLEDisonwithnoDiagnosticLED,continue:
5.Connecteachspeakeroneatatimetoseewhichspeakerputstheamp
indiagnostic.
By utilizing this process of elimination you can determine where the
cause of the problem is. If the amplifier goes in to diagnostic with
nothing connected to it, and you are sure of proper power and
ground,please contact our service department for further help a 732
3705400 10

AMPLIFIEROVERHEATINGANDSHUTTINGDOWN
The most common cause for this problem is when amplifiers are
overloaded with speaker impedances lower than what they are rated for.
Double-check the impedance of your speakers and their wiring. Also
checkthatnospeakerleadsareshortedtothevehiclemetalchassis.
AMPLIFIERGOINGINTOPROTECTION
When an amplifier goes into protection mode,we have to first establish
whethertheproblemlies with the amplifier,or whether it is somethingin
theinstallation.DisconnectallRCAandspeakercables,leavingthepower,
ground and remote connections.Turn the system on,and if the amplifier
nowpowersupproperly,add theRCAcables,and seeifthe amplifiergoes
into protection.If not,proceed by reconnecting the speaker leads etc.By
following this simple process of elimination, the fault can be diagnosed
quiteeasily.
LACKOFBASS
Thelackofbasscanbeattributedtovariouscauses.
Checkthattheproperrecommendedenclosureshavebeenusedforthe
woofers.
Checkthephasingofmultiplewoofersconnectedtooneamplifier,aswell
as those connected to multiple amplifiers. If the positive and negative
terminalsarereversedinatwowoofersystems,youwillgetacancellation
which sounds like a lack of bass. Always double check your wiring for
properphase.
Position of woofer enclosures in the vehicle will also affect bass output.
You should experiment with different box positions, firing forward,
backwardorupwardstoseewhichwayyougetmorebassintothecabin.
11

4OhmCompetitionrating 50Watts
500Watts
1000Watts
50Hz-150Hz
15Hz-40Hz
0 - 180
15Hz-150KHz
>100dB
>500@100Hz
<0.03%
200mV-9Volt
12.5"x7.25"x2.6"
M7000
2 Ohm Power
1 Ohm Power
VariableLowPassFilter
VariableSubSonicFilter
PhaseShiftControl
FrequencyResponse
Signal/NoiseRatio
DampingFactor
MinimumTHD
InputVoltage
Dimensions(LxWxH)
12
2Ohm PowerwhentwoM7000arestrappedtogetheris2000Watts.

4XDUALVC8OHMSPEAKERWITHSERIESVOICECOILS,
ALLINPARALLEL
PARALLEL:SINGLEVOICECOILSPEAKERS
SERIES:SINGLEVOICECOILSPEAKERS
4+4
OHM
4+4
OHM
4+4
OHM
4+4
OHM
4OHM 4OHM
2OHM
2OHM
TO
AMPLIFIER
2OHM
TO
AMPLIFIER
4OHM
TO
AMPLIFIER
2OHM
13

SERIES:DUALVOICE
COILSPEAKERS PARALLEL:
DUALVOICECOIL
SPEAKERS
2XDUALVC2OHMSPEAKERSWITH
SERIESVOICECOILS,ALLINPARALLEL
4+4
OHM
2+2
OHM
1+1
OHM
4+4
OHM
8OHM
TO
AMPLIFIER
4OHM
TO
AMPLIFIER
2OHM
TO
AMPLIFIER
2 OHM
TO
AMPLIFIER
2+2
OHM
2+2
OHM
2OHM
TO
AMPLIFIER
Please note that the minimum impedance load for single Cadence
AmadeusSeriesamplifiersis2ohmstereoand4ohmmonobridged.
Lower impedance loads will cause overheating and may damage the
amplifiers.
Do not mix different type and differentimpedance speakers in the series
and/or parallel combinations, as unequal power sharing and acoustic
outputswillresult.
14