Waudio MCA-4 Bedienungsanleitung
SIGNAL
CLIP
BRIDGE
SIGNAL
CLIP
PROTECT
CH3
SIGNAL
CLIP
BRIDGE
SIGNAL
CLIP
PROTECT
POWER
4-channel pro amplifier
BASS TREBLE
-10 +10 -10 +10
BASS TREBLE
-10 +10 -10 +10
BASS TREBLE
-10 +10 -10 +10
BASS TREBLE
-10 +10 -10 +10
dB
0
8
-dB
0
8
-dB
0
8
-dB
0
8
-
ON
OFF
ACTIVE
CH1 CH2 CH4
I
O
MCA-4
OPERATION MANUAL
4-channel amplifier
MCA-4
This manual doesnot include allof the detailsof design, production,or variations ofthe equipment. Nordoes it coverevery possible
situation which mayarise during installation,operation or maintenance.
The information providedin this manualwas deemed accurateas of thepublication date.
www.prolight.co.uk
page 2 Operation Manual
1) Read theseinstructions.
2) Keep these instructions.
3) Heed allwarnings.
4) Follow allinstructions.
5) Do notuse this apparatusnear water.
6) Clean onlywith a drycloth.
7) Do notblock any ventilationopenings. Install
in accordance withthe manufacturer
s instructions.
8) Do notinstall near anyheat sources suchas
radiators, heat registers,stoves, or other
apparatus that produceheat.
9) Do notdefeat the safetypurpose of thepolarized
or grounding-type plug.A polarized plug
has two bladeswith one widerthan the other.
A grounding-type plughas two bladesand a
third grounding prong.The wide bladeor the
third prong isprovided for yoursafety.If the
provided plug doesnot fit intoyour outlet,
consult an electricianfor replacement ofthe
obsolete outlet.
10) Protect thepower cord frombeing walked on
or pinched, particularlyat plugs, convenience
receptacles, and thepoint where theyexit from
the apparatus.
11) Only useattachments/accessories specified
by the manufacturer.
12) Use onlywith a cart,stand, bracket, ortable
specified by themanufacturer,or sold withthe
apparatus. When acart is used,use caution
when moving thecart/apparatus combination
to avoid injuryfrom tip-over.
13) Unplug thisapparatus during lightningstorms
or when unusedfor long periodsof time.
14) Refer allservicing to qualified service personnel.
Servicing is required whenthe apparatus
has been damagedin any way, such aspower supply
cord or plugis damaged, liquidhas
been spilled orobjects have falleninto the
apparatus, the apparatushas been exposedto
rain or moisture,does not operatenormally,
or has beendropped.
15) Toreduce the riskof fire orelectric shock, do
not expose thisapparatus to rainor moisture.
TO PREVENT ELECTRIC SHOCK DO NOT REMOVE
TOP OR BOTTOMCOVERS. NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICINGTO QUALIFIED
SERVICE PERSONNEL.
MAGNETIC FIELD
CAUTION! Do notlocate sensitive highgainequipment such as
preamplifiers or tapedecks dirctly aboveor below theunit.
Because this amplifierhas a highpower density, it hasa strong
magnetic field whichcan induce huminto unshielded devices
that are locatednearby.The field isstrongest just aboveand
below the unit.
If an equipmentrack is used,we recommend locatingthe amplifier(s)
in the bottomof the rackand the preamplifieror other sensitive
equipment at thetop.
WATCH FOR THESE SYMBOLS:
The exclamation pointtriangle is usedto alert theuserto important
operating or maintenanceinstructions.
The lightning bolttriangle is usedto alert theuser to therisk of
electric shock.
Important SafetyInstructions
4-channel amplifier
Operation Manual page 3
CE Declaration of Conformity
Equipment Type:Audio Power Amplifiers
Model Names:MCA-4
This product hasbeen assessed againstthe following applicableStandards,
EMC (89/336/EEC Electromagneticcompatibility):
EN55013:2001 Sound andtelevision broadcast receiversand associated equipment- Radio disturbance characteristics -Limits and methodsof measurement
EN 55020:2002 Soundand television broadcastreceivers and associatedequipment - Immunitycharacteristics - Limitsand methods ofmeasurement
EN 61000-3-2:2000
Part 3-2: Limits- Limits forharmonic current emissions(equipment input currentup to andincluding 8 Aper phase)
EN 61000-3-3:1995
Part 3-3: Limits- Limitation ofvoltage changes, voltagefluctuations and flickerin public low-voltage supplysystems, for equipmentwith rated current 8 A per
phase and notsubject to conditionalconnection
LVD (73/23/EECLow VoltageDirective)
EN60065:2002 Audio, Videoand similar electronic-safetyrequirements.
4-channel amplifier
page 4 Operation Manual
Table of Contents
Important Safety Instructions .......................................................2
Declaration of Conformity ............................................................3
1 Welcome .................................................................................5
1.1 Features ...............................................................................5
1.2 How to Use This Manual ..........................................................5
2 Setup ......................................................................................6
2.1 Unpack Your Amplifier ............................................................6
2.2 Install Your Amplifier .............................................................6
2.3 Ensure Proper Cooling ............................................................6
2.4 Choose Input Wire and Connectors ...........................................7
2.5 Choose Output Wire and Connectors .........................................7
2.6 Wire Your System ...................................................................8
2.6.1 4-Channel Mode .......................................................................8
2.6.2 Stereo+Sub Mode.....................................................................9
2.6.3 Bridge-Stereo Mode ...........................................................10
2.6.4 4-Channel Mode When BUS IN Mode .............................................................11
2.6.5 Limiter ................................................................11
2.7 Connect to AC Mains ..............................................................................12
2.8 Startup Procedure ........................................................................ 12
3 Operation ........................................................................ 13
3.1 Precautions ........................................................................ 13
3.2 Front Panel Controls and Indicators ...................................... 14
3.3 Back Panel Controls and Connectors...................................... 14
4 Specifications ...............................................15
4-channel amplifier
SIGNAL
CLIP
BRIDGE
SIGNAL
CLIP
PROTECT
CH3
SIGNAL
CLIP
BRIDGE
SIGNAL
CLIP
PROTECT
POWER
4-channel pro amplifier
BASS TREBLE
-10 +10 -10 +10
BASS TREBLE
-10 +10 -10 +10
BASS TREBLE
-10 +10 -10 +10
BASS TREBLE
-10 +10 -10 +10
dB
0
8
-dB
0
8
-dB
0
8
-dB
0
8
-
ON
OFF
ACTIVE
CH1 CH2 CH4
I
O
MCA-4
4-ohm 4x300W
8-ohm Bridge-Stereo 2x600W
*1KHz Power:refers tomaximum average power in
watts at 1KHzwith 1.0% THD.
MCA-4
1 Welcome
The MCA-4 Seriesof power amplifiersfrom
represents a newera in affordable,
quality power amplification.This model isin
a uniform, ruggedchassis, incorporating the
best of tried-and-truetested design principles
and innovative features.
Modern power amplifiersare sophisticated
pieces of engineeringcapable of producing
extremely high powerlevels. They mustbe
treated with respectand correctly installed
if they areto provide themany years ofreliable
service for which theywere designed.
In addition, MCA-4includes a numberof features
which require someexplanation before theycan be
used to theirmaximum advantage.
Please take thetime to studythis manual sothat
you can obtainthe best possibleservice from your
amplifier.
Operation Manual page 5
1.1 Features
Independent Bass andTreble controlfor
each channel.
1.2 How to UseThis Manual
This manual providesyou with thenecessary
information to safelyand correctly setup
and operate youramplifier.It does notcover
every aspect ofinstallation, setup oroperation
that might occurunder every condition.
We strongly recommendyou read allinstructions,
warnings and cautionscontained in thismanual.
4-channel amplifier
Three power configerations;four channel
4 X 300W, 3 channel2 X 300W+ 1 X600W
or 2 channel2 X 600W.
Individual four channelinputs and switchable
global bus input.
Independent volume control for 4 channels,
recessed Trebleand Bass control,independent
signal indication, independentclip indication.
Bridge mode switchfor channel 1&2 and channel
3& 4, bridgeand common protectionLED indicators.
Balanced BUS INavailable.
SIGNAL
CLIP
BRIDGE
SIGNAL
CLIP
PROTECT
CH3
SIGNAL
CLIP
BRIDGE
SIGNAL
CLIP
PROTECT
POWER
4-channel pro amplifier
BASS TREBLE
-10 +10 -10 +10
BASS TREBLE
-10 +10 -10 +10
BASS TREBLE
-10 +10 -10 +10
BASS TREBLE
-10 +10 -10 +10
dB
0
8
-dB
0
8
-dB
0
8
-dB
0
8
-
ON
OFF
ACTIVE
CH1 CH2 CH4
I
O
MCA-4
page 6 Operation Manual
2 Setup
2.1 Unpack Your Amplifier
Please unpack andinspect your amplifierfor any damage
that may haveoccurred during transit.If damage isfound,
notify the transportationcompany immediately.. Save the
shipping carton asevidence of damagefor the shipper s
inspection.
We also recommendthat you saveall packing materials so
you will havethem if youever need totransport the unit.
Never ship theunit without thefactory pack.
YOU WILL NEED(not supplied):
Output wiring cables
Input wiring cables
Rack for mountingamplifier (or astable surface for
stacking)
WARNING: Before youstart to set up your
amplifier,make sure youread and observe
the Important SafetyInstructions found at
the beginning ofthis manual.
2.2 Install Your Amplifier
CAUTION: Before youbegin, make sureyour amplifier
is disconnected fromthe power source,with the
power switch inthe off position and alllevel
controls turned completelydown (counterclockwise).
Use a standard equipment rack (EIARS310B).
See Figure 2.1for amplifiers dimensions.
19-inch (48.3 cm)
You may alsostack amps without using a cabinet.
NOTE: When transporting,amplifiers should besupported
at both frontand back.
2.3 Ensure Proper Cooling
When using anequipment rack, mountunits directly ontop
of each other. Close anyopen spaces inrack with blankpanels.
DO NOT blockfront, rear orside air vents.The side wallsof the
rack should bea minimum oftwo inches (5.1cm) away from
the amplifier sides,and the backof the rackshould be aminimum
of four inches(10.2 cm) fromthe amplifier backpanel.
Figure 2.1
Dimensions
483.0 mm
375.0 mm
89.0 mm
4-channel amplifier
Operation Manual page 7
2 Setup
Figure 2.2
Balanced Input
Connector Wiring
Figure 2.3
Unbalanced Input
Connector Wiring
Figure 2.4
Left: Normal OperationWiring
Right: Bridged operationwiring
2.4 Choose Input Wire andConnectors
Recommends usingpre-built or professionally
wired, balanced line(two-conductor plus shield), 22-24
gauge cables andconnectors. Depending uponwhich
amplifier input youchoose, you shoulduse either 3-pin
male XLR connectors,TRS phone connectors,or terminal
forks at theamplifier inputs.
Unbalanced line mayalso be usedbut may resultin noise
over long cableruns.
Note: Amplifier inputconnectors not usedfor audio signal
input may beused for daisy-chainingof the audiosignal
to other components.
Figure 2.2 showsconnector pin assignmentsfor balanced
wiring, and Figure2.3 shows connectorpin assignments
for unbalanced wiring.
NOTE: Custom wiringshould only beperformed
by qualified personnel.
2.5 Choose Output Wire andConnectors
Recommends usingpre-built or professionally
wired, high quality,two- or four-conductor, heavy
gauge speaker wireand connectors.
Using the guidelinesbelow, selectthe appropriate
size of wirebased on thedistance from amplifier
to speaker.
Distance Wire Size
up to 25ft. 16 AWG
26-40 ft. 14AWG
41-60 ft. 12AWG
61-100 ft. 10AWG
101-150 ft. 8AWG
151-250 ft. 6AWG
CAUTION: Never useshielded cable foroutput wiring.
4-channel amplifier
+
+
BRI
OUTPUT ASSIGNMENT
CH 1+ :
CH 1- :
SIGNAL
GROUND
CH 2+ :
CH 2- :
SIGNAL
GROUND
CH 1+ :
CH 2+ :
SIGNAL
GROUND
OUTPUT 1
OUTPUT 2
BRIDGE 1
CH 3+ :
CH 3- :
SIGNAL
GROUND
CH 4+ :
CH 4- :
SIGNAL
GROUND
CH 3+ :
CH 4+ :
SIGNAL
GROUND
OUTPUT 3
OUTPUT 4
BRIDGE 2
+
BRIDGE CH3CH4 BUS IN CH2 BRIDGE CH1
POWER IN
BREAKER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
PUSH TO RESET
~220 240V 8A 50/60Hz
4-channel pro amplifier
MODEL: MCA-4
INPUT
MODE
+
+
CH4
BRI
CH3
+
+
CH2
BRI
CH1
INPUT
LINE BUS
NORMAL BRIDGE
LINE BUS
INPUT
LINE BUS
INPUT
LINE BUS
MODE
NORMAL BRIDGE
LIMIT
ON OFF
8 4X200W
4 4X300W
8 2X600W
(BRIDGE)
OUTPUT POWER
NORMAL MODE:
MIN 4
BRIDGED MODE:
MIN 8
.....................
.....................
www.prolight.co.uk
MODE
NORMAL BRIDGE
MODE
NORMAL BRIDGE
page 8 Operation Manual
2 Setup
2.6 Wire Your System
2.6.1 4-Channel Mode
Figure 2.5
System Wiring, 4-Channel Mode
Typical inputand output wiringis shown inFigure 2.5.
4-channel amplifier
SPEAKERS
BRIDGE CH3CH4 BUS IN CH2 BRIDGE CH1
POWER IN
BREAKER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
PUSH TO RESET
~220 240V 8A 50/60Hz
4-channel pro amplifier
MODEL: MCA-4
INPUT
MODE
+
+
CH4
BRI
CH3
+
+
CH2
BRI
CH1
INPUT
LINE BUS
NORMAL BRIDGE
LINE BUS
INPUT
LINE BUS
INPUT
LINE BUS
MODE
NORMAL BRIDGE
LIMIT
ON OFF
8 4X200W
4 4X300W
8 2X600W
(BRIDGE)
OUTPUT POWER
NORMAL MODE:
MIN 4
BRIDGED MODE:
MIN 8
.....................
.....................
www.prolight.co.uk
Operation Manual page 9
2 Setup
2.6.2 Stereo+Sub Mode
Figure 2.6
System Wiring, Stereo+Sub Mode
Typical inputand output wiringis shown inFigure 2.6.
4-channel amplifier
MODE
NORMAL BRIDGE
MODE
NORMAL BRIDGE
FULL RANGE SPEAKERS SUB WOOFER
BRIDGE CH3CH4 BUS IN CH2 BRIDGE CH1
POWER IN
BREAKER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
PUSH TO RESET
~220 240V 8A 50/60Hz
4-channel pro amplifier
MODEL: MCA-4
INPUT
MODE
+
+
CH4
BRI
CH3
+
+
CH2
BRI
CH1
INPUT
LINE BUS
NORMAL BRIDGE
LINE BUS
INPUT
LINE BUS
INPUT
LINE BUS
MODE
NORMAL BRIDGE
LIMIT
ON OFF
8 4X200W
4 4X300W
8 2X600W
(BRIDGE)
OUTPUT POWER
NORMAL MODE:
MIN 4
BRIDGED MODE:
MIN 8
.....................
.....................
www.prolight.co.uk
MODE
NORMAL BRIDGE
page 10 Operation Manual
2 Setup
2.6.3 Bridge-Stereo Mode
Figure 2.7
System Wiring, Bridge-Stereo Mode
Typical inputand output wiringis shown inFigure 2.7.
4-channel amplifier
MODE
NORMAL BRIDGE
FULL RANGE SPEAKER FULL RANGE SPEAKER
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