Waudio ZENITH 3000 User manual

OPERATION MANUAL
This manual doesnot include allof the detailsof design, production,or variations ofthe equipment. Nordoes it coverevery
possible situation whichmay arise duringinstallation, operation ormaintenance.
The information providedin this manualwas deemed accurateas of thepublication date.
ZENITH SERIES
www.prolight.co.uk
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ZENITH 3000

page 2 Operation Manual
1) Read theseinstructions.
2) Keep theseinstructions.
3) Heed allwarnings.
4) Follow allinstructions.
5) Do notuse this apparatusnear water.
6) Clean onlywith a dry cloth.
7) Do notblock any ventilationopenings. Install
in accordance withthe manufacturer sinstr-
uctions.
8) Do notinstall near anyheat sources suchas
radiators, stoves, orother apparatus that
produce heat.
9) Do notdefeat the safety purpose of thepolari-
zed or grounding-typeplug. A polarized plug
has two bladeswith one wider than the other.
A grounding-type plughas two blades and a
third grounding prong.The wide blade or the
third prong isprovided for your safety. Ifthe
provided plug doesnot fit into your outlet,
consult an electricianfor replacement of the
obsolete outlet.
10) Protect thepower cable frombeing walked on
or pinched, particularly at plugs,andthe point
where they exitfrom the apparatus.
11) Only useattachments/accessories specified
by the manufacturer.
12) Use onlywith a cart, stand, bracket,or table
specified by themanufacturer, or sold with the
apparatus. When acart is used, use caution
when moving thecart/apparatus combination
to avoid injury fromtip-over.
13) Unplug thisapparatus during lightning storms
or when unusedfor long periods of time.
14) Refer allservicing to qualified service perso-
nnel.Servicing is required whenthe apparatus
has been damagedin any way, such as power-
supply cord orplug is damaged, liquid has
been spilled orobjects have fallen into the
apparatus, the apparatushas been exposed to
rain or moisture,does not operate normally,
or has beendropped.
15) To reduce the risk of fireor electric shock,do
not expose thisapparatus to rain or moisture.
TO PREVENT ELECTRICSHOCK DO NOTREM-
OVE TOP ORBOTTOM COVERS. NO USER SE-
RVICEABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED SERVICE PERSONNEL.
MAGNETIC FIELD
CAUTION! Do notlocate sensitive highgainequipment such as
preamplifiers or tapedecks dirctly above or below theunit. Be-
cause this amplifierhas a high power density,it has a strong
magnetic field whichcan induce hum into unshielded devices
that are locatednearby. Thefield is strongestjust aboveand b-
elow the unit.
If an equipmentrack is used, we recommend locatingthe amp-
lifier(s) in thebottom of the rack and thepreamplifier or other
sensitive equipment atthe top.
WATCHFOR THESE SYMBOLS:
The exclamation pointtriangle is used to alert the user toimpo-
rtant operating or maintenance instructions.
The lightning bolttriangle is used to alert the user tothe risk of
electric shock.
Important Safety Instructions
Professional Power Amplifier

Operation Manual page 3
CE Declaration of Conformity
Equipment Type: Audio Power Amplifiers
Model Names: ZENITH3000,ZENITH2400,ZENITH1800
This product hasbeen assessed against the following applicableStandards,
EMC (89/336/EEC Electromagneticcompatibility):
EN55013:2001 Sound andtelevision broadcast receivers and associated equipment- Radio disturbancecharacteristics - Limitsand methods of measurement
EN 55020:2002 Soundand television broadcast receivers and associatedequipment - Immunity characteristics - Limitsand methods ofmeasurement
EN 61000-3-2:2000
Part 3-2: Limits -Limits for harmonic currentemissions (equipment input current up to andincluding 16 Aper phase)
EN 61000-3-3:1995
Part 3-3: Limits -Limitation of voltagechanges, voltage fluctuationsand flicker in public low-voltage supply systems, for equipmentwith rated current 16 A per
phase and notsubject to conditional connection
LVD(73/23/EEC Low Voltage Directive)
EN60065:2002 Audio, Videoand similar electronic-safety requirements.
Professional Power 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 toUse This Manual ..........................................................5
2 Setup ......................................................................................6
2.1 Unpack Your Amplifier ............................................................6
2.2 Install Your Amplifier .............................................................6
2.3 Ensure ProperCooling ............................................................6
2.4 Choose InputWire and Connectors...........................................7
2.5 Choose OutputWire and Connectors .........................................7
2.6 Wire Your System ...................................................................8
2.6.1 Stereo Mode.......................................................................8
2.6.2 Parallel MonoMode.....................................................................9
2.6.3 Bridge-Mono Mode ...........................................................10
2.6.4 Low Cut Mode.....................................................................10
2.6.5 Low Pass Mode..................................................................10
2.6.6 limiter Mode..................................................................10
2.7 Connect to AC Mains .............................................................11
2.8 Startup Procedure ................................................................11
3 Operation ..............................................................................12
3.1 Precautions ........................................................................ 12
3.2 Front Panel Controls and Indicators ...................................... 13
3.3 Back Panel Controls and Connectors...................................... 13
4 Advanced Features and Options ...............................................14
4 Advanced Features and Options ...............................................15
Professional Power Amplifier

Operation Manual page 5
1 Welcome
The ZENITH Seriesof power amplifiers from
represents a newera in affordable,
quality power amplification.
Modern power amplifiers aresophisticated
pieces of engineeringcapable of producing
extremely high powerlevels. They must be
treated with respectand correctly installed
if they areto provide the many years ofrel-
iable service for whichthey were designed.
In addition, ZENITHSeries amplifiers include
a number offeatures which require some
explanation before theycan be used to their
maximum advantage.
Please take thetime to study this manual
so that youcan obtain the best possible se-
rvice from your amplifier.
1.1 Features
Accurate, uncoloured soundwith very low
distortion for the best inmusic and voice
reproduction.
Bridge-mono/stereo mode switchallows
your amplifiers/speakers tobe set up in
the configuration thatbest suits your
needs.
Advanced protection circuitry guardsa-
gainst shorted outputs, open circuits,
DC, mismatched loads,general overhe-
ating, high-frequency overloadsand I-
nternal faults.
Extremely versatile, handlinga wide ra-
nge of speakerimpedances and outputs.
Features Limit Switch
Low Cut by24dB/Octave Linkwitz-Riley
Filter
Low Pass by24dB/Octave Linkwitz-Riley
Filter
Switchable input sensitivity.
Proportional speed fan optimizescooli-
ng efficiency.
Can be mountedin standard ch
r or stacked on top of eachother.
19 in
ack,
Features both standard4-way binding
posts and genuineNeutrik Speakon output co-
nnectors. XLR inputs.
1.2 How to Use This Manual
This manual providesyou with the necessa-
ry information to safelyand correctly setup
and operate youramplifier. It does not cover
every aspect of installation,setup or oper-
ation that mightoccur under every condition.
We strongly recommendyou read allinstr-
uctions, warnings and cautionscontained
in this manual.
Zenith 3000
Professional Power Amplifier
4-ohm Stereo 960W
8-ohm Stereo 600W
8-ohm Bridge-Mono 1800W
*1KHz Power:refers tomaximum average power in
watts at 1KHzwith 0.5% THD.
ZENITH 1800
ZENITH 2400
4-ohm Stereo 1280W
8-ohm Stereo 800W
8-ohm Bridge-Mono 2400W
*1KHz Power:refers tomaximum average power in
watts at 1KHzwith 0.5% THD.
ZENITH 3000
4-ohm Stereo 1600W
8-ohm Stereo 1000W
8-ohm Bridge-Mono 3000W
*1KHz Power:refers tomaximum average power in
watts at 1KHzwith 0.5% THD.
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ZENITH 3000

page 6 Operation Manual
2 Setup
2.1 Unpack YourAmplifier
Please unpack andinspect your amplifier for any damage
that may haveoccurred during transit. If damage isfound,
notify the transportation companyimmediately. Savethe
shipping carton as evidenceof damage forthe shipper s
inspection.
We also recommendthat you saveall packing materials so
you will havethem if you ever need totransport the unit.
Never ship theunit without the factory packaging.
YOU WILL NEED(not supplied):
Output wiring cables
Input wiring cables
Rack for mountingamplifier (or astable surface for
stacking)
WARNING: Before youstart to set upyour
amplifier,make sure you read and observe
the Important Safety Instructionsfound at
the beginning ofthis manual.
2.2 Install Your Amplifier
CAUTION: Before youbegin, make sure your ampli-
fier is disconnectedfrom the power source, with
the power switchin the off position and all
level controls turnedcompletely down (counterc-
lockwise).
Use a standard equipment rack .
See Figure 2.1for amplifier dimensions.
19-inch (48.3 cm)
You mayalso stack ampswithout using a cabinet.
NOTE: When transporting, amplifiers should be supported
at both frontand back.
2.3 Ensure Proper Cooling
When using anequipment rack, mount units directly ontop
of each other. Close anyopen spaces inthe rack withblank pa-
nels. DO NOTblock front, rear or side airvents. The sidew-
alls of therack should be a minimum oftwo inches (5.1cm)
away from theamplifier sides, and the back ofthe rack sh-
ould be aminimum of four inches (10.2 cm)from the amp-
lifier back panel.
Figure 2.1
Dimensions
483.0 mm
462.0 mm
88.0 mm
Professional Power Amplifier
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ZENITH 3000

Operation Manual page 7
2 Setup
Figure 2.2
Balanced Input
Connector Wiring
Figure 2.3
Unbalanced Input
Connector Wiring
Figure 2.4
Left: Speakon Output Connector on Back Panel
Right: Speakon Cable Connector
OUTPUT ASSIGNMENT
PIN 1+ :
PIN 1- :
SIGNAL
GROUND
PIN 1+ :
PIN 1- :
SIGNAL
GROUND
OUTPUT A
OUTPUT B
2.4 Choose Input Wire and Connectors
ACM Audio recommends using pre-builtor professionally
wired, balanced line(two-conductor plus shield), 22-24
gauge cables andconnectors. Depending upon which am-
plifier input youchoose, you should use either 3-pinmale
XLR connectors, orjack connectors for the amplifier inputs.
Unbalanced line mayalso be used but may resultin noise
over long cableruns.
Note: Amplifier inputconnectors not used for audio signal
input may beused for daisy-chaining of the audiosignal
to other components.
Figure 2.2 showsconnector pin assignments for balanced
wiring, and Figure2.3 shows connector pin assignments
for unbalanced wiring.
NOTE: Custom wiringshould only be perf-
ormed by qualifiedpersonnel.
2.5 Choose Output Wire and Connectors
recommends using pre-builtor professionally
wired, high quality, two- orfour-conductor,heavy gauge
speaker wire andconnectors. Youmay use two4-pole Spe-
akon connectors (Figure2.4and Table 1) or banana plugs,
Toprevent the possibility of short-circuits, wrap or otherwise
insulate exposed loudspeakercable connectors.
CAUTION: Never useshielded cable for output wiring.
Professional Power Amplifier
BRIDGE Use both red Binding Posts

OFF 80Hz 125Hz
LOWPASS-A
LINK A
LINK B
INPUT A
INPUT B
PIN1:
PIN2:
PIN3:
SIGNAL GND
SIGNAL +
SIGNAL -
PIN1:
PIN2:
PIN3:
SIGNAL GND
SIGNAL +
SIGNAL -
OFF 35Hz 80Hz
HIGHPASS -A
STEREO PARALLEL BRIDGE
MODE
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
OUTPUT B
Push To Reset
26dB
32dB
0.775V
GAIN
~2202 40V 16A 50/60Hz
OUTPUT A
OUTPUT ASSIGNMENT
PIN 1+ :
PIN 1- :
SIGNAL
GROUND
+
+
35Hz
HIGHPASS -B LIMITER
OFFON
80Hz
LOWPASS -B GROUND
LIFT GROUND
OFF 80Hz
OFF 125Hz
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ZENITH 3000
8 stereo 21 000W
4 stereo 21 600W
page 8 Operation Manual
2 Setup
2.6 Wire YourSystem
2.6.1 Stereo Mode
SPEAKERS
Figure 2.5
System Wiring, Stereo Mode
Typicalinput and outputwiring is shown in Figure 2.5.
Professional Power Amplifier

OFF 80Hz 125Hz
LOWPASS-A
LINK A
LINK B
INPUT A
INPUT B
PIN1:
PIN2:
PIN3:
SIGNAL GND
SIGNAL +
SIGNAL -
PIN1:
PIN2:
PIN3:
SIGNAL GND
SIGNAL +
SIGNAL -
OFF 35Hz 80Hz
HIGHPASS -A
STEREO PARALLEL BRIDGE
MODE
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
OUTPUT B
Push To Reset
26dB
32dB
0.775V
GAIN
~2202 40V 16A 50/60Hz
OUTPUT A
OUTPUT ASSIGNMENT
PIN 1+ :
PIN 1- :
SIGNAL
GROUND
+
+
35Hz
HIGHPASS -B LIMITER
OFFON
80Hz
LOWPASS -B GROUND
LIFT GROUND
OFF 80Hz
OFF 125Hz
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ZENITH 3000
8 stereo 21 000W
4 stereo 21 600W
Operation Manual page 9
2 Setup
2.6.2 Parallel Mono Mode
SPEAKERS
Figure 2.6
System Wiring, Parallel Mode
Typicalinput and outputwiring is shown in Figure 2.6.
Professional Power Amplifier

OFF 80Hz 125Hz
LOWPASS-A
LINK A
LINK B
INPUT A
INPUT B
PIN1:
PIN2:
PIN3:
SIGNAL GND
SIGNAL +
SIGNAL -
PIN1:
PIN2:
PIN3:
SIGNAL GND
SIGNAL +
SIGNAL -
OFF 35Hz 80Hz
HIGHPASS -A
STEREO PARALLEL BRIDGE
MODE
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
OUTPUT B
Push To Reset
26dB
32dB
0.775V
GAIN
~2202 40V 16A 50/60Hz
OUTPUT A
OUTPUT ASSIGNMENT
PIN 1+ :
PIN 1- :
SIGNAL
GROUND
+
+
35Hz
HIGHPASS -B LIMITER
OFFON
80Hz
LOWPASS -B GROUND
LIFT GROUND
OFF 80Hz
OFF 125Hz
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ZENITH 3000
8 stereo 21 000W
4 stereo 21 600W
page 10 Operation Manual
2 Setup
2.6.3 Bridge-Mono Mode
2.6.4 Low Cut Filter
2.6.5 Low Pass Filter
2.6.6 Limiter
SPEAKERS
Figure 2.7
System Wiring, Bridge-MonoMode
Typicalinput and outputwiring is shown in Figure 2.7.
Low Cut Filtercuts off signalfrequency below
30/80Hz or 50Hz
Low PassFilter allows only frequencies below
80Hz or 125Hzwithout the use of external crossovers
when driving subwoofers.
Toavoid serious clipswhen long term operation at dynamic
signal input.
Professional Power Amplifier

Operation Manual page 11
2.7 Connect to AC Mains
2 Setup
Connect your amplifierto the AC mains power source(po-
wer outlet) withthe supplied AC power cable. First,co-
nnect the IECend of the cable to theIEC connector on
the amplifier; then,plug the other end of thecable to
the AC mains.
WARNING: The thirdprong of this connector(grou-
nd) is animportant safety feature. Donot attempt
to disable thisground connection by using an ad-
apter or othermethods.
The AC mainsvoltage and current must be sufficientto deliver
the power youexpect. Youmust operate your amplifier from
an AC mainspower source with not more thana 10% variation
above or a15%variation below the amplifier s specifiedline
voltage and withinthe specfied frequency requirements (indicated
on the amplifiers back panel label). If youare unsure ofthe output
voltage of yourAC mains, please consult an electrician.
2.8 Startup Procedure
Use the followingprocedure when first turning on your
amplifier:
1. Turndown the levelof your audiosource.
2. Turndown the levelcontrols of theamplifier.
3. Turnon the Power switch. The Powerindicator
should glow.
4. Turnup the levelof your audiosource to an optimum
level.
5. Turnup the Levelcontrols on the amplifier until the
desired loudness orpower level is achieved.
6. Turndown the levelof your audiosource to its normal
range.
If you everneed to make any wiring orinstallation changes,
do not forgetto disconnect the power cable.
Professional Power Amplifier

page 12 Operation Manual
3 Operation
3.1 Precautions
Your amplifieris protected frominternal and external
faults, but youshould still take the following precautions
for optimum performance andsafety:
1. Before use,your amplifier first must be configured for
proper operation, includinginput and output wiring
connection. Improper wiringcan result in serious operat-
ing difficulties.
2. Take care when making connections, selecting signal
sources and controllingthe output level.
3. Do notshort the ground leadof an output cable to the
input signal ground.This may form a ground loop and
cause oscillations.
4. WARNING: Never connect the output
to a power supply, battery or power
main. Electrical shock may result.
5. Tampering with the circuitry, ormaking unauthorized
circuit changes maybe hazardous and invalidates your
warranty.
6. Do notoperate the amplifier with the redClip LEDs
constantly flashing.
7. Do notoverdrive the mixer, which willcause a clipped
signal to besent to the amplifier. Such signals willbe
reproduced with extremeaccuracy, and loudspeaker
damage may result.
8. Do notoperate the amplifier with less thanthe rated
load impedance. Dueto the amplifier s output prot-
ection, such aconfiguration may result in premature
clipping and speakerdamage. Remember: is not
liable for damagethat results from overdriving other
system components.
Professional Power Amplifier

OFF 80Hz 125Hz
LOWPASS-A
LINK A
LINK B
INPUT A
INPUT B
PIN1:
PIN2:
PIN3:
SIGNAL GND
SIGNAL +
SIGNAL -
PIN1:
PIN2:
PIN3:
SIGNAL GND
SIGNAL +
SIGNAL -
OFF 35Hz 80Hz
HIGH PASS-A
STEREO PARALLEL BRIDGE
MODE
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
OUTPUT B
Push To Reset
26dB
32dB
0.775V
GAIN
~2202 40V 16A 50/60Hz
OUTPUT A
OUTPUT ASSIGNMENT
PIN 1+ :
PIN 1- :
SIGNAL
GROUND
+
+
35Hz
HIGH PASS-B LIMITER
OFFON
80Hz
LOWPASS -B GROUND
LIFT GROUND
OFF 80Hz
OFF 125Hz
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ZENITH 3000
8 s tereo 21 000W
4 s tereo 21 600W
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ZENITH 3000
Operation Manual page 13
3 Operation
2
Power Switch Ch-B Power
Indicator
3.2 Front Panel Controls and Indicators
3.3 Back Panel Controls and Connectors
1
Ch-A Level
Control
Ch-B Level
Control
4
Ch-A Signal,
Clip& PROT
Ch-A Power
Indicator
8
Inputs(XLR)
9Outputs(XLR)
14
21 Reset Switch
22 IEC Power Cord
Connector
Ch-A
Output
Ch-B
Output
Ground lift switch
Limiter switch
17 Input Sensitivity
Switch
Stereo/Parallel/
Bridge Switch
Low pass-B
switch
High pass-B
switch
High pass-A
switch
Low pass-A
switch
Bridge Output
Ch-B Signal,
Clip& PROT
Professional Power Amplifier

page 14 Operation Manual
4 Specifications
Professional Power Amplifier
Minimum Guaranteed Power ZENITH 1800 ZENITH 2400 ZENITH 3000
Performance
Damping Factor (8ohm): 20 Hzto 400 Hz
Low Cut:Linkwitz-Riley(24dB/Octave)
Low Pass:Linkwitz-Riley(24dB/Octave)
1 kHz with0.5% THD
Stereo, 4 ohms(per ch.)
Stereo, 8 ohms(per ch.)
Bridge mono, 8ohms
960W
600W
1800W
1280W
800W
2400W
1600W
1000W
3000W
Sensitivity (volts RMS)for full rated power at 8ohms
Frequency Response (at1 watt, 20Hz - 25 kHz)
Phase Response (at 1watt , 20Hzto 20 kHz)
Signal to NoiseRatio below rated power
A-weighted
TotalHarmonic Distortion (THD) at1 full bandwidthpower,
from 20 Hzto 20 kHz
Intermodulation Distortion (IMD) 60Hz and 7kHz at 4:1,
from full ratedoutput to -35 dB
Crosstalk (below ratedpower, 20 Hz to20 kHz)
Common Mode Rejection (CMR)(20Hz to 1kHz)
DC Output Offset(Shorted input)
Input Impedance (nominallybalanced, nominally unbalanced)
Voltage Gain(at maximum level setting) 39dB gain at0.775volt sensitivity 40.3dB gain at0.775volt sensitivity 41.2dB gain at0.775volt sensitivity
0.775V,32dB, 26dB 0.775V,32dB, 26dB 0.775V,32dB, 26dB
+0dB, -0.5dB+0dB, -0.5dB+0dB, -0.5dB
+10 ,-20+10 ,-20+10 ,-20
105dB
620
Off/35Hz/80Hz
Off/80Hz/120Hz Off/80Hz/125Hz Off/80Hz/125Hz
Off/35Hz/80Hz Off/35Hz/80Hz
680 760
106dB
-60dB
-65dB -65dB
-65dB
-60dB-60dB
107dB
0.1%0.1%0.1%
0.05% 0.05%
10mV10mV 10mV
0.05%
20 kilohms, 10kilohms 20 kilohms, 10kilohms20 kilohms, 10kilohms
ZENITH 1800 ZENITH 2400 ZENITH 3000

Operation Manual Page 15
4 Specifications
Professional Power Amplifier
Minimum Guaranteed Power
Construction
Performance
AC Line Voltage and FrequencyConfigurations Available ( 10%)
AC Line Current(both amplifiers draw no more than90 watts atidle)
Ventilation
Cooling
Dimensions
Weight
Net
Shipping
H W D: 89mm 483mm 462mm H W D: 89mm 483mm 462mm H W D: 89mm 483mm 462mm
Flow-through ventilation fromfront to back Flow-through ventilation from front to back Flow-through ventilation from front to back
Proportional speed fan Proportional speed fan Proportional speed fan
10A 12A 15A
16kg
19kg
18kg
21kg
23kg
26kg
~220-240 V and50/60 Hz ~220-240 V and50/60 Hz ~220-240 V and50/60 Hz
Load Impedance
Stereo
Bridge Mono
4-8 ohms
8 ohms
4-8 ohms
8 ohms
4-8 ohms
8 ohms
ZENITH 1800
ZENITH 1800
ZENITH 2400
ZENITH 2400
ZENITH 3000
ZENITH 3000

www.prolight.co.uk