Nova X Series User manual

USER'S MANUAL
PROFESSIONAL AUDIO

X Series
The information contained in this manual is subject to change without notice.
No part of this manual may be reproduced or transmitted in any form or by any means,
electronic or mechanical, including photocopying and recording of any kind.
USER'S MANUAL
PROFESSIONAL POWER AMPLIFIER
POWER
ON
OFF
High Precision Professional PowerAmplifier
Clip
Signal
Protect
Active
Clip
Signal
Protect
Active
Channel1
0dB0dB
00 00
Channel2
0dB0dB
00 00

NOVA Products
Service Information Form
Owner's Name:
Shipping address:
Street:
City:
Zip Code:
Country:
Phone Number: Fax Number:
Email:
MODEL: SERIAL:
NUMBER:
Place of Purchase:
Name of Dealer:
Full Address:
DATE OF PURCHASE:
Nature of the problem
(Be sure to describe the conditions that existed when the problem occurred and what
attempts were made to correct it.)
Other equipment in your system
If warranty has expired, payment method: Cash Check Visa Master
card number: Signature:
Enclose this form with the defective unit. Do not mail separately.

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Page 12
LIMITED WARRANTY
THE WARRANTY
For a period of One (1) year from the date of delivery to the original purchaser (as shown on the original invoice or sales
receipt), NOVA International Group Limited warrants to the ORIGINAL OWNER of each product (provided it was
purchased at an Authorized NOVADealer) that it is free of defects in materials and workmanship and that each product
will meet or exceed all factory published specifications for each respective model. NOVA agrees to repair or replace (at its
discretion) all defective parts at no charge for labor or materials; subject to following provisions:
WARRANTY VIOLATIONS
NOVA shall take no responsibility for repair or replacement as specified under this warranty, if the damaged product has
been subject to misuse, accident, neglect or failure to comply with normal maintenance procedures; or if the serial
number has been defaced, altered or removed. Nor will NOVA accept responsibility for, or resulting from, improper
alterations or unauthorized parts or repairs. This warranty does not cover any damage to speakers or any other
consequential damage resulting from breach of any written or implied warranty.
NOVA WARRANTY PROVISIONS
NOVA will remedy any defect, regardless of the reason for failure (except as excluded ) by repair, or replacement. NOVA
will remedy the defect and ship the product within a reasonable time after receipt of the defective product at an NOVA
Authorized Service Center.
TO OBTAIN WARRANTYSERVICE
In the event that an NOVA product requires service, the Owner must contact NOVA or an Authorized NOVA Service
Center to receive an R.A.N. ( Return Authorization Number) and instructions on how to return the product to the NOVA
Authorized Service Center, or to the factory. NOVA (or its Authorized Service Center) will initiate corrective repairs upon
receipt of the returned product. Please save original carton and all the packing materials in case shipping is required. All
products being returned to the factory or service center for repairs must be shipped pre-paid.
If the repairs made by NOVA or the NOVA Authorized Service Center are not satisfactory, Owner is instructed to give
written notice to NOVA. If the defect or malfunction remains after a reasonable amount of attempts by NOVA to remedy
the defect or malfunction, the Owner shall then have the option to elect either a refund or replacement of said NOVA
product free of charge. The refund shall be an amount equal to but not greater than the actual purchase price, not
including any taxes, interest, insurance, closing costs and other finance charges (minus reasonable depreciation on the
product). If a refund is necessary, the Owner must make the defective or malfunctioning product available to NOVAfree
and clear of all liens or other restrictions.
MODIFICTTIONS OF EQUIPMENT
NOVA reserves the right to modify or change equipment (in whole or part) at any time prior to delivery thereof, in order to
include therein electrical or mechanical improvements deemed appropriate by NOVA; but without incurring any liability to
modify or change any equipment previously delivered, or to supply new equipment in accordance with any earlier
specifications.
DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGES
YOU,THE OWNER, ARE NOT ENTITLED TO RECOVER FROM NOVA ANY INCIDENTAL DAMAGES RESULTING
FROM ANY DEFECT IN THE NOVA PRODUCT. THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCT OR
PRODUCTS RESULTING FROM SUCH ADEFECT.
WARRANTY ALTERATIONS
No person has the authority to enlarge, amend, or modify this Warranty. This Warranty is not extended by the length of
time which the Owner is deprived of the use of product. Repairs and replacement parts provided pursuant to the
Warranty shall carry only the non-expired portion of the Warranty.
THIS STATEMENT OF WARRANTY SUPERSEDES ALL OTHERS CONTAINED IN THIS MANUAL
NOTES:
WEEE Mark
If you wantto dispose ofthis product, donot mix withgeneral
household waste. Thereare separate collection systems for used
electronic products inaccordance with legislationunder the WEEE
Directive (Directive 2002/96/EC)and is effectiveonly within the
European Union.
Series Series

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The information furnished in this manual does not include all of the details of design and engineering of this
particular product; not does it cover every possible application or situation concerning its usage, which may
occur during the installation, operation or maintenance of said NOVA product.
Service
This unit has very sophisticated circuitry and should only be serviced by a fully trained
technician.
This is why each unit bears the following label:
To prevent electric shock, do not remove covers. No user serviceable parts inside. Refer
servicing to a qualified technician.
Worldwide Service
Service may be obtained from your local authorized service center. To obtain service, simply
present your sales receipt as proof of purchase along with the defective unit to an authorized
service center. They will handle the necessary paperwork and repair. Remember to transport
your unit in the original factory packaging.
1. When sending a NOVAproduct to the authorized service center for service, be sure to fill out
the service information form that is enclosed at the end of this manual and include it inside
your unit's shipping pack. Do not send the service information form separately.
2. To ensure the safe transportation of your unit to the authorized service center, ship it in an
original factory-packing container.
3. Do not ship the unit in any kind of rack. Ignoring this warning may result in extensive damage
to the unit and the equipment rack. Accessories are not needed. Do not send the instruction
manual, cables and any other hardware.
IMPORTANT
THE PRODUCT REQUIRES
CLASS 2 OUTPUT WIRING.
TO PREVENT ELECTRIC SHOCK, DO NOT
REMOVE TOP OR BOTTOM COVERS. NO
USER SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE
PERSONNEL. DISCONNECT POWER CORD
BEFORE REMOVING REAR PANEL COVER
TO ACCESS GAIN SWITCH.
Shock Hazard - Do Not Enter
Choc Hasard - N*entrent
Schocke Hazard - Test Nicht
Betrete
Urto Hazard - Do Non Entrano
WARNING
TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE!
Magnetic Field
CAUTION: Do not locate sensitive high-gain equipment such as preamplifiers or tape
decks directly above or below this unit. Because this amplifier has a high power density, it
has a strong magnetic field which can induce hum into unshielded devices that are located
nearby. This field is strongest just above and below the unit. If an equipment rack is used,
we recommend locating the amplifier(s) at the bottom of the rack and the preamplifier or
other sensitive equipment at the top.
The lightning bolt triangle is
used alert the user to the
risk of electric shock.
The exclamation point triangle is used
to alert the user to important operating
and/or maintenance instructions.
Printed on
recycled paper.
CAUTION
Series Series

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Introduction
Congratulations on your purchase of a X Series audio power amplifier. We would like to
thank you foryour confidence inus and ourproducts.
All the components were specially selected. Although the amplifier was designed to allow
straightforward and uninterrupted operation, improper handling or incorrect installation
could damage thepower amplifier.
Your amplifier represents the latest technology in power amplifier design. Please read this
manual carefully asit contains informationvital to thesafe operation ofyour amplifier.
Unpacking
Check the cartonbox and itscontents immediately tosee if thereis any sign of damage.
Upon unpacking inspectthe amplifier,if you detect any damage informthe forwarding agent
without delay andask for thedamage to bedocumented.
Claims can onlybe made againstthe forwarder agentby the consignee.
Be sure tosave the cartonand all packagingmaterials for thecarrier's inspection.
It's a good idea to save the carton and packing material even if the amplifier has arrived in
good condition. Should you ever need to ship the unit back to service office, or one of its
Service Center . Using only the original factory packaging will be the best way to save the
unit from carriernegligence.
Installation/Mounting
The X6000 is 3- rack space units that can mount in a standard 19" rack. Four front panel
mounting holes areprovided.
Rear mounting earsgive additional supportespecially important inmobile sound systems.
The unit shouldnot to beinstalled in a location with:
Toohigh ambient temperature,dust build-up orexcessive humidity;
Fog machines output'soriented to thearea of theamplifier;
Exhaust air ventilatorsand similar unitsnear the areaof the amplifier;
With permanent vibrations;
With excessive inductionor magnetic fieldsdue to transformersand transmitters;
The ShowAlways Goes On
X6000 is completely protected against every possible error in operation and is designed to
work under every condition. It gives you maximum power with maximum safety and
increases long-term reliability. Anticipating potential problems at the design stage means
your show alwaysgoes on!
SPECIFICATIONS
MODEL
Max output power
RMS at 1kHz and 1% THD
8 per channel (Watt)
4 per channel (Watt)
2 per channel (Watt)
8 bridged (Watt)
4 bridged (Watt)
THD at 1kHz and 1 dB below clipping
Slew rate
Dampping Factor
Sensitivity
Input connectors
Link connectors
Mode Switch
Output Connector
Operation voltage
Soft Start
Dimensions ( Wx D xH )
Unit ( mm)
Packing ( mm)
Weight ( kg)
Net Weight
Gross Weight
X6000
1750
3000
4500
6000
9000
0.10%
45V/ s
600
26dB/32dB/1.4V
XLR Female
XLR Male/Phonejack
Stereo/Bridge/Parallel
Speakon
230V
Yes
483 x 446x 133.4
560 x 560x 195
35
38
(Note-1.Max output @4ohmsbridge with burst signal 100ms)
Series Series

POWER
ON
OFF
High Precision Professional PowerAmplifier
Clip
Signal
Protect
Active
Clip
Signal
Protect
Active
Channel1
0dB0dB
00 00
Channel2
0dB0dB
00 00
2
12
3
4
56
7
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Front Panel
Rear Panel
1. Rack mountingears
Two frontpanel mounting holesare provided oneach mounting ear.
2. Input attenuator
Two front panel precision 41 steps input attenuator adjust level for their respective amplifier
channels. Minimum attenuation(-0dB) equals maximum output. In the bridge mode bothlevel
attenuator must be at the same position. We recommend that you set CH1 to the -0dB (full)
position.
3. Signal barLED
Each channel hasa signal LED, as the inputsignal strength increase, the green SIGNALindi-
cators light respectively.
4. Clip/Limiter LED
Each channel has a LED that light at the real clipping point (more than 0.5% T.H.D.) and also
indicates the inputsigned is compressedby amplifiers.
Series SeriesSeries Series
13 121110
13 15 81110
14 99
99
BRIDGE
PARALLEL
STEREO
Bridge Mono Mode
CAUTION: TURN OFF AMPLIFIER
BEFORE CHANGING THIS SWITCH
LOUDSPEAKERS
MIXER
Only use the CH 1 Input
CH 2 is not used in the mode
CHANNEL 1
CHANNEL 2
LOUDSPEAKERS
CH 1
CH 2
MIXER
CAUTION: TURN OFF AMPLIFIER
BEFORE CHANGING THIS SWITCH
Stereo Mode
BRIDGE
PARALLEL
STEREO
LOUDSPEAKERS
MIXER
Only use the CH 1 Input
CH 2 is not used in the mode
CAUTION: TURN OFF AMPLIFIER
BEFORE CHANGING THIS SWITCH
Parallel Mono Mode
CHANNEL 1
CHANNEL 2 BRIDGE
PARALLEL
STEREO
Figure 1
Parallel Inputs (Link)

MLS SWITCH SETTING
0 dB
1300 W
2300 W
2900 W [2]
3200 W [1]
LOAD
8 ohms
4 ohms
2 ohms
CONFIGURATION
Stereo (2 channel)
Stereo (2 channel)
Stereo (2 channel)
2600 W
4600 W
5800 W [1]
16 ohms
8 ohms
4 ohms
Bridge mono
Bridge mono
Bridge mono
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5. Protect LED
Each channel has a Protect LED that will light when the load connected is lower than 1 Ohm
or amplifier broken.
6. Power LED
The green active LED illuminates to indicate that the amplifier is turned on, and works
correctly.
7. ACpower switch
Use this toswitch on theamplifier.A soft-start system limits thestart-up surges.
8. Fan exhaustports
Heated air exitsthe amplifier through the exhaust ports, located on therear of the amplifier
chassis. Be surenot to blockthis ports, especially when rack mounting the amplifier.
9. Input connectors
XLR female is provided on each channel for balanced or unbalanced input. Unfortunate
wiring, in the proximity of dimmers or other generalised phase controls, motors, trans-
former, etc. can cause interference into your system. You will hear loud humming or a
bumping noise in the loudspeakers. Balanced wiring suppresses these noises quite
significantly.
10. Impedance matching(OVPswitch)
The VOP switchesare located on the rear panel.The VOP (Minimum Load Select)switches
Offer impedance matching,so you can drive the X6000 into 2 ohms without increased heat
loss.
As stated earlier, the X6000 can produce 2300 watts into both, 2 and 4 ohms. Use lower
OVP settings when connecting to lower impedance loads as shown in table 1. As can be
seen in table1, the X6000can produce outputpower in excess of 2000 watts.
If the amplifier is going to operate above its maximum operating
0
temperature (90 C).The indicator first comes on as a warning to either turn down the input
level or check the cooling arrangements. Beyond the maximum temperature the amplifier
will mute the input signal. Once the cooling fans have brought the output heat sinks back to
normal operating temperaturethe input signalis un-muted.
Series Series
Stereo Mode (standard)
In stereo mode,the channels operateindependently, withtheir input attenuatorscontrolling
the respective channel's level. Recommended minimumnominal load impedance for stereo
operation is 4or 2 Ohmsper channel (asindicated on the specifications). Loudspeakers are
connected to thespeakon outputs CH1 or CH2. For referencesee
Bridged Mono Mode
In Bridged Monomode, both amplifierchannels work withthe same input signal, but with
inverse phases. Theresult is a doubling of theoutput voltage andthus double thepower on
the double impedance.If the amplifieris to beoperated in Bridged Mono mode, ONLY one
input may beused CH1. Werecommend that youset them tothe -0dB (full)position.
Loudspeakers are connectedto the speakonoutput CH 1.For reference seeFigure 1.
Parallel Inputs (Link)
In parallel mode both channels' inputs are linked and receive the same signal. The parallel
mode is activeif the Link switches are in position "PARA".Both level attenuators are active,
allowing you toset different levelsfor each channel.Note that only the inputs areconnected
in parallel. Thisis NOT aparallel mono mode. Never connect either positive output terminal
to ground or in parallel. You may use the remaining input connectors to carry the signal to
other amps. NOTE:Always turnoff the Linkswitch when usingthe amplifier forBi-amping.
Figure 1

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12. Input Sensitivity/Gain
The standard settings are:1.4V,32dB,26dB,selection is independent for each channel. Use
this function to match the amplifier's sensitivity/gain with the other connected equipment.
As option, is possible adjust the unit for any sensitivity/gain.Note that every increase of the
gain will decreasethe S/N ratio.
13. Mode operationswitches
Setup these switchesfor the desiredoperation mode. Forreference see
14. Speakon outputconnectors
The unit hasfour Speakon connectorsas outputs: CH 1 and CH 2. Every onepermit the con-
nection of both channels for stereo operation or parallel mode. For bridge operation the
CH1 connector shouldbe used. Forreference see
15. A.C.Power cable
The unit have one A.C. power cable. Before connection, be sure that the cable is not frayed
or broken. The connection must be made only in a plug with the electrical ground wire sys-
tem.
16. S.N. label
Every unit hasa label indicating:the model, andthe bar codeserial number.
Figure 1.
Figure 1.
Operation
Grounding
There is noground lift switchor terminal onthis amplifier. The signal groundis always
floating via aresistor to chassis,and the groundingsystem is automatic. If a potential above
0.6V is presentsin between signalground and chassisground, a short circuit is introduced
between the two,thereby enabling electricalprotection. If aunit in the system is faulty, its
mains fuse willblow due tothis automatic groundsystem. If however you wish to tie the sig-
nal ground tochassis, connect theXLR-connector`s shell lugto pin 1. In the interest of
safety never disconnectthe earth pinon theAC power cord.
For all unitsthat are FCCapproved (radio interference),there is an AC mains filter. Thisfil-
ter needs thechassis ground forreference, otherwise acurrent loop is formed via the signal
ground. Use thebalanced input toavoid hum andinterference.
Connecting Power andCircuit size requirements
Amplifier's power requirementare rated atidle, at 1/8and 1/3 power ("severe" music condi-
tion).The maximum powercurrent draw ratingis limited onlyby the internal fuses. Consult
the specification atthe end ofthis manual forthe power each amplifier will demand. Mains
voltage must alsobe correct andthe same asthat printed on the rear of the amplifier.
Damage caused byconnecting the amplifierto improperAC voltage is not covered by any
warranty.
Note: always switchoff and disconnectthe amplifier frommains voltage beforemaking
audio connections, andas an extraprecaution, have theattenuators turned downduring
power-up.
Cooling Requirements
Amplifier use aforced air coolingsystem to maintaina low, even operating temperature.
Drawn by ainfinitely variable speedfans mounted insidethe unit, air enters through the
front
grills with dustfilter, andcourses through thecooling fins of the heatsinks, which dissipates
power transistor heat,before exiting throughthe rear panelports. Make surethat there is
enough space aroundthe front ofthe amplifier toallow air toenter, and around the unitsto
allow the heatedair to exit.If the ampis rack-mounted, donot use doors or covers onthe
front and rearof the rack;the air mustflow through theamplifier without resistance.
Note: whatever typeof rack youare using, makesure that theheated air can escape freely,
and that thereis not resistanceto the intakeof cool airthrough the front grill.
Configuration
Use the configurationswitch configurate theamplifier to meetyour requirements. Thesetup
must be donewith the unitswitched off. Withthe switches andjumpers is possibleto
configurate the amplifierfor the followingfunctions:
Series Series