K-array Thunder-KMT218P User manual

KMT12P Ver. 1.2
KMT218P
USER GUIDE
English

KMT12P Ver. 1.2
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TABLE OF CONTENTS
SYMBOLS ............................................................................................................ 3
1. INTRODUCTION .............................................................................................. 4
2. KEY FEATURES............................................................................................... 4
3. APPLICATIONS................................................................................................ 4
4. SAFETY INFORMATION ................................................................................. 5
5. UNPACKING ................................................................................................... 6
6. PHYSICAL ........................................................................................................ 6
7. WIRING ............................................................................................................ 7
8. HANGING POINTS.......................................................................................... 8
9. SERVICE .......................................................................................................... 9
10. TECHNICAL SPECIFICATIONS ................................................................... 10
11. CERTIFICATION............................................................................................. 11

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This symbol alerts the user to the presence of recommendations about
product’s use and maintenance.
This symbol alerts the user to the presence of recommendations about the
product’s use and maintenance.
K-array declares that this device is in compliance with applicable CE
standards and regulations. Before putting the device into operation, please
observe the respective country-specific regulations!
WEEE
Please dispose of this product at the end of its operational lifetime by bringing
it to your local collection point or recycling center for such equipment.
This device complies with Restriction of Hazardous Substances Directive.
SYMBOLS
Warning! Dangerous voltages: RISK of electric shock.
Terminals marked with this symbol are HAZARDOUS LIVE and the external
wiring connected to these terminals requires installation by a qualified
professional or the use of ready-made leads or cords.

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1. INTRODUCTION
2. KEY FEATURES
3. APPLICATIONS
The K-array KMT218P is a high performance passive subwoofer featuring 2x18” neodymium magnet
woofers with suspension engineered for maximum linear excursion.
The KMT series’ unique four-corner port configuration provides symmetrical back loading to the
speakers, for extended bass response with very low distortion. The port configuration also provides
incredible structural strength to the cabinet, despite its light weight. Pocket handles and an M20 thread
mount position for attaching mid-high speakers makes it convenient to use and ideal for small throw
applications in theaters, concert halls and Audio/Video installations.
All KMT components are designed by K-array and custom-made under K-array’s quality control system.
• Unique performance to size ratio
• High power 133 db continuos 139db peak
• Direct radiating, long excursion 2 x 18” cone drivers
• Fitted with integral handles
• Portable and installed audio-visual systems
• Theatrical sound reinforcement
• Clubs, Houses of worship
• Cinema and special effects

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4. SAFETY INFORMATION
Read these instructions - Keep these instructions - Heed all warnings
Warning. Failure to follow these safety instructions could result in injury
or damage to the device or other property.
IMPORTANT SAFETY INSTRUCTIONS
• Read these instructions.
• Keep this instructions.
• Heed all warnings.
• Follow all instructions and keep all warnings.
• Only use attachments/accessories specified by the manufacturer.
• Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with
the apparatus.
• When a cart is used, use caution when moving the cart/apparatus combination to avoid
injury from tip-over.
• Avoiding hearing damage. Professional loudspeakers are capable of producing extremely high sound
levels and should be used carefully. Never stand close to loudspeakers driven at high volume. Set
the volume to a safe level. You can adapt over time to a higher volume of sound that may sound
normal but can be damaging to your hearing. Hearing loss get worse every time you’re exposed to a
sound level of 90 dB or over for an extended period of time. If you experience ringing in your ears
or muffled speech, stop listening and have your hearing checked. The louder the volume, the less
time is required before your hearing could be affected.
• Choking Hazards. This device contains small parts, which may present a choking hazard to small
children. Keep the device and its accessories away from small children.
• Do not make repairs yourself. Never attempt to disassemble, repair or modify the system yourself.
Disassembling the unit may cause damage that is not covered under the warranty. The device contains
no user-serviceable parts. Repairs should only be performed by factory trained service personnel.
• Sound distortion. Do not operate speakers for an extended period of time with sound distortion. This
is an indication of malfunction, which in turn can generate heat and result in a fire.
• Carrying, handling and installing the device. The device contains sensitive components. Do not drop,
disassemble, open, crush, bend, deform, puncture, shred, incinerate, paint, or insert foreign objects
into it. If your device has been dropped or damaged unplug the power cable immediately.
• Set up. Set up your device on a stable retaining horizontal surface. If combined or mechanically
connected with other products, always verify the stability of the resulted system. Install the unit
only in a location that can structurally support the weight of the unit, far away from people who can
interfere with the stability of the system. Assure that the wind does not interfere with the system’s
stability, taking extra securities like chains, weights, ropes or any other certified anchoring systems.
Doing otherwise may result in the unit falling down, causing personal injury or property damage
or even death. The system should only be suspended by qualified personnel following safe rigging
practices. Secure fixings to the building structure are vital. To clarify any doubt you may have, seek
help from architects, structural engineers or other specialists.

18,9in
480mm
37,4in
949mm
36,8in
934mm
18,3in
465mm
23,6in
600mm
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5. UNPACKING
Each K-array speaker is built to the highest standard and thoroughly inspected before leaving the
factory. Upon arrival, carefully inspect the shipping carton, then examine and test your new amplifier.
If you find any damage, immediately notify the shipping company. Only the consignee may institute a
claim procedure regarding the system’s electronic equipment.
Weight
49.0 kg (108.03 lbs)
6. PHYSICAL

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7. WIRING
KMT218P internal wiring is designed to pick up audio power signal from pins 1+ / 1- of a NL4 connector.
2+ and 2- pins, just like 1+ and 1-, are directly wired from one socket to the other, so the signal can pass
through multiple speaker modules without additional external cabling.
Rear panel

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Fasten four standard M8 eyebolts to hang a unit from the dedicated threaded points on the chassis (see
the picture). Then use appropriate steel cables sturdy enough to resist against the subwoofer’s weight.
8. HANGING POINTS
• To prevent injury, this apparatus must be securely attached to the
floor/wall in accordance with the installation instructions. Tipping,
shaking, or rocking the machine may cause injury or even death.
• K-array is not responsible for any rigging equipment and accessories
that are not manufactured by K-array. It is the user’s responsibility to
ensure that the Working Load Limit (WLL) of all the additional rigging
hardware accessories is greater than the total weight of the system
in use.

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9. SERVICE
To obtain service:
1) Contact the official K-array distributor in your country. Your local distributor will direct you to the
appropriate service center.
2) If you are calling for service, please have the serial number(s) of the unit(s) available for reference.
Ask for Customer Service, and be prepared to describe the problem clearly and completely.
3) If the problem cannot be resolved over the phone, you may be required to send the unit in for
service. In this instance, you will be provided with an RA (Return Authorization) number which
should be included on all shipping documents and correspondence regarding the repair. Shipping
charges are the responsibility of the purchaser.
Any attempt to modify or replace components of the device will invalidate your warranty. Service must
be performed by an authorized K-array service center.
Cleaning:
Use only a soft, dry cloth to clean the housing. Do not use any solvents, chemicals, or cleaning
solutions containing alcohol, ammonia, or abrasives. Do not use any sprays near the product or
allow liquids to spill into any openings.

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10. TECHNICAL SPECIFICATIONS
Notes for data
1. Maximum RMS applicable power for a musical signal. The reference signal is the one proposed by EIAJ standard
2. With dedicated preset;
3. Measured @4 mt then scaled @1 mt;
4. Measured with musical signal
New materials and design are introduced into existing products without previous notice. Present systems may differ in some respects from those presented in this catalogue.
The contents of this manual are furnished for informational purposes only. K-array s.u.r.l. assumes no responsibility for any errors or inaccuracies that may
appear in this manual. K-array s.u.r.l. reserves the right to make modifications without prior notice.
ACOUSTICS
Power handling 1600 W
Max Power 2800 W (1)
Impedance 4 Ω
Frequency range (-10 dB) 30 Hz – 150 Hz
SPL 1W/1mt 101 dB
Maximum SPL 133 dB (cont.) – 139 dB (peak)
COVERAGE
Horizontal omni
Vertical omni
CROSSOVER
Type External crossover required
Frequency Low pass @ 150 Hz
(maximum - preset dependent)
TRANSDUCERS
Type 2 X 18” Neodymium magnet woofer
with 3” voice coil
POWER AUDIO IN/OUT
Connectors 2 x 4 pin Speakon
Wiring 1+ 1 -(signal IN & Link); 2+ 2- (through)
RECOMMENEND AMPLIFIERS
Type KA84, KMT218
PHYSICAL
Dimensions 94.9 cm x 48.0 cm x 60.0 cm
(37.4“ x 18.9” x 23.6“)
Weight 49.0 kg (108.03 lbs)

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11. CERTIFICATION
K-array s.r.l. a socio unico società soggetta alla attività di direzione e coordinamento di HP Sound Equipment spa
P. IVA / VAT / CF 06206990480 -R.E.A. 609589 Cap. soc. i.v. € 100.000,00
Sede legale: via Paolina Romagnoli 17 50038 Scarperia e San Piero -Firenze -ITALYtel [phone] fax [phone]
[email protected] www.k-array.com
DECLARATION OF CONFORMITY
Manufacturer/Importer: K-array s.u.r.l.
Brand:K-ARRAY
Address: via Paolina Romagnoli 17 50038 Scarperia e S. Piero Firenze ITALY
Date of Issue: 06 / 06 /2016
Model Code: KMT218P, KMT218PX
Declaration: Complies with safety essential requirements of Council Directive
2004/108/EC on the approximation of the Laws of the Member States relating to
electromagnetic compatibility.
2006/95/EC on the harmonisation of the laws of member state relating equipment
designed for the use within certain voltage limits
This declaration applies to all specimens manufactured in accordance with the attached
manufacturing drawings which form part of this declaration. Assessment of compliance
of the product with the requirements relating to electromagnetic compatibility and low
voltage directive was based on the following standards:
EMC:
EN 55103-1:2009
EN 55103-2:2009
EN 61000-3-2:2006+A1+A2
EN 61000-3-3:2008
Safety:
EN 60065:2002+A1+A11+A2+A12
Marking:
Applying Year: 2016
Applied by: K-array s.u.r.l.
Via Paolina Romagnoli 17
50038Scarperia e S. Piero
Firenze Italy
Tel. [phone]
Fax [phone]
Signed by: Franco Spataro
Technical Manager