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 symbol alerts the user to the presence of recommendations about the
product’s use and maintenance.
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.
This symbol alerts the user to the presence of recommendations about
product’s use and maintenance.
This device complies with Restriction of Hazardous Substances Directive.
3
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KU26Ver. 1.3
1. INTRODUCTION
K-array’s compact subwoofers have just been scaled down even more. Components from the K-array
subwoofer line have been modified to create a smaller, yet extremely powerful, bass system comprised
of one 6” Neodymium transducer and one 6” passive radiator, engineered for maximum linear excursion
and minimum residual noise.
With a frequency range of 45Hz to 150Hz, the KU26 is a companion to the K-array Lyzard, Vyper, and
Tornado speakers. The combination provides full range frequency response with prodigious output and a
virtually invisible profile. The KU26 boasts extended frequency response and is electronically protected.
Its neodymium transducer has a double voice coil (16+16 Ω) for selectable impedance settings (8/32 Ω)
allowing you to combine up to eight KU26 units powered by just one amplifier channel. Designed as a
passive speaker, the KF26 can be transformed into a self-powered speaker just by inserting the specific
amplifier accessory, KA1-UB.
KU26 is made entirely of steel, making it extremely resistant, even when deployed outside in tough
weather conditions. This is ideal for water-front environments where ordinary bass speakers would
corrode. It cannot be penetrated by foreign objects like dust, sand or water, which over time can damage
an ordinary audio element. The subwoofer is available in black or white to adapt to the aesthetics for
almost all applications and has dedicated accessories available and includes integrated flying points for
various setups.
The KU26 has been designed to extend the low range in small to medium size rooms. Applications vary
from hotels and houses of worship to pubs and restaurants as well as stores and conferences.
All KU26 components are designed by the K-array R&D department and custom made under the K-array
quality control system.
2. KEY FEATURES3. APPLICATIONS
• Unique performance-to-size ratio
• High power 121 dB SPL (peak)
• 6” long-excursion woofer
• 6” passive radiator
• Extended frequency response
• Double voice coil to allow for selectable
impedance (8Ω / 32Ω)
• Weather proof, suitable for outdoor
installations
• Dedicated accessories for flush mounting
• Self-powered capabilities with dedicated
accessory
• Available in black and white colors
• To extend the low range of Lyzard, Tornado
and Vyper mid-high speakers
• Restaurants, Lounges, Stores, Pubs
• Houses of worship, Conference halls
• Portable and installed AV systems
4. PACKAgE CONTENTS
• 1 x Subwoofer
• 1 x 4-pin Phoenix connector
• 1 x serial cable
• 2 x wall brackets
4
Page 5
KU26Ver. 1.3
5. 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.
5
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KU26Ver. 1.3
6. 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.
7. Ph Y S I C A L
7,1in
7,3in
180mm
185,1mm
13,8in
350mm
4,7in
118,5mm
4,8
121,8
Weight
5.9 kg (13.0 lbs)
6
Page 7
KU26Ver. 1.3
7.1 MOUNTINg SCREw hOLES FOR ACCESSORIES
Mounting screw holes for wall brackets
Mounting screw holes for K-JOINT2
7
Page 8
KU26Ver. 1.3
8. wIRINg
The KU26 is comprised of a 6” neodymium transducer, combined with a 6” passive transducer. The
neodymium transducer features a double voice-coil (16Ω + 16Ω).
The two voice coils can be wired in parallel (resulting in a 8Ω total impedance) or in serial (resulting in a
32Ω total impedance). To do this, we provide a 4-pin female Phoenix connector where users can make
the wiring; then the female Phoenix connector is plugged into the male Phoenix connector situated at
the back of the speaker.
We provide also a “serial cable” that can be used to connect the two central pins of the phoenix
connector in the 32Ω configuration.
8Ω32Ω
NOTE
The K-array KA84 amplifier can drive up to eight KU26 at 32Ω per channel. The K-array KA24 and KA14 amplifiers can drive up
to two KU26 at 8Ω per channel.
8
Page 9
KU26Ver. 1.3
8.1 K-2SPK ACCESSORY
This accessory is used to connect a Speakon cable to a KU26. It features two Speakon connectors wired
in parallel giving you the possibility to wire two or more KU26s in parallel using only Speakon cables.
The two wires situated at the back of the K-2SPK carry the signal from the 1+ contact (red wire) and
1- contact (black wire) of the Speakon connector. Wire them to the phoenix connector as shown in the
previous section (by default, they are wired in serial configuration). Use the four screws and the four
hexagonal spacers included to mount the K-2SPK on the KU26.
AMPLIFIER
OUTPUT
KU26s wired in parallel via Speakon cables
9
Page 10
KU26Ver. 1.3
9. KA1-UB AMPLIFIER
Born as a passive speaker, the KU26 can be turned into a self-powered speaker by inserting the KA1-UB
amplifier module in the back.
The KA1-UB works at 48v. We recommend to use K-array 48v power supplies: K-AL240-48 and
K-AL480-48.
The KA1-UB features a 4-pins phoenix connector carrying both power and balanced audio signal. Follow
the wiring diagram below to connect it to the power supply and to the audio source.
10
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KU26Ver. 1.3
10. SET UP
10.1 RUBBER FEET MOUNTINg
KU26 can be positioned on a flat surface both in horizontal and in vertical position thanks to the four
rubber feet included.
KU26 in horizontal position on a flat surface
KU26 in vertical position on a flat surface
11
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KU26Ver. 1.3
10.2 hANgINg SETUP
The KU26 can be mounted on the wall using the two included wall brackets.
10.3 TILTINg ThE SYSTEM
When a tilting angle is necessary, the KU26 can be mounted on the wall with the K-WALL2L or
K-WALL2 accessories (not included).
12
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KU26Ver. 1.3
10.4 FLUShED wALL MOUNT
The KU26 can be easily flush mounted in wall thanks to the K-WF26 accessory (not included).
The frame is affixed magnetically
13
Page 14
KU26Ver. 1.3
11. 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.
14
Page 15
KU26Ver. 1.3
12. TEChNICAL SPECIFICATIONS
ACOUSTICS
Power handling2 x 80 W
Impedance8 / 32 Ω selectable (2 x 16 Ω)
Frequency range (-10 dB)45 Hz – 150 Hz
SPL 1W/1mt98 dB
(2)
Maximum SPL115 dB (cont.) – 121 dB (peak)
COVERAGE
Horizontalomni
Verticalomni
CROSSOVER
TypeExternal crossover required
FrequencyLow pass @ 150 Hz
TRANSDUCERS
Type1 x 6” Neodymium magnet with 1.5” voice coil
Type1 x 6” passive transducer
POWER AUDIO IN/OUT
Connectors1 x 4-pin phoenix connector
WiringSerial or parallel
RECOMMENDED AMPLIFIERS
TypeKA14, KA24
CERTIFICATION
IP54
(More complete water protection with K-KUIP accessory)
PHYSICAL
(1)
(3)
Dimensions35.0 cm x 18.0 cm x 11.9 cm (13.8“ x 7.1” x 4.7“)
Weight5.9 kg (13.0 lbs)
Notes fo r data
1. With dedic ated prese t;
2. Measure d @4 mt then scaled @1 mt;
3. Measured with musical signal
New material s and design are introduced into existing produc ts without previous not ice.
Present s ystems may dif fer in so me respec ts from th ose pres ented in this catalogue.
The content s 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.
15
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KU26Ver. 1.3
K-array s.r.l. a socio unico società soggetta alla attività di direzione e coordinamento di HP Sound Equipment spa
Sede legale: via Paolina Romagnoli 17 50038 Scarperia e San Piero - Firenze - ITALY tel +39 055 8487222 fax +39 055 8487238
k-array@pec.it 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:01 / 10 / 2015
Model Code:KU26, KU26W
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:2015
Applied by:K-array s.u.r.l.
Via Paolina Romagnoli 17
50038 Scarperia e S. Piero
Firenze Italy
Tel. +39 055 8487222
Fax +39 055 8487238
Signed by:Franco Spataro
Technical Manager
13. CERTIFICATION
16
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