K-array Rumble-KU315 User manual

USER GUIDE
•20230915•
Ultra-thin passive subwoofer with 3x15” cone drivers
Rumble-KU315

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Rumble-KU315
User Guide
3
• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with dry cloth.
• Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or

• 

blades and a third grounding prong. The wide blade or the third prong is provided


• 
• Protect the power cord from being walked on or pinched particularly at the plugs,

• Clean the product only with a soft and dry fabric. Never use liquid cleaning
products, as this may damage the products cosmetic surfaces.
• 
manufacturer, or sold with the apparatus. When a cart is used, use caution when

• Unplug this apparatus during lightning storms or when unused for
long periods of time.
• 


• 
apparatus has been damaged in any way, such as power-supply cord or plug is

apparatus has been exposed to rain or moisture, does not operate normally, or
has been dropped.
• 
only. To reduce the risk of electric shock, do not perform any servicing other than

• 

• 
minimum.
• Use only speaker cables for connecting speakers to the speaker terminals. Be
 General heed and warnings
This symbol alerts the user to the presence of recommendations
about the product’s use and maintenance.

triangle is intended to alert the user to the presence of uninsulated,
dangerous voltage within the product enclosure that may be of
magnitude to constitute a risk of electrical shock.
The exclamation point within an equilateral triangle is intended to alert
the user to the presence of important operating and maintenance

Operator’s manual; operating instructions

operating instructions and indicates that the operating instructions
should be considered when operating the device or control close to
where the symbol is placed.
For indoor use only
This electrical equipment is designed primarily for indoor use.

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.

Directive.
WARNING
Failure to follow these safety instructions could

the device or other property.
This apparatus is intended for professional use.



Rumble-KU315
User Guide
4






range can damage the apparatus.
• K-array cannot be held responsible for damage caused by improper use of the
loudspeakers.
• 

This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which

to correct the interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. 
3. 
the receiver is connected.
4. 
          
        

         

• 
• this device must accept any interference, including interference that may cause
undesired operation of the device.
The device meets the exemption from the routine evaluation limits in section 2.5

information on RF exposure and compliance.
This equipment should be installed and operated with a minimum distance of 20



Rumble-KU315
User Guide
5
Index
Introduction 6
Key Features 7
 
Finishes 7
 
Package contents 7
Rear panel 8
Wiring 8
IP65 protection seal 8
Installation 9
Rigging / Suspension 10
 
Service 12
Cleaning 12
Mechanical Drawing 13
 13

Rumble-KU315
User Guide
6

To ensure proper operation, please carefully read the owner’s
manuals and safety instruction before using the products.

       
device please contact K-array customer service at

in your country.
The Rumble-KU315 is the most powerful passive subwoofer in

Made from water-resistant polyurea-coated birch plywood, this
ultra-thin subwoofer features a 1x 15” neodymium transducer
           
applications.
       
openings but instead features two more 15” passive radiators
that ensure the transducer excursion is as linear as possible
with minimum residual noise. This design, along with durable

the Rumble-KU315 resistant to tough weather conditions and
suitable for outdoor installations.

Rumble-KU315
User Guide
7
Unpacking
Package Contents
         
thoroughly inspected before leaving the factory.
Upon arrival, carefully inspect the shipping carton, then examine

notify the shipping company.
1. 1x Rumble-KU315 subwoofer
2. 
3. 
Key Features
• Compact and closed enclosure
• 1x15” woofer and 2x15” passive radiators
• Durable and resistant frame
• 
• 
Applications
• Outdoor applications
• Marine applications
• Theaters
• 
Finishes
• Rumble-KU315 black model
• Rumble-KU315W white model
• 
The Rumble-KU315 enclosure is constructed from durable
aluminum and features a fully sealed design. Its grille is
specially treated to resist even the harshest weather

the Rumble-KU315 is ideally suited for outdoor installation in
extreme environments or marine settings.
1+
1–

Rumble-KU315
User Guide
8
Rear Panel

subwoofer as is shown in the picture below.

IP65 protective seal
Installation
The Rumble-KU315 is extensively used in outdoor application
and comes equipped with a high-quality rubber protection piece

it’s installed on the input connector to prevent water and salt


To install IP65 protection please follow the procedure shown
below:
1. Before proceeding, ensure that you have all the supplied



components
One-channel wiring


2. rubber cover
and gasket
2. Choose a cable with a sheath for greater insulation and
pass it through the rubber cover accessory and trough
the cable gland.
2+
1+
1-
2-
2+
1+
1-
2-
2+
1+
1-
2-
12 mm
[0.5 in]
1+
1+
1–
1–
2–2+
1+1–
2–2+
24 mm
[1 in]
1+
1–
2+ 2–
Spk2+
Spk +
Spk2–
Spk1+
Spk1–
Spk –
Spk1+
Spk1–
Spk2+
Spk2–
Speaker 1
Speaker 2
SpeakON NL4
connector
SpeakON NL4
connector
SpeakON NL4
connector
SpeakON NL4
connector
1+1–
2–2+
2+ 2–
Spk+
Spk–
SpeakON NL4
connector
1+
1–
1+
1–
1+
1–

Rumble-KU315
User Guide
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3. 
4. 
on the back panel. To do so, first, pass it around the head
of the male connector to be plugged in.
5. Then plug the connector to the subwoofer and turn it
clockwise together with the gasket to ensure a secure
connection.
6. The Rumble-KU315 is finally installed with IP65 protection
accessory and sealed against water.
1+
1–
1+
1–

Rumble-KU315
User Guide
10
Rigging / Suspension
The Rumble-KU315 subwoofer can be suspended

at the sides of the unit and hang it to the rigging point.
Settings

The Rumble-KU315 passive subwoofer should be paired with any
      
       
requirements.
Configuration
1. 

2. natural
preset
3. 
correctly. Play audio and check for any issues or


Rumble-KU315
User Guide
11
Service
To obtain service:
1. 
reference.
2. 

Please describe the problem clearly and completely to the

3. 
4. If the problem cannot be resolved over the phone, you may
be required to send the unit in for service. In this instance,

number which should be included on all shipping
documents and correspondence regarding the repair.

         


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.

Rumble-KU315
User Guide
12
Mechanical Drawings
1230mm
48,4in
450mm
17,7in
11mm
0,4in
746mm
29,4in
120mm
4,7in
1120mm
44,1in
100mm
3,9in
70mm
2,8in
125mm
4,9in
250mm
9,8in
210mm
8,3in
118mm
4,6in

Rumble-KU315
User Guide
13
Technical specifications
Type Passive subwoofer
Transducers 1x 15” neodymium magnet woofer
2 x 15” passive radiator
135 Hz - 150 (-6 dB)
Max SPL 2137 dB (peak)
Rated Power 2000 W
Coverage Omni
 4 Ω
Connectors 1x SpeakON NL4
1+ 1- signal
Handling & Finishes
Material polyurea coated birch plywood
Colors Black, White, Custom RAL
IP Rating 3 IP64
4
(W x H x D):
1230 x 450 x 250 mm (48.4 x 17.7 x 9.8 in)
Weight 40 kg (88.18 lb)
1With dedicated preset.
2 
scaled at 1 m.


Designed and Made in Italy



