K-array KA24 User Manual

KA24 - KA84

USER GUIDE

English

PRELIMINARY

KA24/KA84

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PRELIMINARY

KA24/KA84

TABLE OF CONTENTS

SYMBOLS 5

1. INTRODUCTION 6

2. KEY FEATURES 6

3. APPLICATIONS 6

4. SAFETY INFORMATION 7

5. UNPACKING 8

6. INCLUDED ACCESSORIES 8

7. PHYSICAL 9

8. IN S TALL ATION 10

9. AC POWER 11

10. FRONT PANEL 11

11. BACK PANEL 11

11.1 POWER SUPPLY 12

11.2 AUDIO CONNECTIONS 12

11.3 REMOTE CONTROL 13

12. TOUCH SCREEN FUNCTIONS 15
HOME PAGE 15
LEVELS 15
MATRIX 15
DEL AY 16
CONFIGURATION 16
PRESET 17
INFO 17

13. REMOTE CONTROL SOFTWARE 17

14. KA-POT1 ACCESSORY 18

14.1 CHANNEL LEVELS ASSIGNMENT 18

14.2 ASSEMBLING AND WIRING 19

15. SERVICE 21

16. SPECIFICATIONS 22
DECLARATIONS OF CONFORMITY 23

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PRELIMINARY

KA24/KA84

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PRELIMINARY

KA24/KA84

SYMBOLS

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.

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PRELIMINARY

KA24/KA84

1. INTRODUCTION

The K-array KA line of power amplifiers are comprised of KA24 and KA84. The KA24 has 4 channels
per 500W on 4Ω and the KA84 has 4 channels per 2000W on 4Ω. Each model has 4 fully independent
and configurable channels. The integrated DSP offers EQ, Matrix, Levels, Delays and Limiter functions
on every channel, to avoid the need of external additional processors. The front panel has an
easy-to-use touchscreen that gives access to all the basic functions for quick setup and corrections.
The KA24 and KA84 can be used as a mixer for fixed installations thanks to the microphone and
Phantom power options available on every analog IN. 2 GPIO ports give easy external analog controls
using K-array accessories.
An on-board K-array speaker preset library gives an optimal and easy configuration for endless
combinations. All DSP functions are remote controlled via the K-framework software over RS485 (3-pin
XLR) or integrated USB connector.
Both amplifiers are built into a 2U light weight aluminium chassis and come with a kit of removable
rack adapters and four rubber pads for flat surfaces.
KA amplifiers feature optical limiters, and protection against over heating, over current and short
circuits.
All KA components are designed by the K-array R&D department and custom made under the K-array
quality control system.

2. KEY FEATURES

• 2000 W or 8000 W in just 2 rack units

• 4 analog IN and 2 AES-EBU IN to 4 fully

configurable OUT

• 2 GPIO for external analog controls

• Mix sensitivity and phantom power is available

in all 4 analogue inputs.

• Integrated DSP with processing, matrix and
delays

• On-board touch screen for easy access functions

• K-array loudspeakers presets already on-board

• RS485 and USB connectivity for remote control

3. APPLICATIONS

• Theatrical sound reinforcement

• Concert halls, clubs, house of worship

• Exhibit audio for museum displays

• Cinema and installed AV systems

• Touring PA and Monitoring

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PRELIMINARY

KA24/KA84

4. SAFETY INFORMATION

Read these instructions - Keep these instructions - Heed all warnings

Warning. Failure to follow these safety instructions could result in fire,
shock or other injury or damage to the device or other property.

This symbol alerts the user to the presence of recommendations about the product’s use and maintenance.

The lighting flash with arrowhead symbol within
an equilateral 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.

IMPORTANT SAFETY INSTRUCTIONS

• Read these instructions.

• Keep this 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 other apparatus

(including amplifiers) that produce heat.

• Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding type plug has two blades and a third grounding prong.
The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the obsolete outlet.

• Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.

• 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.

• Unplug this apparatus during lightning storms or when unused for long periods of time.

• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been

damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate
normally, or has been dropped.

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PRELIMINARY

KA24/KA84

WARNING

• Since the device is a CLASS I apparatus, it must be only connected to an AC three-wire grounding outlet.

If your outlet isn’t grounded, contact a licensed electrician to replace it with a property grounded outlet.

• To reduce the risk of electric shock, disconnect the amplifier from the AC mains before installing audio

cable. Reconnect the power cord only after making all signal connections. Do not use the product if the
power cord is broken or frayed. Protect the power cord from being walked upon or pinched.

• To completely disconnect this apparatus from the ac mains, disconnect the power supply cord plug

from the ac receptacle.

• Voltage requirement. Make sure that the supplied voltage stays within the specified range. Verify that

your mains connection satisfies the power ratings of the device.

• Only connect the power supply to an appropriate power outlet.

• Do not install the amplifier in wet or humid locations without using weather protection.

• TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, do not expose this apparatus to rain or moisture

and objects filled with liquids, such as vases, should not be placed on this apparatus.

• The main plug of the power supply cord shall remain readily accessible.

CAUTION

• 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.

• It is important that loudspeaker systems are used in a safe manner.

• Do not make repairs yourself. Caution, risk of electric shock. Do not open the device, it contains

potentially hazardous voltage. 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. Do not
plug the power cord in if you suspect that your device needs service or repair.

5. UNPACKING

Each K-array amplifier 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.

6. INCLUDED ACCESSORIES

• Power cable 3 m

• USB cable 1.8 m

• Rubber pads for flat surfaces installation

• Rack brackets

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PRELIMINARY