K-array KH15 User manual

USER'S MANUAL REV.04
ENGLISH
KH15
K
array

TABLE OF CONTENTS
2 AC Power Distribution p. 6
3 Voltage Requirements p. 6
4 p. 7
5 Power connector wiring p. 7
6 p. 8
7 Amplification and protection circuitry p. 8
8 DSP & REMOTE control p. 9
9 p. 10
10 Power supply & audio section p. 15
12 Suspending manual p. 17
13 Maintenance of the system p. 18
14 Default speaker presets p. 19
15 Physical & Accessories p. 19
KH15 Presets p. 20
Polar response p. 21
1 Safety instructions p. 5
Current Requirements
Connections
REMOTE control software
11 System configurations p. 16
KH15 Technical data p. 23

1. SAFETY INSTRUCTIONS
This symbol, wherever it appears, alerts you to
important operating and maintenance istructions in
the accompanying literature. Read the manual!
P. 5
USER'S MANUAL
CAUTION
!
• amplifier
amplifier
amplifier
amplifier
• The amplifier should be placed so that its location does not interfere with its proper
ventilation. For example, the appliance should not be situated on a bed, carpet, or similar
surface that may create an obstacle for the ventilation openings.
amplifier
To reduce the risk of electric shock, disconnect the from the AC mains before
installing audio cable. Reconnect the power cord only after making all signal connections.
• Connect the to a two-pole, three wire grounding mains receptacle. The
receptacle must be connected to a fuse or circuit breaker. Connection to any other type of
receptacle poses a shock hazard and may violate local electrical codes.
• Do not install the amplifier in wet or humid locations without using weather protection.
• Do not allow water or any foreign object to get inside the . Do not put objects
containing liquid on, or near, the unit.
• To reduce the risk of overheating the , avoid exposing it to direct sunlight. Do
not install the unit near heat emitting appliances, such as a room heater or stove.
• This contains potentially hazardous voltages. Do not attempt to disassemble
the unit. The unit contains no user serviceable parts. Repairs should be performed only by
factory trained service personnel.

All amplifier modules and the rest of the audio equipment connected to it (mixing consoles, processors, etc.) must be connected to
the AC power distribution in a properway, preservingAC line polarity and connecting earth ground such that all grounding points are
connected to a single node or common point using the same cable gauge as the neutral and line(s) cables. Bad grounding
connections between speakers and the rest of the audio system may produce noise, hum and/or serious damage to the input/output
stages in the system’s electronic equipment.
Before applying AC to any K-array self-powered speaker, be
sure that the voltage potential difference between neutral and
earth ground is less than 5 VAC.
If the Display does not illuminate or the
system does not respond to audio input after
ten seconds, remove AC power immediately.
Verify that the voltage is within the proper
range. If the problem persists please contact
HP Sound Equipment or an authorized
service center.
It is recommend that the supply be operated in the
rated voltage windows, at least a few volts away
from the turn on/off points so that small AC voltage
variations do not cause the amplifier to cycle on and
off.
2. AC POWER DISTRIBUTION
3. VOLTAGE REQUIREMENTS
WHEN YOU SWITCH ON THE UNIT:
CAUTION
CAUTION
NOTE
The main power supply slowly ramps on t he green display on the user panel lights up, and the green leds on the left side lights
up flashing, indicating that the system is enabled and ready to process audio signals.
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USER'S MANUAL
!
!
Connecting a 115V system on a 230V AC Power causes heavy
damages to the device and serious risk for users .
CAUTION
!
KH15 is default set to be connected to 230 V
AC.
The KH15 operates safely and without audio discontinuity if the AC voltage stays within either of two operating windows:
95-125 (voltage selector on 115 V) or 195-250 V (voltage selector on 230 V), at 50 or 60 Hz.
To use the device on a 115 V AC Power you need, before connecting it, to move the voltage selector's cover, just loosening the two
screws, and to choose the correct use voltage by the red switch. Be sure that both voltage set on the selector and AC Power have
the same value . Always close the voltage selector's cover before connecting the device to AC Power. Change the label that points
out the correct voltage in use.
115-230

The KH15 presents a dynamic load to the AC mains, which causes the amount of current to fluctuate between quiet and loud
operating levels. Since different cables and circuit breakers heat up at varying rates, it is essential to understand the types of current
ratings and how they correspond to circuit breaker and cable specifications. The maximum continuous RMS current is the maximum
RMS current in a period of at least ten seconds. It is used to calculate the temperature increase in cables, which is used to select
cables that conform to electrical code standards. It is also used to select the cable size and gauge and the rating for slow-reacting
thermal breakers. The maximum burst RMS current is the maximum RMS current in a period of approximately one second. It is used
to select the rating for magnetic breakers. The maximum instantaneous peak current during burst is used to select the rating for
fast-reacting magnetic breakers
For best performance, the AC Cable voltage drop should not exceed 10% at 115V and 5% at 230V.
The minimum electrical service amperage required by a system of KH15 is the sum of their maximum continuous RMS
current. We recommend allowing an additional 30% above the minimum amperage to prevent peak voltage drops at the
service entry.
The KH15 requires a grounded outlet. It is very important that the system be properly grounded for both safety and proper operation.
4. CURRENT REQUIREMENTS
5.
P. 7
USER'S MANUAL
The KH15 requires a ground connection.
Do not operate the unit if the power cables are frayed or broken.
Keep all liquids away from the KH15 amplifiers to avoid hazards from electrical
shocks.
CAUTION
CAUTION
CAUTION
!
!
!
KH15 Current Rating:
115 VAC = 10A Max Continuous RMS
230 VAC = 6A Max Continuous RMS
115 VAC = I. Nom 3.6A
230 VAC = I. Nom 2.2A
POWER CONNECTOR WIRING CONVENTIONS

The KH15 presents a 10k ohm balanced input impedance to a three-pin XLR connector with the following connectors:
pin1 = Ground
pin2 = Signal +
pin3 = Signal -
The is powered by a high-power 2-channel digital amplifiers (750 watts/ch. RMS) with a total power of 1500 watts. All the
specific functions for the such as crossovers, frequency, phase response, and driver protection are determined by a DSP
processor installed inside the amplifier. All K-array loudspeakers are shipped with the drivers in correct alignment. However, if a
driver needs to be replaced, make sure the replacement is reinstalled with the correct polarity. Incorrect driver polarity impairs the
system performance and may damage the drivers.
KH15
KH15
Use standard audio cables with XLR connectors for balanced signal sources. Make sure that pin 1 (shield) is always connected on
both ends of the cable.
Audio signals can be easy-chained using the loop output connector on the user panel of the . A single source can drive multiple
with a paralleled input loop, creating an unbuffered hard-wired loop connection. When driving multiple in an array, make
certain that the source device can drive the total load impedance presented by the paralleled input circuit of the array. The audio
source must be capable of producing a minimum of not distorted 20 dBV (10-Vrms into 600 ohms). The maximum peak SPL over the
operating bandwidth of the loudspeaker is generated by +4dB input signal (1.230 V. ).
If abnormal noises such as hiss and popping are produced by the loudspeaker, disconnect the audio cable from the
speaker. If the noise stops, then most likely the problem is not with the loudspeaker. Check the audio cable, source, and AC power
for the source of the problem.
KH15
KH15 KH15
RMS
Shorting an input connector pin to the case can form a ground loop
and cause hum.
CAUTION
6. CONNECTIONS
7. AMPLIFICATION AND PROTECTION CIRCUITRY
P. 8
USER'S MANUAL
!

KH15 have a powerful DSP that manages all the functions of the speakers. Each system can store on board 16 preset that can be
recalled pushing the PRESET button. Once the preset will appear on the lower line of the display it will become automatically
available after few seconds. If you desire to set a preset as “default”you just need, once selected it, to keep pressed for five seconds
the PRESET button. After that, this preset will automatically be recall each time you will switch on your module. It is also possible to
remote each module by an RS485 serial port. In order to remote your system, you need to set each module on a different address, so
that, in your chain, no one module will have the same address. Two rotary encoders allow you to set the desired address number that
will appear on the top line of the display. Using the remote control software it is possible to mute each system, select a desired preset
loaded on-board or download a new preset pack.
For remote control operation please refer to REMOTE CONTROLAND SOFTWARE MANUAL in the next pages.
8. DSP CONTROL & REMOTE CONTROL
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USER'S MANUAL
8.1 Cloner function & preset systems
It is possible to clone the entire presets bank from Speaker to Speaker without any PC connected. We will call SpeakerA
the one with the presets bank that you want clone, and SpeakerB the one that will be upgraded.
Set the SpeakerA on ID 99, will appear CLONER on the display
Keep SpeakerB on any ID number between 10 and 90.
Turn off both the speakers and connect by a RJ45 8 poles cable
Turn on the SpeakerB and after the SpeakerA
SpeakerA will start to clone, on the display will appear a cont down (00/15, 01/15, etc)
Wait till 20 seconds after 15/15
Change the ID of the SpeakerA to any other ID and turn off both Speakers
Turning on the SpeakerA check that it is on mode 16x16 and NOT 4x4.
If SpeakerA is in mode 4x4, just turn off the speaker and keep press the Preset button during the turning on
The preset are cloned to the SpeakerB
ID 39
KH15F03
12345
6 7
1
4.
2
3
5
6
7
8
9
. Addres for remote control
. Preset loaded
. Voltage selector
.
From PC or previous module
To next module
. Preset scroll
. Address X1
. Address X10
. Reset button
8 9

P. 10
USER'S MANUAL
9. REMOTE CONTROL SOFTWARE
1 . To connect the K-array modules to a PC, it is needed a RS485-USB adapter, we recommend the K-USB adapter (pic.1).
2 . Install the K array control software from installer in the CD-ROM
2.1 Start the Karray_manager_V2 from Windows - Start - Software - Karray_manager_V2
2.2 Click on NO when ask for demo mode start
2.3 Click on System - Settings to configure which COM port use, the COM port of K-USB, usually is the higher number.
If you don't find, you can check it on windows-control panel-system-hardware-COM Port
Connect the K-usb to a PC and install the drivers required included in the CD-ROM.
K-USB
USB to RS485 adapter
1
Operating systems:
Minimum requirements:
Recommended requirements:
Win98/98SE/Me/2000/XP/Vista
CPU 300 MHz
RAM 128 Mb
RAM 512 Mb
SYSTEM REQUIREMENTS