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USER MANUAL
KA7-7
KA7
Page 2
Page 3
CONTENTS
ENGLISH
SYMBOLS 5
DECLARATION OF CONFORMITY 7
1.INTRODUCTION 9
2. APPLICATIONS 9
3. KEY FEATURES 10
4. UNPACKING 10
5. ACCESSORIES INCLUDED 10
6. PHYSICAL 11
7. POWER SUPPLY AND VOLTAGE REQUIRED 12
8. BACK PANEL 12
8.1 CONNECTORS AND WIRING 13
8.2 ID ASSIGNMENT 14
ID numbers 15
9. FRONT PANEL 16
10. eDSP SOFTWARE 16
11. RACK ADAPTER 22
12. SERVICE 23
13. WARRANTY 23
14. TECHNICAL DETAILS 25
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4
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This symbol alerts the user to recommendations about the product’s use
and maintenance.
This symbol, wherever it appears, alerts you to important operating and
maintenance instructions in the accompanying literature. Read the manual!
Warning! Dangerous voltages: RISK of electric schock.
K-array declares that this device is in compliance with the applicable
CE standards and regulations. Before putting the device into opera-
tion, please observe the respect ive count ry-specic regulations!
WEEE
Please dispose of this product at the end of its operational lifetime
by bringing it to your local collection point or recycling centre for
such equipment.
This device complies with Restriction of Hazardous Substances Directive.
SYMBOLS
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SAFETY INSTRUCTION
WARNING
• To reduce the risk of electric shock, disconnect the amplier from the AC mains
before installing audio cable. Reconnect the power cord only after making all signal
connections.
• Connect the amplier 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 amplier in wet or humid locations without using weather protection.
• Do not allow water or any foreign object to get inside the amplier. Do not put objects
containing liquid on, or near, the unit.
• To reduce the risk of overheating the amplier, avoid exposing it to direct sunlight. Do
not install the unit near heat emitting appliances, such as a room heater or stove.
• No naked ame sources such like lighted candles should be placed on the device.
• The amplier 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.
• CAUTION, RISK OF ELECTRIC SHOCK, DO NOT OPEN. This amplier 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.
• Be sure that both voltage set by the selector on the device and AC Power have the
same value.
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7
The contents of this manual are furnished for informational purpose only. Hp Sound
Equipment s.r.l. assumes no responsability for any errors or inaccuracies thatmay ap-
pear in this manual. Hp Sound Equipment s.r.l. reserves the right to make modications
without prior notice.
DECLARATION OF CONFORMITY
WEEE
This device complies with the essential protection requirements of
Council Directive 89/336/EEC for the implementation of the Laws
of the Member States relating to electromagnetic compatibility. This
declaration applies to all specimens and manufacturing drawings
which form part of this declaration. Assessment of compliance
of the product with the requirements relating to electromagnetic
compatibility was based on the following standards.
Please observe the respective country-specic regulations!
EN 55013:1990+A12+A13+A14
EN 55020:1994+A11+A12+A13+A14
EN 61000-3-2:1995+A1+A2+A14
EN 61000-3-3:1995
EN 60065:1998
IEC 60065:1998
Please dispose of this product at the end of its operational lifetime by
bringing it to your local collection point or recycling centre for such
equipment.
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8
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9
1.INTRODUCTION
The KA professional rack amplier
line has been designed to meet all
the needs of touring and installation
applications in which need a large
amount of power together with the
maximum exibility, small sizes
and weight. The sophisticated
electronics on-board allow the
system to reach outstanding output
power levels with high efciency.
The on-board DSP provide perfect
signal processing for all K-array
products, providing safe working
conditions and a wide choice of
dedicated presets to solve most
needs of high-end applications.
KA7 /KA7-7
High technology Class D power amplier
2. APPLICATIONS
• Theatrical sound reinforcement
• Concert halls, clubs, houses of worship
• Exhibit audio for museum displays
• Cinema and installed AV systems
• Stage monitoring
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3. KEY FEATURES
• Very light weight
• Compact design, 2 units half rack
• Optical limiters
• Electronically protected
• Over-high efciency
• DSP on-board to drive all K-array products
• Remote control via USB or RS485
• Management software
• Top quality components for outstanding performance
• Aluminum frame
4. UNPACKING
Each K-array device is built to the highest standard and thoroughly inspected before
leaving the factory. Carefully inspect the shipping carton, then examine and test your new
loudspeaker. If you nd any damage immediately notify the shipping company. Only the
consignee may institute a claim procedure regarding the system’s electronic equipment.
5. ACCESSORIES INCLUDED
• 1 x CD-ROM
• 1 x CAT 5, 50 cm cable
• 1 x 50cm xlr cable
• 1 x power link cable
• 1 x Rack adapter kit
• 1 x User’s manual
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6. PHYSICAL
27 cm 20 cm
8.8 cm
20 cm
27 cm
20 cm
8.8 cm
20 cm
27 cm
Weight:
KA7 4.03 Kg (8.89 lbs)
KA7-7 4.44 Kg (9.79 lbs)
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1
1. Powercon IN
2. Powercon OUT (max 15A)
3. Speakon1 OUT (CH1, CH2)
4. Speakon1 OUT (CH3, CH4)
5. DIP Switch ID assigment
6. USB remote control connector
7. RS485 remote control connectors
8. Input 1 level PAD
5 6 8 10
111314 15
12
9
7
4
1
2
3
9. Input 2 level PAD
10. Input 1 ground lift switch
11. Input 2 ground lift switch
12., 13. Input 1 XLR balanced parallel
connectors
14., 15. Input 2 XLR balanced parallel
connectors
KA7 and KA7-7 operate safely and without audio discontinuity if the AC voltage stays
within an operating window of 90 V to 260 V.
Check the voltage before connecting the amplier to the AC power.
A higher voltage could seriously damage the device.
7. POWER SUPPLY AND VOLTAGE REQUIRED
8. BACK PANEL
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8.1 CONNECTORS AND WIRING
SPEAKON 1 OUT SPEAKON 2 OUT
CH1 +
CH2 +
CH1 -CH2 -
CH2 -
2+2+
1+1+
2-2- 1-1-
CH1 in
CH1
hot
XLR connecto r
CH1
grd
CH1
cold
CH1
hot
CH1
grd
CH1
cold
CH1 out CH2 in
CH2
hot
XLR connecto r
CH2
grd
CH2
cold
CH2
hot
CH2
grd
CH2
cold
CH2 out
2
1
3
2
1
3
2
1
3
2
1
3
SPEAKON 1 OUT SPEAKON 2 OUT
CH3 +CH1 +
CH2 +
CH3 -CH1 -CH2 -
2+2+
1+1+
2-2- 1-1-
CH1 in
CH1
hot
XLR connecto r
CH1
grd
CH1
cold
CH1
hot
CH1
grd
CH1
cold
CH1 out CH2 in
CH2
hot
XLR connecto r
CH2
grd
CH2
cold
CH2
hot
CH2
grd
CH2
cold
CH2 out
CH4 +
CH4 -
2
1
3
2
1
3
2
1
3
2
1
3
KA7
KA7-7
N.C.
N.C.
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RS485
K-USB
ACCESSORY
DIRECT USB
CABLE
RS485
USB
USB
AMPLIFIER’S
DSP
AMPLIFIER’S
DSP
PC
PC
The USB and RS485 connectors allow a PC to be connect to the device to
set the DSP processor. You can plug either a direct USB cable or the K-USB
adapter into RS485.
Each amplier can be identied with an ID number (up to 30 different choices)
by setting the rst ve selectors of the DIP SWITCH on the rear panel.
Always set up the sixth selector in the last device connected, even if there is
only one unit.
It is possible to connect multiple modules to the RS485 connection, up to 31
IDs.
8.2 ID ASSIGNMENT
last device
connected
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ID numbers
This conguration of the dip
switches (ID = 31) is reserved.
eDsp will not recognize the
connected device.
Do not use this conguration.
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9. FRONT PANEL
KA7
1 3 52 4 5 6
1. Protection indicator
2. Indicator of proper operating
3. Indicator of signal/clip CH1 IN
4. Indicator of signal/clip CH2 IN
5. Power switch
SYSTEM REQUIRED
Operating systems:
Win XP/ Vista / 7.
Minimum requirements:
CPU 300 MHz
RAM 128 Mb
Recommended requirements:
RAM 512 Mb
The amplier is equipped with two INPUTS
and four DSP OUTPUTS that work using
K-array eDSP software.
This software runs on all Windows PCs,
it communicates via USB or RS485
(K-USB).
The eDSP software allows you to manage
EQ, Dynamics and signal levels in real
time.
The amplier out of the box has no on
board preset loaded. It’s necessary to
connect it via USB the rst it is used, and
upload the right preset for your application.
10. eDSP SOFTWARE
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1. Do not plug in the USB before installing the software.
2. Install the eDSP software included in the CD-ROM. The software can be downloaded from the website too.
3. Connect the amplier via USB and install the driver from the installed software
folder on your HD (e.g. C:\Program\K-array\K-eDsp\CDM20602)
4. Run the eDSP software
5. If the window shown in pic.1 appears, click on No and select the connection
mode that you are using as shown in pic.2.
pic.1
pic.2
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6. Go to the network (pic. 3) page and click on the connected ID (the unit highlighted
in yellow)
7. On the INFO page (pic.4) you can see the amplier details such as name (editable),
rmware version and ID.
pic.3
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8. Click on the USER button (shortcut: F4), from here you can change EQ, levels and
dynamics.
pic.4
1
2
3
1. Click here to get the stored parameters from the device memory to the software.
2. Click here to send the current software parameters to the DSP module.
3. Click here to upgrade the rmware when new versions come out.
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pic.5
1
2
3
4
5
6
7
1. Four different cells of EQ. can be enabled in three different modes: Low
Shelf, High Shelf or Peak. The Low and High Shelf lters boost (or reduce)
energy at the set frequencies and all frequencies above it(in low shelf) or below
it (in high shelf) . The Peak lter boosts (or reduces) energy at the set frequency
and across a band of frequencies close to the set frequency.
2. The ‘Q’ value sets the width of the band of frequencies that will be boosted
(or reduced)
3. The ‘Freq’ value sets the frequency around which you are operating.
4. The ‘Gain’ value sets how much energy has to be boosted (or reduced)
around the set frequency.
5. Main CH1 INPUT level
6. Dedicated stereo dynamic processor.
7. Press the ‘Link’ button to group together CH1 and CH2 settings.
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Once the settings are nished you have to store them to the eeprom by clicking on
Store to eeprom (F11) in the ‘Preset’ menu.
To save the preset you have made click save on the ‘Preset’ menu.
To load a previously stored preset click load on the ‘Preset’ menu.
To send a preset to all the connected modules click load to all in the ‘Preset’ menu.
To send and store the same preset to all the connected modules click load and store
to all in the ‘Preset’ menu.
To load and store at once a preset on the actual eDSP click on load and store to
node in
the ‘Preset’ menu.
If you want to send one preset to different groups of IDs click send preset to ID in the
preset menu.
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SINGLE RACK
DOUBLE RACK
DEVICE A
spacers
DEVICE B
S1 S2
S1
S2
Fix the two rack
adapters using the
supplied screws
as shown in the
drawing.
Unscrew the 4
anchor points of
the front panels
and remove
them.
Attach the two devices using
the last two screws and x the
rack adapters.
Remove the
smaller steel
spacer (S2)from
DEVICE A
and adjust S1
11. RACK ADAPTER
on DEVICE B as in the
diagram on the left. Then
ret the front panels
xing all four screws on
DEVICE B and the two
screws through S1 on the
DEVICE A .
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Cleaning:
• Clean the product enclosures using a soft, dry cloth only.
• 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.
To obtain service:
1) Contact the ofcial K-array distributor in your country. They will direct you to the
service centre.
2) If you are calling for service, have the serial number(s) of the unit(s) at hand 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 must return the unit for
service.
4) You will be given an RA (Return Authorization) number for job tracking. Refer to
this number on shipping materials and in all correspondence concerning 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.
K-array KA7-7 are warranted against manufacturing defects in materials or
craftsmanship over a period of 2 years from the date of original purchase. During the
warranty period K-array will, at its discretion, either repair or replace products which
prove to be defective, provided that the product is returned in its original packaging,
shipping prepaid, to an authorized K-array service agent or distributor. K-array cannot
be held responsible for defects caused by unauthorized modications, improper use,
negligence, exposure to inclement weather conditions, acts of God or accidents, or any
use of this product that is not in accordance with the instructions provided by K-array.
K-array is not liable for consequential damages.
This warranty is exclusive and no other warranty is expressed or implied.
This warranty does not affect your statutory rights.
12. SERVICE
13. WARRANTY
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KA7 KA7-7
Output power
Max power 4Ω 2 x 350 w
(EIAJ)
4 x 350 w
(EIAJ)
Max power 8Ω 2 x 190 w
(EIAJ)
4 x 190 w
(EIAJ)
Max power - bridged 4Ω 1000 w
(EIAJ)
Max power - bridged 8Ω 700 w
(EIAJ)
Connectors 2 x 4-pin Speakon 2 x 4-pin Speakon
Speakon 1 wiring pin 1+,1- = CH1 pin 2+, 2- = CH2 pin 1+,1- = CH1 pin 2+, 2- = CH3
Speakon 2 wiring pin 1+,1- = CH2 pin 2+, 2- = N.C. pin 1+,1- = CH2 pin 2+, 2- = CH4
Audio specs
Slew rate 8Ω 30V/mS 30V/mS
S/N Ratio >113 dB/A >113 dB/A
Distorsion (THD, DIM, SMPTE) <0.005% <0.005%
Input impedance 20K bal. 10K unbal. 20K bal. 10K unbal.
Gain 32 dB 32 dB
Output Unbalanced to ground Unbalanced to ground
Bandwidth 3 Hz - 45 KHz 3 Hz - 45 KHz
Damping factor 8Ω (100 Hz) >1000 >1000
Protection
Thermal protection Yes Yes
Short circuit / over-load Yes Yes
Clip limit,
Analog signal limit
Yes Yes
Audio Input
Connectors 2 x Male + 2 x Female 3-pin bal .XLR 2 x Male + 2 x Female 3-pin bal .XLR
Wiring Pin1 = Ground / Pin2 = hot (+) / Pin3 = cold (-) Pin1 = Ground / Pin2 = hot (+) / Pin3 = cold (-)
Remote control Input
Connectors RJ45 / USB RJ45 / USB
Remote control
Protocol RS485 / USB RS485 / USB
Power Input
Connectors 2 x PowerCon IN/OUT 2 x PowerCon IN/OUT
AC power
Operating range 90 - 260 Vac 50-60Hz with PFC (auto range) 90 - 260 Vac 50-60Hz with PFC (auto range)
P. nom 140 VA 140 VA
Max input voltage 265 Vac 265 Vac
Power factory
(1/2 max out/ 8Ω)
0.97 0.97
Minimum operation voltage
70 Vac 70 Vac
Physical
Dimensions
20 (1/2 U rack) x 8.8 (2U rack) x 27 cm
(7.87”x 3.46”x 10.63”)
20 (1/2 U rack) x 8.8 (2U rack) x 27 cm
(7.87”x 3.46”x 10.63”)
Weight 4.03 Kg (8.89 lbs) 4.44 Kg (9.79 lbs)
Notes for data
New materials and design are introduced into existing products without previous notice. Present systems may differ in some
respects from those presented in this brochure
14. TECHNICAL DETAILS
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NOTES
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APPROVAL
WEEE
Please dispose of this product at the end of its operational lifetime by bringing it to your local collection point or recycling
centre for such equipment.
K-array declares that this device is in compliance with the applicable CE standards and regulations.
Before putting the device into operation, please observe the
respective country-specic regulations!
The contents of this manual are furnished for informational purpose only. Hp Sound Equipment s.r.l. assumes no responsability for any errors or inaccuracies that may appear in this manual.
Hp Sound Equipment s.r.l. reserves the right to make modications without prior notice.
Page 28
k-array is a brand of
HP Sound Equipment s.r.l.
Viale Roma 7/i - 50037
San Piero a Sieve (Firenze) - Italy
tel. +39 055 8487222 - fax. +39 0558487238
e-mail: info@k-array.com
www.k-array.com
UMCA77AA01ENb
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