KGEAR GPXA User manual

•20220427•
USER GUIDE
2x 18" Active/Passive Subwoofers + 4x12" Slim Array Systems
GPXA / GPX
KGEAR by K-array surl
via P. Romagnoli 17 - 50038 - Scarperia e San Piero -
Firenze - Italy - www.kgear.it
PRESET
PRESET
SELECT
Thank you for choosing KGEAR!
To ensure proper operation, please
carefully read this owner’s manual and
safety instruction before using the product.
After reading this manual, be sure to keep
it for future reference.
Should you have any questions about
your new device please contact K-array
customer service at [e-mail] or contact
the local distributor in your country.
Heavy duty 2x18” subwoofer combined
with two metal frame GH12 12” coaxial
array modules featuring the K-array™ SAT®
technology.
The active GPZA system is powered by
a 4-channel Powersoft™ amplifier module
with DSP delivering up to 1500 W per
channel @ 4 ohm: the built in amp module
makes the GPZA capable of driving a GPZ
passive system in a stereo configuration.
Unpacking
Each KGEAR device is inspected before
leaving the factory. Upon arrival, carefully
inspect the shipping carton, then examine
and test your new device. If you find any
damage, immediately notify the shipping
company. Check that the following parts
are supplied with the product:
KGEAR GPXA
• 1x GH412 4x12" array speaker
• 1x GSX218A active subwoofer
• 1x G-PINM20 pivot
• 1x 2m (6.5ft) speaker cable
• 1x Power cord
KGEAR GPX
• 1x GH412 4x12" array speaker
• 1x GSX218A active subwoofer
• 1x G-PINM20 pivot
• 1x 2m (6.5ft) speaker cable
AC MAINS Supply
GPXA
The GPZA features a powered subwoofer:
the AC Main connection is made via the
provided power cord with powerCON TRUE
flying connector.
Insert the powerCon TRUE flying
connector into the inlet and then rotate
it clockwise: once properly plugged, the
amplifier will power up.
Rear Panel
GPXA - GSX218A
1. Status LEDs
2. Volume potentiometer
3. DSP preset selection button
4. RJ45 Ethernet port
5. XLR Combo balanced input channel 1
6. XLR Combo balanced input channel 2
7. NL4 SpeakON B speaker output 3 and 4
8. NL4 SpeakON A speaker output 1 and 2
9. powerCON TRUE AC MAIN inlet
GPX - GS218
A. NL4 SpeakON A: signal in/out
B. NL4 SpeakON B: signal in/out
ArmoníaPlus
ArmoníaPlus is the software for fine
tuning and monitoring the KGEAR GPXA
loudspeaker system.
Download ArmoníaPlus from Powersoft
website: www.powersoft.com
1
2
3
4
5
A
6
B
7
8
9

GPXA / GPX
IMPORTANT SAFETY INSTRUCTIONS
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.
The exclamation point within an equilateral
triangle is intended to alert the user to
the presence of important operating and
maintenance (servicing) instructions in this
guide.
For indoor use only
This electrical equipment is designed
primarily for indoor use.
Operator’s manual; operating instructions
This symbol identifies the operator’s manual
that relates to the operating instructions
and indicates that the operating instructions
should be considered when operating the
device or control close to where the symbol
is placed.
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.
This device complies with Restriction of
Hazardous Substances Directive.
Warning. Failure to follow these safety
instructions could result in fire, shock or
other injury or damage to the device or
other property.
General heed and warnings
• 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 other
apparatus (including amplifiers) that produce heat
• Do not defeat thesafetypurpose of the polarized
or grounding plug. A polarized plug has two
blades with one wider than the other. A grounding
plug has two blades and a third grounding prong.
The wide blade or the third prong is provided for
yoursafety. If the provided plug does not fit into
your outlet, consult an electrician for replacement
of the obsolete outlet.
• Only use attachments/accessories specified by
the manufacturer.
• Protect the power cord from being walked on or
pinched particularly at the plugs, convenience
receptacles, and at the point where they exit from
the apparatus.
• Clean the product only with a soft and dry fabric.
Never use liquid cleaning products, as this may
damage the products cosmetic surfaces.
• 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.
• Avoid placing the product in a location under
direct sunlight or near any appliance that
generates UV (Ultra Violet) light, as this may
change the product surface finishing and cause a
change in color.
• 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.
Installation and commissioning may only be carried
out by qualified and authorized personnel.
These apparatus are intended for professional use.
• CAUTION: These servicing instructions are for use
by qualified service personnel only. To reduce the
risk of electric shock, do not perform any servicing
other than that contained in the operating
instructions unless you are qualified to do so.
• WARNING: Only use attachments/accessories
specified or provided by the manufacturer (such
as the exclusive supply adapter, battery, etc.)
• Before turning the power on or off for all devices,
set all volume levels to minimum.
• Use only speaker cables for connecting speakers
to the speaker terminals. Be sure to observe the
amplifier’s rated load impedance particularly
when connecting speakers in parallel. Connecting
an impedance load outside the amplifier’s rated
range can damage the apparatus.
• KGEAR cannot be held responsible for damage
caused by improper use of the loudspeakers.
• KGEAR will not shoulder any responsibilities for
products modified without prior authorization.
Assembling instructions
Tightly screw the G-PINM20 on top of
the subwoofer, then set the GH412 array
element on top of the pivot.
Service
To obtain service:
1. Please have the serial number(s) of the
unit(s) available for reference.
2. Contact the official KGEAR distributor
in your country: or KGEAR headquarter
at [e-mail]. Please describe the
problem clearly and completely to the
Customer Service.
3. You will be contacted back for on-line
servicing.
4. 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.

GPXA / GPX
IN1
OUT1 OUT2 OUT3 OUT4
IN2
IN routed to OUT
IN not routed to OUT
PRESET
PRESET
SELECT
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
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
Subwoofer
Transducer
SpeakON A SpeakON B
Column
Transducers
2+
2–
PRESET
PRESET
SELECT
PRESET
PRESET
SELECT
PRESET
PRESET
SELECT
GPXA wiring
Once assembled, use the 2 m (6.5 ft) long
speaker cable to connect one speakON
connector on the GH12 rear panel to
the speakON A connector on the active
subwoofer rear panel.
Use the short joint cable to connect the
top GH12 to the bottom GH12 loudspeaker.
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.
GPX wiring
The GPX must be bi-amplified feeding
the speakON B (on the subwoofer
rear panel) with two signals: one for
driving the GH412 array loudspeaker on
terminals 1+ 1–, the other one for driving
the GS218 subwoofer on the speakON B
terminals 2+ 2–.
The GP1812A active system implements
a 4-channel amp module with DSP: a single
GP1812A can drive a GP1812 passive system
in stereo mode.
Once assembled, use the the 2 m
(6.5 ft) long speaker cable to connect one
speakON connector on the GH412 rear
panel to the speakON A connector on the
active subwoofer rear panel.
Use the the 15 m (49 ft) long speaker cable
to connect one SpeakON B connector on
the subwoofer rear panel to the driving unit
(i.e. a GPXA active system).
SpeakON A and speakON B are
connected in parallel in order to make the
signal pass through (see next picture).
By default, the input signal shall be fed
with a pair of cables connected to the XLR
Combo balanced input channels 1 and 2
on the GP18A active loudspeaker rear panel.
If only one cable is used to feed the input
channels 1 or 2, the mono configuration can
be set with ArmoníaPlus.
4 wires multicore cable with NL4
SpeakOn adapters
SpeakON B
SpeakON A
SpeakON B to SpeakON B
ACTIVE
PASSIVE
PASSIVE
ACTIVE

GPXA
ArmoníaPlus
WINDOWS sof twa re
Click to Go
Ethernet switch
or router
Windows PC
GPXA
ArmoníaPlus
PRESET
PRESET
SELECT
PRESET
PRESET
SELECT
Remote Control With ArmoníaPlus
The built-in DSP can be
remote controlled and tuned
with the ArmoníaPlus software
over an Ethernet network.
1. Download ArmoníaPlus
from Powersoft website
and install it on your PC.
2. Launch ArmoníaPlus.
3. Log-in with your ArmoníaPlus account.
4. The first time you launch ArmoníaPlus
you need to download the KGEAR
amplifiers presets form the ArmoníaPlus
marketplace.
7. Click on the Match button in the bottom
toolbar.
5. Insert «KGEAR» in the search field and
add the support to the KGEAR devices
you need.
6. Connect the PC with ArmoníaPlus and
your KGEAR device to the same local
network.
8. Check that the wired network interface
is active an that the Synchronization
mode is ON.
9. Click on the Discovery button.
10.Wait until ArmoníaPlus shows the
device, then drag-and-drop the device
from the right panel to the Workspace
(left panel): the system takes few
seconds to synchronize.
11. In order to access the device properties,
select the pointer in the bottom toolbar
and then double-click on the device in
the Workspace.
12. You can eventually work off-line in
«Design» mode: click on the Add button
in the bottom toolbar.
13. In the top menu bar, click on the button
labeled «Powered Speaker» .
14.In the new window select the Brand /
Family / Model / Application according
to your needs, the click on Add.
15. The device(s) will be added to the
Workspace.
Setting Device Preset
The rear panel features four preset
buttons that can be assigned to custom
device preset.
A device preset includes the entire
configuration of the four output channels
and input equalization.
In order to customize the current device
preset:
A. connect the device to ArmoníaPlus;
B. make your settings;
C. go to the preset windows and click on
the Save button: the current device
configuration will override the previous
settings.
The factory presets are listed below.
#Preset Name
1KGEAR optimized
2Linear response
3Subwoofer boost
4Mid-high boost
Default KGEAR optimized

GPXA GPX
GPXA / GPX
Type
Transducers
Frequency Response
Max SPL 1
Coverage
Amp Module
Output Power
Operating Voltage
Power Consumption
DSP Features
Connectors
Controls
Dimensions (WxLxH)
Weight
Type
Transducers
Frequency Response
Max SPL 1
Coverage
Power Handling
Nominal Impedance
Connectors
Dimensions (WxLxH)
Weight
1025mm
40,4in
10mm
0,4in
600mm
23,6in
14mm
0,5in
440mm
17,3in
M8
M20
285mm
11,2in
600mm
23,6in
1291mm
50,8in
333mm
13,1in
198mm
7,8in
Mechanical Drawings
Technical specifications
Powered Sub + Satellite system
SUB: 2x 18” woofer
TOP: 4x 12” coaxial woofer and 1” compression driver
30 Hz – 20 kHz (-6 dB)
140 dB (peak)
V. 30° | H. 90°
4-channel Class-D
4x 1500 W @ 4 Ω
90-240V AC, 50-60 Hz
500W Rated Load, (1/8 Max Output Power)
Remote control and tuning
Input and Output Delay
Parametric input EQ
Output parametric filters
RJ45 for remote control
2x Combo XLR Input
2x SpeakON Output
1x PowerCon True AC MAINS
Volume potentiometer
Preset selector
Remote control through Powersoft ArmoniaPlus
Software
1035 x 2040 (min) x 600 mm (40,75 x 80,31 x 23,6 in)
116,6kg (257 lb)
1 Maximum SPL is calculated using a signal with crest factor 4
(12dB) measured at 1 m.
Technical specifications
Passive Sub + Satellite system
SUB: 2x 18” woofer
TOP: 4x 12” coaxial woofer and 1” compression driver
30 Hz – 20 kHz (-6 dB)
140 dB (peak)
V. 30° | H. 90°
SUB: 1500W | TOP: 750W
SUB: 4 Ω| TOP: 8 Ω
2x NL4 SpeakON (TOP: 1+, 1– SUB 2+, 2–)
1035 x 2040 (min) x 600 mm (40,75 x 80,31 x 23,6 in)
113,2kg (250 lb)
1 Maximum SPL is calculated using a signal with crest factor 4
(12dB) measured at 1 m.
Technical Specifications