KS TA 2D User manual
TA 2D
2 CHANNEL POWERAMP
THE ULTIMATE SUBWOOFER TOOL
USER MANUAL
TA 2D |2 CHANNEL POWERAMP
Thank you for purchasing a professional KS AUDIO
product. Please carefully follow the instructions in
this manual to ensure long, trouble-free use of your
equipment.
TA2D|2CHANNELPOWERAMP
TA2D|OPERATINGINSTRUCTIONS1|Page
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions
8. Do not install near any heat sources such as radiators, heat registers, stoves etc. which
produces heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit.
11. Make sure the power cord remains readily accessible at all times.
12. Only use attachments/accessories specified by the manufacturer.
13. Unplug device during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the device has
been damaged in any way, such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into it, it has been exposed to rain or moisture, does not operate
normally, or has been dropped.
15. It is in your responsibility to ensure that our products comply to regional regulations and
standards
To prevent electrical shock, do not
remove top or bottom covers. No
User serviceable parts inside.
Refer servicing to qualified service
personnel.
SHOCK HAZARD
DO NOT OPEN!
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CONTENTS
PROLOGUE ........................................................................................................................ 3
FRONT & REAR PANELS .................................................................................................... 4
QUICKSTART ..................................................................................................................... 5
OPERATION....................................................................................................................... 6
A
UDIO
C
ONNECTORS
–
L
INE
I
N
/
OUT
.............................................................................................6
P
OWER
-O
UTPUTS
/SPEAKON.......................................................................................................7
O
UTPUT
M
UTE
S
WITCHES
...............................................................................................................8
A
UDIO
L
INE
T
RANSFORMER
............................................................................................................8
P
OWER
S
UPPLY
................................................................................................................................8
C
OOLING
...........................................................................................................................................8
P
ROTECTION
.....................................................................................................................................8
DANTE
OPTION
...............................................................................................................................9
KS
R
EMOTE
C
ONTROL
.....................................................................................................................9
DISPLAY
.............................................................................................................................................9
CONTROLS
.........................................................................................................................................9
C
HANGING VALUES
..........................................................................................................................9
MENU
C
ONFIGURATION
O
VERVIEW
........................................................................................... 10
DIMENSIONS................................................................................................................... 11
SPECIFICATIONS............................................................................................................. 12
C
LEANING OF
A
MPLIFIER
.............................................................................................................. 13
T
RANSPORTATION
......................................................................................................................... 13
L
IMITED
W
ARRANTY
..................................................................................................................... 14
EC
DECLARATION OF CONFORMITY
............................................................................................. 15
A
PPROPIATE USE OF YOUR EQUIPMENT
....................................................................................... 16
APPENDIX ....................................................................................................................... 17
DSP................................................................................................................................................ 17
E
QUALIZATION
.............................................................................................................................. 17
S
PECIAL
H
IGHLIGHTS FOR THE
S
IGNAL
P
ROCESSING
................................................................. 17
C
ROSSOVER
................................................................................................................................... 17
NOTES.............................................................................................................................. 19
CONTACT......................................................................................................................... 19
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PROLOGUE
Thank you very much for your confidence in our product line-up and purchasing professional KS
AUDIO sound reinforcement tools !
The TA 2D is a 2,000 watt per channel at 4 ohms, 2 channel amplifier with MOSFET technology. This
manual should help you to easily use this product.
Please read this manual carefully and do not hesitate contacting KS AUDIO headquarter or your
local distributor having further questions depending the utilization of your product!
CONTACT
KS BESCHALLUNGSTECHNIK GMBH
WESTENDSTRASSE 1
D - 67310 HETTENLEIDELHEIM
fon +49 6351 12744-0
fax +49 6351 12744-25
www.ks-audio.de
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FRONT & REAR PANELS
Note: Please check when opening the package that there is no obvious damage
due to shipment, which could be harmful to the product or the operator.
The TA 2D is a 2,000 watt per channel at 4 ohms, 2 channel amplifier with MOSFET technology.
1. standby switch with LED
2. mute switches channel 1 & 2
3. mute switch LED´s 1 & 2 (red = mute)
4. encoder knob
5. line/direction knobs /enter /escape
6. ventilation grill screws
7. ventilation foam filter
8. speakON output connectors (1 & 2)
9. XLR analog & AES/EBU input/link out connectors
10. ethernet ports
11. power switch
12. heat sink ventilation
13. USB Port for firmware updates
14. fuse T16AL/250V
15. powerCON Connector AC power in
2
1
5
4
6
7
9
8
14 15
3
12
11
10
13
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QUICKSTART
This QuickStart Guide is intended to help you get started using the amplifier effectively. For detailed
reference information, refer to subsequent sections of this documentation.
Please check for any damage that may have occurred during shipping, when
you open the packaging!
Needed components:
1. TA 2D
2. Powercord (powerCON cable included)
1. Make sure that the amplifier is switched off. (11)
2. Connect the XLR Signal cable (9)
3. Connect the speakon cable (8)
4. If needed, connect ethercon cable for remote control (10)
5. Connect the AC power cable to the powerCON connector (15)
We recommend to not using any other connectors than original Neutrik® products.
The TA 2D is a 2 channel power amplifier with a built-in digital controller module.
When selecting a new program, both the inputs and the outputs are appropriately configured in
the correct set up.
While being used in the wide application field of sound and speech in highest performance and
quality in all sizes of venues, this amplifier can be used as well for recording studios or commercial/
industrial applications.
Please check when opening the packaging, that there are no obvious damages due to
transportation, which could do harm to the product or the operator.
Generally the TA 2D comes already equipped with subwoofer programs. In any event please cross-
check and make sure the program loaded is the one you need for the speaker configuration you
want to run it with.
Please connect the input signal and the speaker outputs on the backside of the amplifier, while the
amp is not yet switched on. Please make sure you are aware of the explanation as listed for the
digital controller program. The power chord is a PowerCon connector cable with a wide range
automatic power switching mode module operating between 100 volt and 250 volt. Please
connect the power chord only to power outlets which are surge protected.
Once you have double checked all connecting cables, please adjust the volume of the input signal
to low and activate the MAINS switch (11) to its right position. After a few seconds the display in
the front part of the amplifier will confirm the ready status of the power amp.
If you do not want to use the power amp for a relative short time period, you can deactivate the
amp by its STAND BY function. (1)
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OPERATION
KSAUDIOrecommendsusingKSAUDIOSYSTEM‐AMPSwithKSAUDIOSYSTEM‐
LOUDSPEAKERSonly!Ifnot,itmaydamagepartsofequipment.
AUDIO CONNECTORS – LINE IN/OUT
All line/audio input and output connections are a balanced electronic type
conforming to the XLR international standard, nominal 20 kOhm for matching
to a typical 50 ohm impedance line output (grounding is on pin #1). For very
long cable run installations, a transformer-balanced output is preferable to
avoid ground differentials and 50 Hz hum loops over mixed type cable runs.
The impedance is 2 x 10kOhm and is discreet (independent for pin 2 and 3).
Multiple devices can share the same input signal by using the male-female
sockets as a daisy chained audio link. A total of only 1 dB of signal loss on the
input signal is seen when up to 20 devices are sharing the same input signal.
Digital AES/EBU lines should be run with 110 Ohm cable impedance. You can
daisy chain as many products you wish, as the XLR male outputs feature an active line transmitter.
KS AUDIO recommends employing "balanced input connections”.
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POWER-OUTPUTS /SPEAKON
There are 2 Neutrik®-speakON speaker level output connectors.
The handling of the signal, like equalization, crossover and
corrections of the transient attitudes of the components, are taking
place entirely in the integrated digital FIR controller. KS AUDIO is
offering numerous programs assuring best results no matter which
driver configuration has to be handled. All programs feature the
automatic adjustment and configuration of the output channel and
output signal which includes the limiting of the power been
supplied to the speakers.
The signal processing is entirely done in the digital domain. The digital connection is an AES3 port.
The amplifier and inputs accept analog sources as well. Highest end 27 bit Sigma-Delta- converters
in gain stacking along with a 64 times oversampling and a A-rated signal to noise ratio of >110dB
handle the conversion from analog into digital. The digital signals are operated by a floating point
DSP. The parameters which you can adjust from an
external control such as Delay and Room Equalization have direct access to the floating point level
of the sound processing and eliminates mistakes in scaling at this point.
KS recommends the use of 4x2,52cable for all speaker to amplifier
connections for optimal performance.
Warning – be certain that all speaker cables are wired identically at each end.
Two amplifiers being bridged together can create fatal damage to the
drivers. We recommend to not using any other connectors than original
Neutrik® products.
* Inputs and outputs can be freely assigned via Controller, so input and
output channels may vary depending on your programming.
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OUTPUT MUTE SWITCHES
A very practical feature when running larger sound systems are the 2
mute switches - one per channel – on the front panel of the power
amplifier. The red LED indicates the MUTE is ON or activated. Each
amplifier output can be isolated. There is also a green "signal present
LED" that indicates any audio source above - 30dB.
AUDIO LINE TRANSFORMER
If you run very long line feeds and especially when using different
power circuits, one should have a power transformer balancing to avoid ground hums. This will
avoid as well electromagnetic problems caused by engines or light fixtures and dimmers. The best
results are usually achieved by leaving the signal line one sided ground free, which means the
protection is disconnected from Pin 1. Even unbalanced cables can be connected in the same way
by having the power balanced side only at Pin2 and 3. The digital input has always a transformer
built-in.
POWER SUPPLY
The KS AUDIO TA 2D power amp uses a state-of-the-art, heavy duty and wide-range switch mode
design, with Power-Factor-Correction (PFC) built in. This power supply will accept any AC input
from 100–240V, 50/60Hz. It is connected via a Blue Neutrik®-powerCON AC connector with
protective leader.
As the power amplifier unit is properly grounded, please ensure, for your own safety, that the
power circuit you are plugging into is properly grounded as well. KS AUDIO amplifiers are very
efficient, therefore, the demand for electricity is quite low. Please Note: Be sure that the actual
current draw for all speakers on the supply circuit does not exceed the maximum fuse rating on
each amplifier. After switching the amplifier on with the MAINS switch, a soft-start is activated first.
This is to protect the system and all the components involved.
Once the electronic protection circuits have confirmed that the system is running under normal
conditions, the outputs are activated and the amplifier is ready to operate.
A second wide range and heavy duty switch mode power supply, with PFC, is used to
independently supply the controller electronics along with the low voltage cooling fans and, the
stand-by ON/OFF system, via the KS remote digital controller system.
COOLING
In the production of high output, high levels of heat are also generated as a by-product at the
amplifier, which could damage the semiconductors. The reduction of these high temperatures is
done with the installation of 2 independent operating cooling fans, controlled in their speed /
efficiency by the heat. The air is socked in from the front of the power amplifier and passed through
to the back while passing the cooling fans and the power transformer and actively cool these units.
PROTECTION
In standard operating mode the controller limits the signals to the drivers. When starting the power
amp the delay of an 80A relais is protecting the drivers. If the dc voltage is changed to critical level
a special protection circuit disconnects the speakers from the amplifier. The same protection takes
place if electrical shortage or low impedance occurs. As soon the reason for the disturbance
disappears the circuit goes back to its full operation. If the internal heat increases above 85 C ( F ), a
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protection is activated to deactivate the power amps as long as it takes for the cooling fans to cool
down the temperature to the accepted maximum level. While this protection is activated an
information appears in the digital display pointing out the problem.
DANTE OPTION
The TA 2D officially speaks DANTE. The optional DANTE card enables uncompressed transmission
of low-latency digital audio over long distances and to multiple locations. Adding a Dante option
card to your KS product makes your audio routing even easier and more convenient, perfect for
delivering audio in excellent quality.
KS REMOTE CONTROL
Via an Ethernet 1GBit connection, user-specific settings
can be made from PC and stored in a preset memory.
Three fully parametric band filters, low and high
shelving, level, delay, limit and additional monitoring
of signal and temperature are available. The remote
control software KS REMOTE allows the compilation of
arbitrary setups from different KS components, even
with different connections to the host computer. A
detailed description can be found within the
corresponding manual.
DISPLAY
Text and graphics are with a high-contrast colored
800x600 pixels display. The brightness is adjustable - from brilliant bright to absolutely not
disturbing.
CONTROLS
The TA 2D is operated via a rotary pulse transmitter with short-stroke switches as well as 4
directional and 2 input keys. The menu navigation in the display is intuitive and leads immediately
to an applicable Result. Apart from the key operation, an identical user interface can be used with
each Browser can be achieved by selecting the devices IP. A remote control is therefore without
additional hardware or software installation possible.
CHANGING VALUES
After turning on your amplifier, the TA 2D display will show the KS logo for some seconds. Then
you will see the status window. For a moment you can see which KS loudspeaker and in which
operating mode the TA 2D is configured. Also the most important operating conditions (for
example red crosses, because you pressed the mute buttons, are displayed here. The enter key will
take you to the operating menu. Pressing the right arrow key takes you to the config menu. Arrow
down and enter key now allows you to select the operating mode for channels 1 and 2. You
confirm your choice with Yes.
With the esc key you are leaving the config menu and you can change it with the Right arrow key in
the menu for channel 1 / 2. Arrow key down and enter key now allows you to select your
loudspeaker. You confirm your choice with Yes again. If you are now still in the menu item Input in
the same way your input then your system is already functional. An existing Input signal is
indicated by the green LEDs on the Keys that you can now share.
The overview on the following page shows you the possibilities of the configuration.
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MENU CONFIGURATION OVERVIEW
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DIMENSIONS
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SPECIFICATIONS
TA 2D (integrated controller module)
number of channels 2
frequency response + / -1dB (without
controlling) 5 – 50,000Hz
output power per channel 4000W peak at 4 Ohms
output impedance min. 2 ohms per channel
power supply switch mode power supply with PFC
mains voltage powercon input (100/250VAC)
amplification mode Class H MOSFET, 3 rails supply
input connectors 2x XLR3 in, 2x XLR3 out
output connectors 2x speakon NL4
cooling 2 fans, speed controlled
case stainless steel
finish charcoal black
dimensions (height x width x depth) 2U / 19“ / 350mm(13.8“)
weight (without options) 12 kg / 26 lbs
options DANTE
features AES/EBU, Ethernet
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CLEANING OF AMPLIFIER
The fitted mesh filters (foam) for the cooling system should be regularly cleaned to maximize the
air flow into the unit.
TRANSPORTATION
KS products are tools for daily professional use and are correspondingly robustly manufactured.
You should, however, be aware of these aspects of note:
As with all types of electronic devices, condensation and moisture must be avoided i.e. when the
speaker comes from a cold and humid truck and is brought into a warm venue, give the system as
much time as possible to heat up to venue temperature before powering on.
Of course, direct exposure to liquids is never safe and should be prevented at all times. The
vibrations of a transport vehicle are safe - all components and cabinetry are well assembled,
secured with screwed or bolted parts for extra strength where necessary.
It has however been shown that train or airplane transport without further packaging creates un-
due stress on KS products. We recommend for such situations shock resistant flight cases.
Significant contamination by dust, etc. is dangerous for Electronic assemblies as it may cause a
short circuit. It is therefore advisable, that the devices are periodically opened, and cleaned out
with compressed air.
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LIMITED WARRANTY
Without any exception, KS AUDIO professional products will be sent out in strict accordance with
long-time final inspection and under permanent quality control during manufacturing process by
dedicated specialists.
When receiving freight, please check your delivery on shipping damages, out – and inside
immediately. Product defects have to be reported to the shipping company immediately after
detection and to KS AUDIO headquarter within eight days.
24 month limited warranty of manufacturer to the exclusion of all further claims and the following
obligations:
Exchange or repair of defect devices whenever not subject of external damage, vandalism
or misuse or by an act of god.
Exchange of entire product if repair deadline may exceed four weeks respectively fails
second time.
Exclusion of manufacturer’s warranty whenever devices opened respectively customized
by third parties non factory-authorized
The warranty card shipped within the package is subject of all repairs done in KS AUDIO
headquarter or factory-authorized service points.
Freight costs generally to be paid by customer
Hettenleidelheim 11/14/2016
(Dieter Klein, CEO / KS Beschallungstechnik GmbH)
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EC DECLARATION OF CONFORMITY
Within the meaning of low voltage directive (LVD) 2006/95/EC furthermore electromagnetic
compatibility directive (EMC) 2014/30/EU
We hereby declare that the equipment designated below is designed and built in the version sold
by us in such a way as to comply with the relevant fundamental safety and health criteria of the
applicable EC respectively EU directives. This declaration shall cease to be valid if alternations are
made to the equipment without our prior agreement.
This declaration covers:
order code 50.020 – KS AUDIO TA 2D - in ascending order from serial no. 1001
Relevant EC respectively EU directives:
low voltage directive (LVD) 2006/95/EC furthermore electromagnetic compatibility directive (EMC)
2014/30/EU
Hettenleidelheim 11/14/2016
(Dieter Klein, CEO / KS Beschallungstechnik GmbH)
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APPROPIATE USE OF YOUR EQUIPMENT
Although KS AUDIO professional products represent heavy duty tools
for daily use, please refer to the following information of operating
manual under all circumstances.
Please avoid water condensation at any electronic device under all circumstances !
Whenever system carried e.g. from cold truck to warm and humid event location, always
allow equipment to acclimate for a while.
For rail cargo use professional shock-absorbing flight-cases
To protect your equipment, for regular cargo e.g. by truck, this is not necessary.
For cleaning your equipment, please follow instructions attached to page 9 of this manual
Verify the electrical conformity and compatibility of the mains supply.
Only connect the product to an AC power outlet rated 100-240 V, 50-60 Hz, with the
following current values:
100-120 V: 30 A
200-240 V: 16 A
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APPENDIX
DSP
All KS AUDIO products have balanced inputs and outputs.
In the controller card, all of the signal processing is entirely done in the digital domain. The digital
connection is AES 3. High-end 24/27 bit Sigma-Delta A/D converters are gain stacked along with a
64 times over sampling and a A-rated signal to noise ratio of >110dB to handle the A/D function.
The TA 2D accepts analog input sources as well.
EQUALIZATION
The most important function of the controller is to assure a flat frequency response and positive
phase relationship. In the course of preparing those programs every sound configuration had to
undergo numerous test runs in order to take measurements to evaluate and to determine the
many different conditions and solutions possible. This results in the best programs with optimal
results for each driver. KS AUDIO developed a FIR® (Finite Impulse Response) technology to create
the inverse frequency response and operate this via an onboard DSP engine comparing input
signals against programs pertinent to the cabinet and its components, in order to execute a
complex digital filtering process. This results in the optimal equalizations for each driver/box and
system.
Additional to all this, the sound engineer is free to adjust the sound for a certain application and
venue by adjusting the program parameters such as “Shelving” and “Low Cut” filters. Please check
the program parameters for full details.
SPECIAL HIGHLIGHTS FOR THE SIGNAL PROCESSING
A short impulse in an analog equalizer is extended in the time domain and creates in the output
stage of the equalizer a post-oscillation of the impulse response. On top of all this, the mass of the
driver creates an additional post-oscillation initiated by the same impulse. Combined together
these changes in signal-motion timing at the output stage leaves little in common with the original
signal. KS AUDIO developed the FIR (Finite Impulse Response) filtering technology, called FIRTEC ®.
This technology removes any of the delay time distortion and handles the time domain as well as
the frequency response.
The correction of the input signal is done immediately in the time domain, through a mathematical
convolution of the input signal and the impulse response of the digital equalization filters.
Conversely, traditional analog filter / equalizer technology tries to correct the frequency response
of the signal through various filter elements which degrades the original impulse signal response.
The new digital FIRTEC ® technology equalizes the signal immediately and corrects it to exactly
match the original impulse. This is a physical equalization of the frequency response in volume and
phase.
CROSSOVER
In reality, the analog filtering process tries to correct the frequency response of the audio signal
through various filter elements and as a result, degrades the quality of the signal’s impulse
response. The FIRTEC ® technology digitally equalizes the input signal immediately and corrects the
actual impulse of the signal. This is a physical equalization of the frequency response in volume
and phase. The cross over is optimized to be linear for frequency and phase (Bessel Filter). In analog
systems, phase shifts exist in between crossover points which can produce a result of near
cancellation of the sound pressure between systems when running various speakers in parallel (2-
way / 3-way systems).
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The KS AUDIO FIRTEC ® technology is based on a combined Bessel filter and Differential filter
process to yield superior results. This means the high frequency response is the result between the
low pass filter and the input signal. In consequence the result is an optimal addition between the
high and the low frequency cross over points. Instead of a phase shift as found in an analog cross-
over, in the KS AUDIO digital process, the time domain of the low pass signal is only considered,
and the rest of the process follows this.
Importantly, the geometrical offset between the drivers is compensated for and the resulting
output is sample accurate to the input in the time domain. To assure the best possible equalization
of the entire system the FIR filters work with the entire signal path not just the individual frequency
range: the critical cross-over between high and mid frequency drivers are precisely corrected.
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NOTES
CONTACT
KS BESCHALLUNGSTECHNIK GMBH
WESTENDSTRASSE 1
D - 67310 HETTENLEIDELHEIM
fon +49 6351 12744-0
fax +49 6351 12744-25
www.ks-audio.de
Model
SerialNumber
PurchaseDate
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