DAPAudio LT-218BA User manual

LT-218BA
ORDERCODE D3477

Congratulations!
You have bought a great, innovative product from DAP Audio.
The DAP Audio LT-218BA brings excitement to any venue. Whether you want simple plug-&-play action or
a sophisticated show, this product provides the effect you need.
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We design and manufacture professional audio equipment for the entertainment industry.
New products are being launched regularly. We work hard to keep you, our customer, satisfied.
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You can get some of the best quality, best priced products on the market from DAP Audio.
So next time, turn to DAP Audio for more great audio equipment.
Always get the best -- with DAP Audio !
Thank you!

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DAP Audio
DAP Audio LT-218BA™Product Guide
Warning.........................................................................................................................................................................
Unpacking Instructions...........................................................................................................................................
Safety-instructions...................................................................................................................................................
Operating Determinations.....................................................................................................................................
Return Procedure....................................................................................................................................................
Claims.......................................................................................................................................................................
Description..…..............................................................................……….…………………………………......................
Features………………………………………………………………………………….………………….….....................
Overview ..…………………………………………………………………………………....……....................................
Control Panel.…………………………………………………………………………………….……..............................
Marani Dig Amp Software......................................……….……………………..…………………………......................
Operation.................................................................……….……………………..………………………….....................
Connection Cables..............................….......................................………..………….…….………….….....................
Maintenance………..............................….......................................………..………….…….………….…....................
Replacing the Fuse........................................................................…………………….………………….................
Troubleshooting………..............................…................................………..………….…….………….….......................
Product Specifications.................................................................……………….…….………………….......................

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WARNING
Unpacking Instructions
Immediately upon receiving this product, carefully unpack the carton and check the contents to ensure
that all parts are present, and have been received in good condition. Notify the dealer immediately and
retain packing material for inspection if any parts appear damaged from shipping or the carton itself
shows signs of mishandling. Save the carton and all packing materials. In the event that a fixture must be
returned to the factory, it is important that the fixture be returned in the original factory box and packing.
Your shipment includes:
• DAP LT-218BA
• IEC cable
• User manual
SAFETY INSTRUCTIONS
Every person involved with the installation, operation and maintenance of this system has to:
-be qualified
-follow the instructions of this manual
Before you initial start-up, please make sure that there is no damage caused by transportation. Should
there be any, consult your dealer and do not use the system.
To maintain perfect condition and to ensure a safe operation, it is absolutely necessary for the user to
follow the safety instructions and warning notes written in this manual.
Please consider that damages caused by manual modifications to the system are not subject to
warranty.
This system contains no user-serviceable parts. Refer servicing to qualified technicians only.
IMPORTANT:
The manufacturer will not accept liability for any resulting damages caused by the non-
observance of this manual or any unauthorized modification to the system.
Never let the power-cord come into contact with other cables! Handle the power-cord and all
connections with the mains with particular caution!
Never remove warning or informative labels from the unit.
Never use anything to cover the ground contact.
Never leave any cables lying around.
Do not insert objects into air vents.
FOR YOUR OWN SAFETY, PLEASE READ THIS USER MANUAL CAREFULLY
BEFORE YOUR INITIAL START-UP!
CAUTION!
Keep this system away from rain and moisture!
CAUTION! Be careful with your operations.
With a dangerous voltage you can suffer
a dangerous electric shock when touching the wires!

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Do not connect this system to a dimmerpack.
Do not switch the system on and off in short intervals, as this would reduce the system’s life.
Do not open the device and do not modify the device.
Do not drive the inputs with a signal level bigger, than required to drive the equipment to full
output.
Only use system indoor, avoid contact with water or other liquids.
Avoid flames and do not put close to flammable liquids or gases.
Always disconnect power from the mains, when system is not used. Only handle the power-cord
by the plug. Never pull out the plug by tugging the power-cord.
Always operate the unit with the AC ground wire connected to the electrical system ground.
Make sure you don’t use the wrong kind of cables or defective cables.
Make sure that the signals from the mixer are balanced, otherwise hum could be created.
Make sure that the available voltage is not higher than stated on the rear panel.
Make sure that the power-cord is never crimped or damaged. Check the system and the power-
cord from time to time.
Please turn off the power switch, when changing the power cord or signal cable.
Extreme frequency boosts in connection with a high input signal level may lead to overdriving
your equipment. Should this occur, it is necessary to reduce the input signal level by using the
INPUT control.
To emphasize a frequency range, you don’t necessarily have to move its respective control
upward; try lowering surrounding frequency ranges instead. This way, you avoid causing the next
piece of equipment in your sound path to overdrive. You also preserve valuable dynamic reserve
(“headroom”)
Avoid ground loops! Always be sure to connect the power amps and the mixing console to the
same electrical circuit to ensure the same phase!
If system is dropped or struck, disconnect mains power supply immediately. Have a qualified
engineer inspect for safety before operating.
If the system has been exposed to drastic temperature fluctuation (e.g. after transportation), do
not switch it on immediately. The arising condensation water might damage your system. Leave
the system switched off until it has reached room temperature.
If your Dap Audio device fails to work properly, discontinue use immediately. Pack the unit
securely (preferably in the original packing material), and return it to your Dap Audio dealer for
service.
Repairs, servicing and electric connection must be carried out by a qualified technician.
For replacement use fuses of same type and rating only.
WARRANTY: Till one year after date of purchase.
OPERATING DETERMINATIONS
This system is not designed for permanent operation. Consistent operation breaks will ensure that the
system will serve you for a long time without defects.
If this system is operated in any other way, than the one described in this manual, the product may suffer
damages and the warranty becomes void.
Any other operation may lead to dangers like short-circuit, burns, electric shock, etc.
You endanger your own safety and the safety of others!
Improper installation can cause serious damage to people and property !

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Connection with the mains
Connect the device to the mains with the power-plug.
Always pay attention, that the right color cable is connected to the right place.
International
EU (including UK)
From April 2004
North America
Pin
L
Brown
Black
Phase
N
Blue
White
Neutral
Green/Yellow
Green
Protective Earth
Make sure that the device is always connected properly to earth!
Return Procedure
Returned merchandise must be sent prepaid and in the original packing, call tags will not be issued.
Package must be clearly labeled with a Return Authorization Number (RMA number). Products returned
without an RMA number will be refused. Highlite will not accept the returned goods or any responsibility.
Call Highlite 0031-455667723 or mail [e-mail] and request an RMA prior to shipping the fixture.
Be prepared to provide the model number, serial number and a brief description of the cause for the
return. Be sure to properly pack fixture, any shipping damage resulting from inadequate packaging is the
customer’s responsibility. Highlite reserves the right to use its own discretion to repair or replace
product(s). As a suggestion, proper UPS packing or double-boxing is always a safe method to use.
Note: If you are given an RMA number, please include the following information on a piece of paper
inside the box:
1) Your name
2) Your address
3) Your phone number
4) A brief description of the symptoms
Claims
The client has the obligation to check the delivered goods immediately upon delivery for any short-
comings and/or visible defects, or perform this check after our announcement that the goods are at their
disposal. Damage incurred in shipping is the responsibility of the shipper; therefore the damage must be
reported to the carrier upon receipt of merchandise.
It is the customer's responsibility to notify and submit claims with the shipper in the event that a fixture is
damaged due to shipping. Transportation damage has to be reported to us within one day after receipt
of the delivery.
Any return shipment has to be made post-paid at all times. Return shipments must be accompanied with
a letter defining the reason for return shipment. Non-prepaid return shipments will be refused, unless
otherwise agreed in writing.
Complaints against us must be made known in writing or by fax within 10 working days after receipt of the
invoice. After this period complaints will not be handled anymore.
Complaints will only then be considered if the client has so far complied with all parts of the agreement,
regardless of the agreement of which the obligation is resulting.

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Description of the device
The LT active series consists of five models. Each LT speaker is equipped with B&O ICEpower amplifier
modules and a Marani DSP.
The very high damping factor (over 2000) ensures a tight bass sound as well as a good control over the
cone movement.
Most models have built in amplifier modules up to 2000 Watts RMS which is enough to ensure maximum
dynamics as well as a very high sound quality and very low distortion.
The build in DSP has 16 presets which makes it possible to use the LT-series in almost every thinkable
situation.
An optional USB to RS485 interface in combination with the free Marani DigAmp software allows you to
create and store your own optimal settings.
Features
• High performance fullrange enclosure
• 2 high power 18 inch drivers
• Built in Marani DSP
• Bang & Olufsen ICE- power amplifiers
• Strong metal handles
Overview
Fig. 1

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Controlpanel
Fig. 2
1) Display
Shows the current DSP preset number.
2) Input XLR input
The input equipped with 3 pole XLR/ jack combo socket is electronically balanced to accept the
(line) signal from any mixing console.
3) DSP mode control
Allows you to select a DSP preset. The LT-218BA has 16 presets which are divided into 3 groups.
1. 32-80Hz, 32-90Hz, 32-100Hz, 32-125Hz, 32-160Hz.
These presets have standard settings for use with most common active speakers.
2. Floor, Stage, Max Loud, DJ, Deep, Cinema, Live.
These presets are optimized for use with our LT-212A or LT-215A speakers.
3. User 1, User 2, User 3, User 4.
If you own the optional interface and software, the LT-218BA offers you the ability to edit existing
presets or create new presets to meet your own specific requirements.
4) Link XLR output
For linking several LT-series speakers.
5) LED array
Power
Indicates that AC power is connected and the amplifier is turned on.
DSP limit
Indicates that the DSP protection circuitry is limiting the signal, thus preventing digital clipping.
Soft clip
Indicates that the analog soft clipping circuit in the poweramp section is active.
A soft clipping circuit clips short signal peaks in a way that is not sounding unpleasant to your ears.
Although a soft clipping circuit limits your dynamic range, it allows you to operate on higher volume
levels.
Protect
Indicates an electrical or thermal fault condition in the power amp
6) Volume
Use to adjust the input volume level for the LT-218BA.
7) RS-485 Termination (only in older units)
Allows you to switch the RS-485 termination on or off. The last device in a RS-485 setup should always
have a termination resistor connected. If you’re using only one device in a RS-485 setup make sure
that the termination switch is pressed in.
8) RS-485 control sockets
Allows you to control one or more devices from the LT-series using your computer and the included
software. You can connect up to 32 devices.

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9) Fuse Holder
Replace the fuse only with a fuse of same specifications (T8A).
10) Powercon AC power input
This connector is meant for the connection of the supplied main cord. Connect one end of the
power cord to the connector, the other end to the mains, then turn on the power switch (14) to
operate the unit.
Note: Please make sure that the supply voltage matches the operation voltage before connecting
the unit to mains.
11)Powercon AC power link output
You can power up another device as long as the maximum power consumption of the device
connected does not exceed 1500VA.
12)Ground Lift switch
When this button is pressed, it separates the signal ground from the chassis ground, enabling you to
eliminate potential ground loops or low-frequency hum.
13)AC Power Switch
This is the main Power switch. Press to turn the LT-218BA on.
14)Aux High XLR output
For connecting a mid-high range speaker e.g. LT-212A, LT-215A etc.

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Marani Dig Amp software
The LT-series gives you the opportunity to edit the Factory preset programs to your own preferences or
back them up.
Note: You’ll have to buy the optional USB to RS485 interface first (DAP Audio D2071). You can download
the software from our website: http://www.highlite.nl
Editing Window
Fig. 3
Input Gain:
This slider allows you to set the input gain. Range -60db –0dB.
Parametric filters
A five band parametric EQ is available on the Digital Amp DSP Board for equalizing each output
channel. Each of the five parametric filters can be edited in terms of Gain, Center Frequency and
Quality Factor “Q”.
1. The Gain can be set by using the slider which allows you to attenuate/increase the filter's output
ranging from -15dB up to +15dB.
2. The Quality Factor “Q”, can be set by selecting the proper value from the selection field on the bottom
row. Range from 0.40 (wide bell) up to 128 (thin notch).
3. The Center Frequency can be set by “double clicking” on the entry field just beneath the Gain slider.
After double clicking, a window will open allowing you to set all the filter's parameters by sliders. It is
also possible to enter the frequency by clicking the entry field and entering the value using your
computers keyboard.
Lo-Shelving
The Low Shelving field allows the user to adjust the parameters of a Low Shelving filter.
1. filter attenuation/gain, which can be set by the slider and ranging between -12dB up to +6dB
2. Cutting Frequency, click the entry field below the slider and use your computers keyboard to enter the
desired frequency.
3. filter's order (or Bypass), which can be of the first (6dB/Oct) or of the second (12dB/Oct) order.
Hi-Shelving
The High Shelving field allows the user to adjust the parameters of a High Shelving filter.
1. filter attenuation/gain, which can be set by the slider and ranging between -12dB up to+6dB
2. Cutting Frequency, click the entry field below the slider and use your computers keyboard to enter the
desired frequency.
3. filter's order (or Bypass), which can be of the first (6dB/Oct) or of the second (12dB/Oct) order.

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High Pass Filter
The High Pass field allows the user to adjust the parameters of a High Pass filter.
1. Low Cut Frequency, click the entry field below the slider and use your computers keyboard to enter
the desired frequency.
2. filter's order and type (or Bypass), which can range from the first order Butterworth (6dB/Oct), up to the
fourth order Butterworth (24dB/Oct)
Low Pass Filter
The Low Pass field allows the user to adjust the parameters of a Low Pass filter.
1. High Cut Frequency, click the entry field below the slider and use your computers keyboard to enter
the desired frequency.
2. filter's order and type (or Bypass), which can range from the first order Butterworth (6dB/Oct), up to the
fourth order Butterworth (24dB/Oct)
Compressor/limiter
This field allows the user to adjust the parameters of the Compressor/Limiter.
1. Threshold, can be set using the more/less buttons and can range from -29dB up to 0dB (compressor not
active)
2. Compressor Ratio, can be set using the more/less buttons and can range from 16:1 up to 1:1
(compressor not active)
3. Release Time, can be set using the more/less buttons and can range from 0.1Sec up to 8Sec
4. Attack Time, can be set using the more/less buttons and can range from 1ms up to 480ms
The Bypass button, allows the user to bypass the compressor with “one touch”
Volume
This slider allows you to set the Signal output Level after the previous process. This control allows to
attenuate or increase the signal level, ranging from a -6dB attenuation up to a +6dB Gain. The volume
field also has 2 check boxes for output muting (MUTE) and Output Signal phase Selection (180°).
Delay
This field allows you to set the Channel's Output Delay, for speaker alignment purposes. The Delay is
displayed in Time and Meters in the respective windows, and can be set through the more/less button
“ADJ” (for the rough 1ms step, adjustment) and “Fine” (for the fine 21us step, adjustment)
Noise Gate
This field allows the user to set the all parameter of the Noise Gate process.
1. Threshold, can be set using the more/less buttons and can range from -90dB (Noise Gate Not Active)
up to -45dB.
2. Release Time, can be set using the more/less buttons and can range from 0.1Sec up to10Sec.
3. Attack Time, can be set using the more/less buttons and can range from 1ms up to 480ms.
Routing
This field allows you to assign input 1, input 2 or both inputs to a channel.
Channel Load from Pc
This button allows you to load and edit only the currently active channel.
Channel Save to Pc
This button allows to store and save the currently active channel to PC.

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Toolbar Options
Open Folder
The “Open File” folder on the top left of the screen, allows the user to RECALL a previously saved
preset on PC. It is enough to click on the Icon and to recall the desired preset. The preset will be
loaded into the device and the parameters' setting will be displayed in the “DigAmP” window.
Save Folder
The “Save File” folder on the top left of the screen, allows the user to SAVE an edited setting as
preset on PC. It is enough to click on the Icon and to NAME the preset to save, then to chose the
directory in which you want to save it and click enter. The preset will be saved into the PC and it
will be possible to recall it later by using the Open Folder option.
Save Preset to Device
The “Save Preset to Device” on the top of the screen, allows the user to SAVE an edited setting as
preset into the LT-218BA. It is enough to click on the Icon, to chose the location (from 01 to 16)
and to enter a name for the preset you wish to save, then click the “store” button. The preset will
be saved into the device and it will be possible to recall it later by using the “Read Preset from
Device” option.
Read Preset from Device
The “Read Preset from Device” on the top of the screen, allows the user to recall a previously
saved preset from the LT-218BA. It is enough to click on the Icon and to select the desired preset
from the list of 16 presets, click the “Read” button and the preset will be displayed in the
“DigAmP” window.

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Edit Channel Name
The “Edit Channel Name” icon on the top of the screen, allows the user to assign a name to both
the channel editing windows (red and blue labeled), for better identifying them.
Password
Clicking the Password icon opens the Password menu. The password menu allows the user to
protect his presets.
Operation
Installation
Remove all packing materials from the LT-218BA. Check that all foam and plastic padding is removed.
Connect all cables.
Always disconnect from electric mains power supply before cleaning or servicing.
Damages caused by non-observance are not subject to warranty.
Set Up and Operation
Before plugging the unit in, always make sure that the power supply matches the product specification
voltage. Do not attempt to operate a 120V specification product on 240V power, or vice versa.
Do not supply power before all components of the system are set up and connected properly.

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Connection Cables
Take care of your cables, always holding them by the connectors and avoiding knots and twists when
coiling them: This gives the advantage of increasing their life and reliability.
Periodically check your cables. A great number of problems (faulty contacts, ground hum, discharges,
etc.) are caused entirely by using unsuitable or faulty cables.
Headphones Unbalanced mono Balanced mono Insert
Compensation of interference with balanced connections

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Maintenance
The LT-218BA requires almost no maintenance. However, you should keep the unit clean. Disconnect the
mains power supply, and then wipe the cover with a damp cloth. Do not immerse in liquid.
Keep connections clean. Disconnect electric power, and then wipe the audio connections with a damp
cloth. Make sure connections are thoroughly dry before linking equipment or supplying electric power.
Replacing a Fuse
Power surges, short-circuit or inappropriate electrical power supply may cause a fuse to burn out. If the
fuse burns out, the product will not function whatsoever. If this happens, follow the directions below to do
so.
1. Unplug the unit from electric power source.
2. Insert a flat-head screwdriver into a slot in the fuse cover. Gently pry up the fuse cover.
3. Remove the used fuse. If brown or unclear, it is burned out.
4. Insert the replacement fuse into the holder where the old fuse was. Reinsert the fuse cover. Be sure to
use a fuse of the same type and specification. See the product specification label for details.
Troubleshooting
Dap Audio LT-218BA
This troubleshooting guide is meant to help solve simple problems.
If a problem occurs, carry out the steps below in sequence until a solution is found. Once the unit
operates properly, do not carry out following steps.
1. If the device does not operate properly, unplug the device.
2. Check the power from the wall, the fuse, all cables etc.
3. If all of the above appears to be O.K., plug the unit in again.
4. If you are unable to determine the cause of the problem, do not open the device, as this may
Damage the unit and the warranty will become void.
5. Return the device to your Dap Audio dealer.

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Product Specifications
Power supply: 230V 50/60Hz
Fuse: T8A
Woofers: 2x ER-A1576F-B,
Alu Basket 8 Ohm,
100 mm Voice Coil.
Amplifier Module Low 1: B&O ICEpower1000ASP
Amplifier Module Low 2: B&O ICEpower1000ASP
Amplifier Output Low 1: 1000 Watt RMS in 4 Ohm
Amplifier Output Low 2: 1000 Watt RMS in 4 Ohm
Damping factor at 100 Hz: > 2000 in 8 Ohm
Input Sensitivity: 0 dBu
XLR High Out: +6dB (at 0dB input)
DSP: Marani Dig Amp DSP
Freq. Response (-3 dB): 32 –FhHz
Freq. Range (-10 dB): 26 –FhHz
Sensitivity (Full Space): 106 dB / W / m
Max SPL at 1 m (Theoretical): 139 dB
Nominal Dispersion (H x V): 360° x 180°
Dimensions (WxHxD): 650 x 1220 x 650mm
Weight: 81 kg
Design and product specifications are subject to change without prior notice.
Website: www.Dap-audio.info
Email: [e-mail]

2011 Dap Audio.