T20
Operation manual
Operation manual T20
CAUTION
WARNING
WARNING
Introduction
Thank you for choosing a high-quality product “MADE IN GERMANY” from TW AUDiO.
The T20 has been finely honed to meet the high expectations of our customers. A slim, compact top measuring 30 cm (11.8“) wide and comprising two 10“ woofers and a 1.4“ mid-high
section, the T20 boasts a symmetrical design that makes it ideal for use both horizontally and
vertically. Within the enclosure, a sophisticated driver array and passive crossover mean the
T20 achieves constant directivity across both planes.
However, its potential is fully realized when oriented horizontally, perhaps for use as a front or
drum-fill. In this configuration, the performance of most two-way enclosures is compromised,
but the T20 remains entirely consistent.
Other applications for the T20 include use as a center channel or in installations (see also our
T20i for fixed installations) where ceiling height is a challenge.
Should a longer, narrower application be required, the standard 90° × 50° degree high range
horn can easily be rotated or changed to a 60° × 40° degree variation - all without the need
for tools and within seconds.
Whether working in full-range, standalone mode, with a subwoofer or in conjunction with
vertical arrays, the T20 has the power to exceed your expectations in every environment.
If you lend your product to another party, inform that party of the safety-related operating procedures and hand over this assembly guide. If you require additional copies of this manual,
you can obtain them free of charge from TW AUDiO or download them from www.twaudio.de
Instructions in this user manual
Strictly adhere to the instructions contained in this operating manual that are marked as
follows:
This symbol in combination with the signal word “Warning” identifies a potentially hazardous
situation. Failure to comply with this safety instruction can lead to serious injury or even death.
This symbol in combination with the signal word “Warning” identifies a potentially hazardous
situation for persons with a pacemaker. Failure to comply with this safety instruction can lead
to serious injury or even death.
This symbol in combination with the signal word “Caution” identifies a potentially hazardous
situation. Failure to comply with this safety instruction can lead to light or moderate injury.
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Operation manual T20
NOTE
TIP
This symbol in combination with the signal word “Note” identifies a potentially hazardous
situation. Failure to comply with this safety instruction can lead to product damage.
This symbol in combination with the signal word “Tip” identifies additional information or
notes that will simplify working with TW AUDiO products on the basis of practical experience.
Notes on the products
Read manual
before use!
Before using the device, carefully read the operating manual and keep it with the T20 loudspeaker.
General information
Operation manual: OM-T20
Version 1.1 en, 06/2019
© by TW AUDiO 2019; all rights reserved.
All information contained in this operating manual was correct to the best of our knowledge
at the time of printing.
Quality warranties or assurance of suitability for a certain type of use based on the technical
specifications, dimensions and weights are not granted by TW AUDiO.
TW AUDiO also shall not assume liability for any secondary damage (property damage and/or
personal injury) nor for the failure to comply with this operating manual!
TW AUDiO reserves the right to update this document based on recent developments.
TW AUDiO GmbH
Osterholzallee 140
71636 Ludwigsburg
Germany
Phone : + 49 (0) 71 41-48 89 89 0
Fax: + 49 (0) 71 41-48 89 89 99
E-Mail: info@twaudio.de
WWW: www.twaudio.de
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Operation manual T20
Content
1. Safety | Intended use ...................................................................................................... 5
2. Overview ........................................................................................................................ 7
2.1 Components ........................................................................................................... 7
2.2 Variants ................................................................................................................... 8
3. Technical specifications ................................................................................................ 10
3.1 Data sheet ............................................................................................................. 10
3.2 Connection diagram .............................................................................................. 10
4. Commissioning ............................................................................................................. 11
4.1 Setup .................................................................................................................... 11
4.2 Rotating and changing the HF horn ....................................................................... 12
4.2.1 Rotating the HF horn ........................................................................................ 12
4.2.2 Changing the HF horn ...................................................................................... 13
4.3 Operation .............................................................................................................. 14
4.4 Connecting the cable ............................................................................................. 14
5. Transport and Storage .................................................................................................. 15
6. CE Conformity Declaration ............................................................................................ 16
7. Disposal ....................................................................................................................... 17
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1. Safety | Intended use
WARNING
WARNING
WARNING
NOTE
NOTE
Please adhere to the following safety instructions to avoid risks when operating loudspeakers.
The T20 loudspeaker was developed for use in professional sound systems. The loudspeaker may only be used by trained and qualified personnel.
Note the operating modes described in this operating manual. Other uses are not permissible.
Damage caused by improper use is not covered by TW AUDiO.
Loudspeakers generate an electromagnetic field. Persons with pacemakers are not permitted to remain in the immediate vicinity of loudspeakers as the electromagnetic fields can
cause pacemakers to malfunction.
When working with heavy loads exceeding 20 kg (44 lbs.), use suitable aids (dollies, hoisting
slings, etc.). Multiple persons may be required depending on the situation.
Operation manual T20
Ensure that the units are in a stable position and are firmly attached. A falling loudspeaker can
result in serious personal injury and property damage.
When using and assembling TW AUDiO loudspeakers, only use materials specified by
TW AUDiO. These tasks must be performed by qualified personnel. Adhere to the applicable
safety regulations.
When setting up loudspeakers, ensure that they are not exposed to the following ambient
conditions:
• direct sunlight
• Humidity
• Jolting
• Dust
Keep away from the immediate vicinity of loudspeakers that are operated at high sound pres
sure levels. These loudspeaker systems are capable of endangering your health. Sound levels
beginning as low as approximately 90 dB SPL can lead to long-term hearing impairment.
Avoid:
• Feedback
• Distorted signals (clipping) and
• Peaks resulting from switching on devices, plugging in devices or unplugging devices during
operation.
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Such signals can lead to loudspeaker overload and ultimately to loudspeaker failure.
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Operation manual T20
WARNING
NOTE
NOTE
Ensure that the loudspeaker is not exposed to permanent thermal overloads. Thermal overloads may cause a fire and result in serious personal injury and property damage.
Note that TW AUDiO does not provide a warranty for damage that can be attributed to this
type of overload and therefore cannot be held liable for any secondary damage.
A permanent magnetic field is present in the immediate vicinity of loudspeakers. Ensure that
objects which react sensitively to magnetic fields are not located in the immediate vicinity of
the loudspeaker. In particular, this applies to magnetic storage media, magnetic stripe cards
such as debit cards and CRT displays. A distance of approximately one meter is sufficient to
avoid damage.
Check loudspeakers and accessory parts regularly for visible wear. This is essential to ensure
continuing fault-free operation. Worn parts should be replaced immediately. Spare parts are
available from TW AUDiO.
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2. Overview
Operation manual T20
2.1 Components
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5
4
3
2
1
Figure 2.1 - Overview
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8
10
11
12
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7
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1. Front grill magnetic holder (4 pieces)
2. Phase plug
3. 10“ cone drivers
4. Exchangeable horn with 1.4“ compression driver
5. Front grill
6. 12 mm multiplex housing – Warnex texture paint surface finish
7. Rigging plate for attaching accessory parts
8. Milling for rubber feet for secure stacking of loudspeakers
9. Ergonomic carrying handles (left and right)
10. Handle (top and bottom)
11. Type label
12. M10 thread socket for affixing accessory parts (8 pieces)
13. Connection panel, top and bottom, each with a SpeakON® socket
14. Rubber feet (4 pieces)
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Operation manual T20
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0
°
60°
2.2 Variants
The T20 loudspeaker is available in a 90° × 50° variant and in a 60° × 40° variant. The specified degree values refer to the horizontal and vertical radiation characteristics of the horn.
Different interchangeable horn cones can be installed for this purpose. The variant of the
T20 loudspeaker can be identified on the outside of the horn cone (see figure 2.2.1).
50°
90°
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0
°
90°
Figure 2.2.1 - Variants of the T20 horn cone
40°
60°
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Operation manual T20
TIP
The modular design of the high frequency unit allows a quick change between the different
characteristics of dispersion.
The entire high frequency unit consists of the horn cone (1), the horn base (2), the driver plate
and the compression driver.
1
2
Figure 2.2.2 - High frequency unit
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Operation manual T20
3. Technical specifications
3.1 Data sheet
Drivers 2x 10“ LF / 1x 1,4“ HF
Frequency response 60 - 18000 Hz
Power handling (program/Peak) 1000 / 2000 W
Impedance 8 Ω
Coverage angles (h x v) 90° x 50° or 60° x 40°
Max. SPL / 1m 138 dB
Dimensions (h x w x d) 606 x 300 x 400 mm [23,9 x 11,8 x 15,7 in]
Weight 24,3 kg [54 lbs]
Surface Warnex textured paint
3.2 Connection diagram
+
-
PIN 1+
PIN 1-
PIN 2+
PIN 2-
parallel
PIN 1+
PIN 1-
PIN 2+
PIN 2-
8 OHM
Passive
X-over
... kHz
+
-
+
-
Figure 3.2 - Connection diagram
HF 1,4"
LF 10"
LF 10"
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NOTE
WARNING
4. Commissioning
WARNING
WARNING
4.1 Setup
The T20 loudspeaker is designed for standing or hanging, vertical and horizontal operation.
TW AUDiO provides a wide range of accessories to securely attach the loudspeaker.
Make sure that all system structures are located on a firm, level surface and that the surface
can bear the total weight!
Make sure the speakers are securely fastened to prevent personal injury and property damage.
Secure stacked loudspeakers properly so that they can be tipped by 10° in any direction
without toppling.
Operation manual T20
TW AUDiO recommends using only the accessories specified by TW AUDiO for securing and
mounting loudspeakers.
Please note that when operating the T20 loudspeaker without front grill, the HF horn must
additionally be secured against falling out! (Sticking)
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Operation manual T20
WARNING
CAUTION
4.2 Rotating and changing the HF horn
By default, the HF horn of the T20 loudspeaker is oriented so that the horizontal beam angle is
90° and the vertical beam angle is 50°. In some situations it may be advantageous to change
the emission characteristics in the HF range. You can replace the standard high frequency
horn of the T20 loudspeaker with an optional 60° x 40° version. Proceed as follows:
4.2.1 Rotating the HF horn
1. Place the T20 loudspeaker on its back, with the speaker grill facing up. Make sure to
place the speaker on a clean, non-slippery surface.
2. Pull the front grill away from the loudspeaker using the lateral notches. The frontgrill is
secured with a magnetic holder for tool-free assembly. Secure the speaker against lifting
and slipping if necessary with a second person.
3. Pull the horn with the compression driver up and out of the speaker cabinet.
4. Turn the horn funnel 90°.
5. Insert the twisted horn funnel into the horn foot. To do this, press the horn funnel until it
snaps back into the horn foot with the click mechanism. Then check the tightness of the
horn funnel in the horn foot.
6. Lay the front grill flush on one side on the enclosure. Let the other side of the frontgrill slowly
into the recess. Due to the strong holding force of the magnets, there is a danger of crush
injuries.
Please note that when operating the T20 loudspeaker without front grill, the HF horn must
additionally be secured against falling out! (Sticking)
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Operation manual T20
WARNING
CAUTION
4.2.2 Changing the HF horn
1. Place the T20 loudspeaker on its back, with the speaker grill facing up. Make sure to
place the speaker on a clean, non-slippery surface.
2. On the lateral notches, pull the front grill away from the loudspeaker. The front grill secured
with a magnetic holder for tool-free assembly. Secure the speaker against lifting and slip
ping if necessary with a second person.
3. Pull the horn with the compression driver up and out of the speaker cabinet.
4. Insert the horn funnel to be changed into the horn foot. To do this, press the horn funnel
until it snaps back into the horn foot with the click mechanism. Then check the tightness
of the horn funnel in the horn foot.
5. Lay the front grill flush on one side on the enclosure. Slowly engage the other side of the
front grill in the recess. There is a danger of crush injuries due to the strongholding force of
the magnets.
-
Please note that when operating the T20 loudspeaker without front grill, the HF horn must
additionally be secured against falling out! (Sticking)
Figure 4.2.2 - changing the HF horn
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Operation manual T20
NOTE
NOTE
NOTE
4.3 Operation
Operation of the T20 loudspeaker requires a DSP-Controller. For this purpose, only presets
developed by TW AUDiO are recommended. The TW AUDiO system racks are ideally suited
for this purpose.
Before connecting the loudspeaker to the amplifier, ensure that the right preset has been
loaded.
Using the wrong preset or a preset not provided by TW AUDiO preset can destroy the speaker.
Make sure that the amplifier’s specifications meet the requirements. Using an amplifier that
doesn’t meet the specifications can destroy the loudspeaker.
Please note the technical data in section 3.1 on page 10.
4.4 Connecting the cable
To create a cable connection with an amplifier rack from TW AUDiO, proceed as follows.
Ensure that the cable cross sectional area is sufficient (at least 1.5 mm²) to avoid power losses.
TW AUDiO recommends using the loudspeaker cables available from TW AUDiO.
When connecting the cables to the loudspeaker, ensure that polarity (+/-) and pin assignment
(1/2) are correct. Incorrect connection can lead to a significant change in the loudspeaker’s
sound characteristics and may damage the driver.
The pin connections of the T20 loudspeaker can be found in section 3.2 (“Connection dia
gram”) on page 10.
The internal wiring of the T20 loudspeaker allows for parallel connection of multiple loudspe
aker units.
Please note that parallel connections will decrease the total impedance of your loudspeaker
configuration.
The total impedance and the resulting power of the speaker configuration must match the
output power of the amplifier.
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5. Transport and Storage
NOTE
Due to the T20 loudspeaker weighing over 20 kg [44 lbs.], two persons are required to handle
and transport the unit.
To enable a single person to transport two T20 loudspeakers, TW AUDiO recommends using
the CaseT20.
When transporting and storing the unit, it is important to ensure that the surface and front
grill of the loudspeaker are not damaged. Moisture can penetrate through exposed wood
surfaces and cause the wood to swell. A bent or broken front grill will no longer adequately
protect the sensitive speaker membranes.
In addition, appreciable dust deposits may prevent the loudspeaker membrane from working
properly. For this reason, the loudspeakers should be transported and stored in a safe, careful, dry and largely dust-free manner.
The following accessory parts for transport and storage are available from TW AUDiO:
Operation manual T20
• CaseT20 (flightcase for two T20)
• CoverT20 (protective cover)
The original packaging is not suited for permanent storing and transporting.
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Operation manual T20
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6. CE Conformity Declaration
Copy and translation of the original CE Conformity Declaration:
We hereby declare that the below-referenced components by virtue of their design and con
struction, and in the configuration placed on the market by us, satisfy the safety and health
requirements of the applicable EC directives. This declaration becomes invalid in case of modi
fications that have not been approved by us.
This declaration applies to the following components
• T20-60
• T20-90
as well as all model variants based on these, provided that they correspond to the original
factory models and have not been technically modified in any way.
Applicable directives:
• 2001/95/EG
• 2011/65/EU
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Applicable national standards and technical specifications:
• DIN EN 18 800
• DIN EN ISO 12 100
• DGUV Vorschrift 17 und 18
• EN 50581: 2013-02
Ludwigburg, Germany, January 1st, 2017
Tobias Wüstner
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7. Disposal
Operation manual T20
It is prohibited to dispose of used electrical equipment with household refuse.
All TW AUDiO GmbH products are so-called B2B-products. This means that they are sold by
a commercial business to a commercial business. TW AUDiO products that bear the trash
can symbol shown here may only be disposed of by TW AUDiO.
The loudspeaker owner is legally responsible for proper disposal of used devices that do not
bear this symbol. This pertains to all products delivered prior to March 29, 2010. Nevertheless,
TW AUDiO will also be happy to assist you in this case.
If you have any question regarding the disposal of used devices, please contact us under the
following telephone number:
+49 (0) 71 41 - 48 89 89 0
Thus, TW AUDiO is in strict compliance with the Waste Electrical and Electronic Equipment
Directive (2012/19/EU) for the protection of our environment.
TW AUDiO is registered under the following WEEE-reg.-no. with the German National Register
EAR as a B2B-manufacturer and distributor of electrical devices:
DE54488702
In countries outside of the European Union, comply with local regulations.
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Operation manual T20
TW AUDiO GmbH
Osterholzallee 140
71636 Ludwigsburg
Germany
Phone : + 49 (0) 71 41-48 89 89 0
Fax: + 49 (0) 71 41-48 89 89 99
E-Mail: info@twaudio.de
WWW: www.twaudio.de
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