TW Audio GSP20 User manual

Assembly
Instructions
GSP20

Assembly Instructions GSP20
2
Introduction
The GSP20 ground stack plate is an accessory for the VERA20 loudspeaker.
It is characterized by a subtle look, a remarkable size to weight ratio and ease of use.
Instructions in this setup manual
NOTE
TIP
CAUTION
WARNING
Thank you for choosing a high-quality product “MADE IN GERMANY” from the brand
TW AUDiO.
If you lend your product to another party, inform that party of the safety-related operating pro-
cedures 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
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 “Caution” identifies a potentially hazardous
situation. Failure to comply with this safety instruction can lead to light or moderate injury.
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 TWAUDiO products on the basis of practical experience.
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.
WARNING

Assembly Instructions GSP20
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Notes on the products
Read manual
before use!
Before using the ground stack plate, carefully read the assembly instructions and keep the
instructions in a safe place together with the GSP20 ground stack plate.
General Information
Assembly Guide: OM-GSP20
Version 2.0 d, 11/2022
© by TWAMBO 2022; 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 TWAMBO.
TWAMBO 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!
TWAMBO reserves the right to update this document based on recent developments.
TWAMBO GmbH
Karl-Hofer-Str. 42
14163 Berlin
Germany
Phone : + 49 (0) 71 41-48 89 89 0
Fax: + 49 (0) 71 41-48 89 89 99
E-Mail: [email protected]
WWW: www.twaudio.de

Assembly Instructions GSP20
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Table of contents
1. Safety | Intended use...................................................................................................... 5
2. Overview ........................................................................................................................ 7
2.1 Components ........................................................................................................... 7
3. Technical specifications .................................................................................................. 8
3.1 Data sheet............................................................................................................... 8
4. Commissioning............................................................................................................... 9
4.1 Setup ...................................................................................................................... 9
4.2 Wind load ................................................................................................................ 9
4.3 Pitfalls...................................................................................................................... 9
4.4 Danger of tipping over ........................................................................................... 10
4.5 M20 screw connector............................................................................................ 10
4.6 Ground stack of the VERA20 loudspeaker............................................................. 11
4.7 VERA20 ground stack setup, from the 2nd loudspeaker........................................ 14
4.8 Usage GSP20 on subwoofers as gound stack for VERA20.................................... 18
5. Transport and Storage.................................................................................................. 20
6. CE Declaration of Conformity........................................................................................ 21
7. Disposal ....................................................................................................................... 21

Assembly Instructions GSP20
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1. Safety | Intended use
The GSP20 ground stack plate was developed for use in professional sound systems. The
ground stack plate may only be used by trained and qualified personnel.
Before each installation, check the integrity of the GSP20 ground stack plate and ensure that
all components are in perfect condition.
The scope of delivery includes a specified quick-locking pin and a M20 screw connector. Only
use this components.
WARNING
The GSP20 ground stack plate may only be used with the VERA20 loudspeaker and sub-
woofers.
These assembly instructions describe how to use the GSP20 ground stack plate. Any other
use shall be deemed improper and may result in damage or even injury.
Modifications or alterations to individual parts of the GSP20 ground stack plate are not per-
mitted! Danger to life!
WARNING
During and after each system setup, check that all quick-locking pins are always completely
inserted! All quick-locking pins must always be used!
WARNING
The GSP20 is an accessory designed both for indoor and outdoor use.
CAUTION
The GSP20 ground stack plate may only be used by trained and qualified personnel.
Personnel must check the GSP20 for its full suitability before each use.
WARNING
When visible damage to any part of the GSP20 ground stack plate is detected, it must be
decommissioned immediately.
WARNING
Please adhere to the following safety instructions to avoid risks when using accessories.
Note the operating modes described in this assembly instructions. Other uses are not per-
missible.
Damage caused by improper use is not covered by TWAMBO.

Assembly Instructions GSP20
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WARNING
Before mounting the GSP20 ground stack plate, all attachment points - such as on subwoo-
fers - must be checked for full load capacity and stability.
The GSP20 accessory is specified for a load of not more than eight VERA20 loudspeakers.
This load capacity must never be exceeded!
When working with heavy loads over 20 kg [44,09lbs.], use suitable aids (dollies, hoisting
slings, etc.). Multiple persons may be required depending on the situation.
When moving (mounting, removing, servicing) the GSP20 ground stack plate with
VERA20 loudspeakers and subwoofers, ensure that there is enough room to avoid collisions
with other objects.
When installing the GSP20 ground stack plate, be careful not to pinch or twist the power
cables or other cables of the VERA20 loudspeakers and subwoofers! The respective national
electrotechnical regulations apply.
Every time you install the GSP20 ground stack plate, check all screw connections. Tighten all
loose screws. If this is no longer possible, the screws must be replaced.
WARNING
WARNING
CAUTION
WARNING

Assembly Instructions GSP20
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2. Overview
2.1 Components
1. GSP20 ground stack plate - Surface powder-coated
2. Captive M20 screw connector
3. Captive Quick-locking pin
Figure 2.1 - Overview
12
3

Assembly Instructions GSP20
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3. Technical specifications
3.1 Data sheet
maximum load capacity 8 VERA20
Dimensions (h x w x d) 35 x 550 x 555 mm [1.38 x 21.65 x 21.85in]
Weight 6,2 kg [13.67 lbs.]
Surface Powder-coated
Maximum length of system setup,
without subwoofer 2,40 m [7.87 ft.]

Assembly Instructions GSP20
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4. Commissioning
4.1 Setup
The GSP20 ground stack plate is designed for groundstack operation.
TW AUDiO recommends using only the accessories specified by TWAUDiO for securing and
mounting the ground stack plate.
NOTE
WARNING
WARNING
WARNING
Please note that setting up the system setups always requires two persons!
Make sure that all system structures are located on a firm, level surface and that the surface
can bear the total weight!
WARNING
4.3 Pitfalls
4.2 Wind load
Make sure that no one can trip over your system structures, or over individual components!
This is especially true for all pressure-resistant shims, tripod legs and guy ropes!
WARNING
Make sure that the system structures are not operated over the audience at wind speeds in
excess of 6 bft (22 to 27kn / 39 to 49kph / 24.2 to 30.45mph) and that there are no persons
in the immediate vicinity of the system structure!
Before setting up the system outdoors, consider unexpected wind conditions at the opera-
tion site!
Disassemble your system immediately when wind speeds exceed 8 bft (34 to 40kn / 62 to
74 kph / 38.5 to 46mph) and secure the system components!
Make sure that there are no persons in the immediate vicinity of the system structure!

Assembly Instructions GSP20
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WARNING
WARNING
4.5 M20 screw connector
Figure 4.5 - M20 screw connector
Please note that in every setup, the M20 screw connector connects the
GSP20 ground stack plate to the subwoofer!
Depending on the subwoofer model, use the appropriate mounting hole in the GSP20. Be
sure to keep the center of gravity of the VERA20 loudspeaker assembly above the subwoo-
fer. Move the GSP20 ground stack plate backwards as required.
Secure the complete system setup against falling over!
Make sure that the M20 screw connector is scewed tight!
4.4 Danger of tipping over
M20 screw connector
Make sure that no unauthorized persons can access the system structures!
Cordon off the area professionally!
With every system setup, make sure that the centre of gravity of the system never extends
beyond the outer limits of the base area!
Secure every system setup against falling over!
Any influences on your system setup, such as leaning against objects (or people) and flying
objects around, be refrained from!
WARNING
WARNING

Assembly Instructions GSP20
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WARNING
4.6 Ground stack of the VERA20 loudspeaker
Figure 4.6.1 - Loosen quick-locking pins
1. Loosen the two quick-locking pins at the front of the VERA20 loudspeaker.
2. Both splay links in the front rigging tracks must be extended downwards.
3. Have two persons place the VERA20 loudspeaker on the GSP20 ground stack plate.
4. Pull back the VERA20 loudspeaker until its splay links align with the recesses of the
GSP20 ground stack plate.
Figure 4.6.2 - Pull back the VERA20 loudspeaker
5. Insert the VERA20 loudspeaker´s two front quick-locking pins into the holes of the
GSP20 ground stack plate.
Figure 4.6.3 - Plug quick-locking pins
The fold-out hook on the rear rigging of the lowest VERA20 loudspeaker is used to set the
angle of the assembly:
Follow these steps:
NOTE
NOTE

Assembly Instructions GSP20
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WARNING
WARNING
Figure 4.6.4 - Pull the hook down
6. Loosen the quick-locking pin on the main carrier of the VERA20 loudspeaker´s rear rigging
and fold out the hook by 90°.
7. Lift the VERA20 loudspeaker at the rear and pull the hook all the way down.
8. Select the appropriate level (number of degrees) for your system setup. See figures 4.6.5
to 4.6.10.
9. Attach the hook to the GSP20 ground stack plate using the quick-locking pin on the
GSP20.
Figure 4.6.5 - Side view VERA20 loudspeaker 15° downtilt
Figure 4.6.6 - Side view VERA20 loudspeaker 12° downtilt
Variants:
15°
12°

Assembly Instructions GSP20
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Figure 4.6.7 - Side view VERA20 loudspeaker 9° downtilt
Figure 4.6.8 - Side view VERA20 loudspeaker 6° downtilt
9°
6°
Figure 4.6.9 - Side view VERA20 loudspeaker 0° (horizontal)
Figure 4.6.10 - Side view VERA20 loudspeaker 6° uptilt
0°
6°

Assembly Instructions GSP20
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4.7 VERA20 ground stack setup, from the 2nd loudspeaker
To set up the ground stack array, starting from the second VERA20 loudspeaker, proceed as
follows:
1. Loosen the two quick-locking pins at the front of the VERA20 loudspeaker.
2. Both splay links in the front rigging tracks are now extended.
Figure 4.7.2 - Pull back VERA20 loudspeaker
Figure 4.7.1 - Loosen quick-locking pins
3. Have two persons place the VERA20 loudspeaker on the first VERA20 louspeaker.
4. Pull back the VERA20 loudspeaker until its front splay links align with the rigging tracks of
the lower loudspeaker.
NOTE
NOTE

Assembly Instructions GSP20
15
WARNING
WARNING
5. Insert the VERA20 loudspeaker´s two front quick-locking pins into the holes of the lower
loudspeaker.
6. Use the left slider on the lower VERA20 loudspeaker´s rear rigging to select the angle for
the next upper speaker.
Figure 4.7.3 - Plug quick-locking pins
Figure 4.7.4 - Select lower left slider

Assembly Instructions GSP20
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7. Loosen the quick-locking pin on the main carrier of the upper VERA20 loudspeaker´s rear
rigging and fold out the hook by 90°.
8. Lift the upper VERA20 loudspeaker at the rear and pull the hook all the way down so that
it aligns with the rear rigging of the lower VERA20 loudspeaker.
9. Insert the quick-locking pin into the main carrier of the lower VERA20 loudspeaker´s rear
rigging to secure it.
10.Lower the VERA20 loudspeaker until the hook comes to rest on the lower left slider.
Figure 4.7.5 - Pull the hook down
Figure 4.7.6 - Plug quick-locking pin
WARNING
WARNING

Assembly Instructions GSP20
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WARNING
WARNING
11.Move the right slider of the lower loudspeaker to the left until it displays the same number
of degrees as the left slider. This fixes the upper loudspeaker.
12.Follow the instructions in this section of the manual to connect up to eight VERA20 loudspe-
akers.
Figure 4.7.7 - Move right slider

Assembly Instructions GSP20
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WARNING
WARNING
4.8 Usage GSP20 on subwoofers as gound stack for VERA20
Please note that setting up a ground stack of VERA20 loudspeakers on a
GSP20 ground stack plate always requires two persons!
Please note that the GSP20 ground stack plate must rest flat on the subwoofer and cover it
in full!
Always ensure that the stability of the entire system assembly is guaranteed, especially if it is
inclined!
Attach the VERA20 loudspeakers to each other using all three quick-locking pins!
There are two captive quick-locking pins located on the left and right of the front and one on
the rear rigging at the back.
Always attach the front quick-locking pins of the VERA20 to the splay links first. Then insert
the rear quick-locking pin into the appropriate hole for the desired angle.
To assemble a ground stack of subwoofers and VERA20 loudspeakers (see figure 4.8) place
the GSP20 ground stack plate between the upper subwoofer and the VERA20 loudspea-
kers. Use the captive M20 screw connector (see figure 2.1, pos.2) for assembly!
Connect VERA S18, VERAS32 and VERAS33 subwoofers to each other using the
BLS Boxlink connector sets (both front and back). Use all of the BLS set´s quick-locking pins!
Only the VERA S32 or VERAS33 subwoofers or (recumbent) B18, B30 or VERAS18,
VERA S30 should be used in this application!
Please note that no more than eight VERA20 loudspeakers may be stacked!
WARNING
WARNING
WARNING
WARNING
WARNING

Assembly Instructions GSP20
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Figure 4.8 - System setup ground stack

Assembly Instructions GSP20
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5. Transport and Storage
Ensure that the surface of the ground stack plate is not damaged during transport and sto-
rage. Moisture may penetrate where steel surfaces are exposed by scratches and result in
corrosion.
This is why the product should be transported and stored in a safe, careful, dry and largely
dust-free manner.
NOTE
The original packaging is unsuitable as permanent storage and transport packaging.