LSS ST17 User manual

PROFESSIONAL AUDIO SYSTEM
ST17
OPERATING MANUAL
Ver. ST17-EN-1.1
LSS Advanced Speaker Systems
Via On. Longo 53-89024 Polistena (RC) ITALY Tel [phone] –Fax [phone] Email: [e-mail] - Internet: www.lss.it

ST17__________________________________________________________________________________
2| Operating Manual ver. ST17-EN-1.1
NOTICE:
LSS products are manufactured for use according to proper procedures by a
qualified operator and only for the purposes described in this manual.
The following conventions are used to indicate and classify precautions in
this manual. Always heed the information provided with them. Failure to
heed precautions can result in injury to people or damage to property.
© LSS, 2016
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in
any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior
written permission of LSS.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because
LSS is constantly
striving to improve its high-quality products, the information contained in this manual is subject to change
without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, LSS assumes
no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of
the information contained in this publication.

______________________________________________________________________________
Operating Manual ver. ST17-EN-1.1 |3
SUMMARY
INTRODUCTION ............................................................................................................................................ 4
SAFETY AND WARNING.............................................................................................................................. 5
CONTROLS AND INSPECTIONS............................................................................................................... 6
APPLICATION................................................................................................................................................. 7
PHYSICAL DESCRIPTION........................................................................................................................... 7
TECHNICAL SPECIFICATIONS.................................................................................................................. 8
INSTALLATION AND WIRING..................................................................................................................... 9
MOUNTING THE ARRAY ....................................................................................................................... 11
INSTALLATION ON BUMPER ............................................................................................................... 15
BUMPER AND SYSTEM HANGING..................................................................................................... 17
ARRAY SIMULATOR SOFTWARE....................................................................................................... 18
INSTALLATION ON A POLE.................................................................................................................. 19
TRANSPORT OF SPEAKERS............................................................................................................... 19
ELECTRICAL CONNECTION................................................................................................................. 20
WEEE DIRECTIVE....................................................................................................................................... 22
DIMENSIONS................................................................................................................................................ 23
NOTES........................................................................................................................................................... 24

ST17__________________________________________________________________________________
4| Operating Manual ver. ST17-EN-1.1
INTRODUCTION
Congratulation on the purchase of your new LSS loudspeaker.
Quality innovation and versatility, this is a summary of the new system
developed by LSS for professional sound users.
LSS produces professional audio products –the result of exceptional
engineering and meticulous craftsmanship.
This manual is intended for use with LSS loudspeaker. This includes: safety
precautions; installation, set-up and operating instruction.
Please read this manual plus any accompanying manual and follow all
relevant precautions and instructions. This should allow you to obtain the
maximum performance from your new loudspeaker.
Where there are conflicts or overlaps, the information in any accompanying
manual supersedes the information in this manual.

______________________________________________________________________________
Operating Manual ver. ST17-EN-1.1 |5
SAFETY AND WARNING
IMPORTANT! SAFETY WARNING!
In the interest of their own and others' safety and to prevent voiding the
warranty, we recommend a careful reading of this section before using the
product.
- This product was designed and manufactured to be used as a speaker system in
the context of a typical sound reinforcement system.
The use for any purpose other than these is not provided by the manufacturer and is
therefore under the direct responsibility of the user / installer.
- This device complies with class I (must be connected to the outlet with a protective
earthing connection).
TO AVOID THE RISK OF FIRE AND / OR ELECTRIC SHOCK*:
- Do not expose this system to rain or moisture. Do not expose the apparatus to
dripping or splashing water. Do not place objects filled with liquids, such as drinks, on
the apparatus.
- Before connecting the system, be sure the mains voltage corresponds to that stated
on the product.
- Connect this appliance to a power outlet with earth contact, according to national
security force, via a power cable of adequate sectionends with a plug or connector
that meets the applicable safety regulations.
- The unit is connected to the network even when the power switch is in position
'0'(OFF). Before any maintenance, disconnect the power cable from the outlet.
*Risk of electric shock only for self-powered system.
IMPORTANT! SAFETY PRECAUTIONS!
Read This First.
Read and heed all warnings and safety instructions in this Manual before using the
product.
Failure to follow all precautions can result in equipment damage and / or personal
injury.
1. Read these instructions.
2. Keep these instructions
3. Heed all warnings and follow all instructions.
4. Use only attachments/accessories specified by the manufacturer.
5. 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.
6. 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.
7. LSS loudspeakers can produce sound levels capable of causing permanent
hearing damage from prolonged exposure. The higher the sound level, the less
exposure needed to cause such damage
CAUTION: This product is energized as long as it is connected to the AC.
CAUTION: Allow at least six inches of free space all around the amplifier for sufficient
ventilation.

ST17__________________________________________________________________________________
6| Operating Manual ver. ST17-EN-1.1
CONTROLS AND INSPECTIONS
This chapter contains important information about precautions to be taken
about the suspension of a LSS line-array system.
Before proceeding with any operation for lifting the system , therefore
recommend that you read this chapter and follow the tips and warnings it
contains. The lifting of a line-array system must be made only by personnel
familiar with proper preparation, experience and knowledge of the applicable
safety standards.
The flow rates of suspension accessories provided by LSS are certified by a
qualified consultant external to the Company.
The original document is available at the LSS office.
You must regularly inspect the facility and , in case of doubt, immediately
replace all the material and all equipment used for the suspension.
This practice is essential to prevent damage to property and or person: no
way you can overlook this rule and proceed by accepting a risk.
We strongly recommend , therefore , to follow a regular program of checks
and inspections on all components, which must bedocumented by inspection
reports compiled by the staff that has installed the system.
In case of accident , local codes may require proofdocumentation of audit
reports and the corrective actionin place following the detection of defects .
In some countries ( including Italy ) rules on the maintenance oflifting
equipment ( hoists , ropes and chains ) require periodic checks and
inspections carried out by a company or by Licensed professionals .
It is absolutely not permissible to accept the risks with regard to safety of
public or staff!
When you suspend a system to support structures on the ceiling or roof, It
must be ensured with extreme care, by calculation or, in some cases, by
instrumental measurements, which do not exceed the maximum flow rate
of the structures themselves in order the installation is absolutely secure .
Do not install speakers or entire systems to unsafe structures . If necessary,
consult licensed professional.
All suspension accessories NOT provided by LSS are under the
responsibility of the user, that uses them at his own risk and peril.

______________________________________________________________________________
Operating Manual ver. ST17-EN-1.1 |7
APPLICATION
ST17 is a high definition line array system designed specifically for vertical
curvilinear array that provides high output, low distortion sound
reinforcement for the entire range of pro audio application.
The 152 (6") mm low frequency cone with 45 mm (1.75") voice coil with
Neodymium magnet and 75 mm (3") voice coil high frequency compression
driver provides higher output and lower distortion plus enhanced power
handling capabilities for better performance in both touring and permanently
installed applications. minimum configuration of this system is four pieces,
for full performance eight or more are recommended. For extended low
Frequency is possible to use a subwoofer of LSS systems
.
PHYSICAL DESCRIPTION
FRONT
TOP
BOTTOM
SIDE REAR
[B][A] [C] [E][D] [H]
[G]
[F]
[A] Fixing brackets [E]Steel protection grid
[B] Enclosure Cabinet [F]Connection panel
[C] Woofer [G] Top Fixing brackets
[D] Wave Guide [H] Bottom Fixing brackets
Materials and construction meet the highest professional standards to ensure maximum reliability

ST17__________________________________________________________________________________
8| Operating Manual ver. ST17-EN-1.1
TECHNICAL SPECIFICATIONS
PHYSICAL
Dimensions mm (±1 mm)
[Inches]
Width 580 [22.83’’]
Front Height 195 [7.68’’]
Rear Height 140 [20.47’’]
Depth 520 [21.26”]
Trapezoid Angle (degrees) 5°
per side
Weight Kilograms
Net Weight14
ShippingWeight17
SYSTEM PERFORMANCE
Frequency Response
±3 dB 75 Hz ~ 18 kHz
-10 dB 58 Hz
Sensitivity (1 Watt @ 1 m)
Full Range 98 dB
LF 98 dB
HF 103 dB
Max SPL Calculated
(Power AES)
[PEAK]
125 dB
[129 dB]
Nominal Input Impedance (Ω)
Full Range Passive 16 Ω
LF 16 Ω
HF 16 Ω
Power Handling (Watt cont.
AES)
Full Range 510 W
LF 400 W
HF 110 W
Peak Power (W)
Full Range 1220 W
LF 1000 W
HF 220 W
Nominal Dispersion (@ -6 dB)
Horizontal 120°
Vertical 9°
MECHANYCAL
Enclosure material
Birch Plywood of 15 mm [0.59
inches]
Finish
Texture poliurethanic black
paint
Grille
Powder coated perforated
steel with anti dust foam
Connectors
2 Neutrik NL4 Speakon
Accessories
Coupling and suspension
hardware (included), Flight
Case for 4 ST17, Pole mount
adapter (optional),

______________________________________________________________________________
Operating Manual ver. ST17-EN-1.1 |9
INSTALLATION AND WIRING
ST17is a line array system designed for vertical curvilinear array that can be
used both in flying or stacking configuration.
Maximum number of
speakers in Flying
configuration is 16
Maximum number of
speakers in Stacking
configuration is 4

ST17__________________________________________________________________________________
10| Operating Manual ver. ST17-EN-1.1
It is recommended to use ST17 together with the sub SB17. They have the
same mounting hardware and similar shape in order to facilitate the creation
of arrays.
It is preferable to install one sub every two speakers.
Maximum number of
speakers in Stacking
configuration is 4
Maximum number of
speakers in Flying
configuration is 16

______________________________________________________________________________
Operating Manual ver. ST17-EN-1.1 |11
MOUNTING THE ARRAY
Each loudspeaker has a hardware that allows to be connected and secured
to the other loudspeaker.
Hardware consist of three points System; two in the front side (Rigging
Holes) used to lock the speaker, and one in the rear (Bracket) used to
regulate the tilt.
Specular points are used to hook another speaker in order to create an
array.
Rigging holes are in the top and in the bottom of the case:
The bracket with rigging holes has a female side and a male side in order to
facilitate the snap-in mounting of more speakers.
Top Rigging Holes
Bottom Rigging Holes
Rear Bracket
Female side
of bracket
Male side
of bracket
Top Rigging Holes
Bottom Rigging Holes

ST17__________________________________________________________________________________
12| Operating Manual ver. ST17-EN-1.1
Overlap the speakers aligning the rigging holes, then secure them with the
quick release pins.
The bracket for the regulation of inclination is in the rear of the case.

______________________________________________________________________________
Operating Manual ver. ST17-EN-1.1 |13
Rear brackets of two overlapping speakers must be connected via the
connecting bracket. Align the holes in the desired position, then secure them
with the quick release pins.

ST17__________________________________________________________________________________
14| Operating Manual ver. ST17-EN-1.1
The regulation holes of the bracket allow to choose the desired inclination of
the top speaker than the bottom speaker.
Value of the degrees of inclination for each hole are shown on the printed
label on the plate: 0°-1.25°-2.5°-3.75°-5°-6.25°-7.5°-8.75°-10°.
Connecting
Bracket
Bottom Speaker’s
Plates
Top Speaker’s
Plates
Regulation
Holes
CAUTION
See the user manual
! !
ST17
400W
16 Ohm
ST17 LABEL
SB17 LABEL
Sub's Plates

______________________________________________________________________________
Operating Manual ver. ST17-EN-1.1 |15
INSTALLATION ON BUMPER
In both Stacking or Flying modes, it is necessary to use the dedicated
hardware.
In case of installation in Stacking mode, install the feet then mount the
speakers.
The fixing method of the first case to the bumper takes place in the same
way of fastening between multiple speakers: attach the speaker to the sides
via rigging holes, then connect the rear bracket adjusting the inclination.
Bumper
Feet
Connecting Bracket
Holes for
suspension and
regulation of
inclination
Hole for connection
with rear bracket of
speaker
Hole for connection
with rigging holes
of speaker

ST17__________________________________________________________________________________
16| Operating Manual ver. ST17-EN-1.1
In case of installation in Flying mode, use the bumper without feet, attach the
speaker to the sides via rigging holes, then connect the rear bracket
adjusting the inclination.

______________________________________________________________________________
Operating Manual ver. ST17-EN-1.1 |17
BUMPER AND SYSTEM HANGING
Bumper can be fixed to the ceiling or other supports via holes for bumper
suspension or the holes for suspension and regulation of inclination using
eyebolts and a chain or a rope able to support the weight of the entire
apparatus.
Suspending the bumper from holes for suspension and regulation of
inclination, it is possible to determine the inclination of the entire system.
Inclination value depends from hole and speakers used because of varying
the number of speakers, change the center of gravity, so for an exact
operation use an inclinometer.
To pull back the system, connect an eyebolt to the rear speaker plates and a
rope or a chain, then manage the inclination.

ST17__________________________________________________________________________________
18| Operating Manual ver. ST17-EN-1.1
ARRAY SIMULATOR SOFTWARE
The angle of tilt of the single speaker, as well as the inclination of the entire
system depends on the location of installation and the listening audience.
To know exactly these angles for optimal installation, equip with an
inclinometer and use the software ‘Array Simulator’* of LSS.
After inserting the information of the speakers system and installation
location, ‘Array Simulator’ software* allows to:
- Display of pointing and layer maps.
- Display the structure of the hanging system .
- Print complete reports.
- Display levels on the areas of listening.
- Calculation of the angle of inclination to thechosen point of suspension.
- Preset for the areas of listening and the setup of the array.
- Display Pressure Levels (SPL).
…………………….
*To receive the software or to have more information, contact your LSS distributors or send an
email to [email protected].

______________________________________________________________________________
Operating Manual ver. ST17-EN-1.1 |19
INSTALLATION ON A POLE
To install the speakers on a pole, it is necessary to use the dedicated
hardware: bumper and pole mount adapter.
Install the bumper on the pole mount adapter, then secure them with the
quick release pins.
TRANSPORT OF SPEAKERS
If you need to move the speakers it is possible to use a flight case on
wheels. It may contain up to four ST17.

ST17__________________________________________________________________________________
20| Operating Manual ver. ST17-EN-1.1
ELECTRICAL CONNECTION
In the connection panel there are two Speakon NL4 connectors referred as
‘IN’ and ‘OUT’.
IN is the input connector and must be connected to the amplifier, ‘OUT’ can
be used to connected other systems.
Speakers of ST17 are linked on pins 1+ 1-.
Channel 2 has been linked from In to the out.
CAUTION
See the user manual
! !
ST17
400W
16 Ohm