LSS QREX User manual

PROFESSIONAL AUDIO SYSTEM
QREX
OPERATING MANUAL
Ver. QREX-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

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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.

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SUMMARY
INTRODUCTION ............................................................................................................................................ 4
SAFETY AND WARNING.............................................................................................................................. 5
APPLICATION................................................................................................................................................. 6
PHYSICAL DESCRIPTION........................................................................................................................... 6
TECHNICAL SPECIFICATIONS.................................................................................................................. 7
INSTALLATION AND WIRING..................................................................................................................... 8
WEEE DIRECTIVE....................................................................................................................................... 11
DIMENSIONS................................................................................................................................................ 12
NOTES........................................................................................................................................................... 13

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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.

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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 section ends 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.

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APPLICATION
QREX is a 2-Way vertical Arrayable Coaxial Horn Loudspeaker of high SPL
coverage from mid/bass to high frequencies and low distortion. The constant
directivity design of the QREX’s coaxial horns ensures that its 60°X40°
dispersion. The system consists of two passively coupled devices - a 12"
low/ mid frequency driver in horn/reflex system and a 3" HF compression
driver.
Ideal for medium to long-throw applications. This system was designed for
high performance and very high peak output for concert sound and big event
of disco music also ideal for any fixed install application. The trapezoidal
cabinet is constructed out of 18 mm birch plywood and coated polyurethanic
paint. The powering mode is full range passive with input and link of
Speakon NL4 connectors..
.
PHYSICAL DESCRIPTION
[A]
[B]
[C] [D]
[E] [F] [G]
[H]
[I]
[A] Rear adjusting fixing brackets [F] Enclosure Cabinet
[B] Handles [G] Connection panel
[C] Front fixing brackets [H] Fixing brackets
[D] Horn [I] Fixing brackets
[E] Steel protection grid
Materials and construction meet the highest professional standards to ensure maximum reliability

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TECHNICAL SPECIFICATIONS
PHYSICAL
Dimensions mm (±1 mm)
[Inches]
Height 595 [23.46’’]
Front Width 600 [23.62’’]
Rear Width 350 [13.78]
Depth 600 [23.46”]
Weight Kilograms
Net Weight 43
Shipping Weight 50
SYSTEM PERFORMANCE
Frequency Response
±2.5 dB 90 Hz ~ 20 kHz
-10 dB 65 Hz
Sensitivity (1 Watt @ 1 m)
Full Range Passive 101 dB
Max SPL Calculated
(Power AES)
[PEAK]
129 dB
[133 dB]
Nominal Input Impedance (Ω)
Full Range Passive 8 Ω
Power Handling (Watt cont.
AES)
[PEAK]
Full Range Passive 700 W
[1420 W]
LF 590 W [1200 W]
HF 110 W [220 W]
Nominal Dispersion (@ -6 dB)
Horizontal 60°
Vertical 40°
MECHANYCAL
Enclosure material
Birch Plywood of 18 mm [0.70
inches]
Finish
Texture poliurethanic black paint
Grille
Powder coated perforated steel
Connectors
2 Neutrik NL4 Speakon
Accessories
Skate on wheels (optional),
coupling and suspension
hardware (included)

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INSTALLATION AND WIRING
QREX can be installed stand-alone or in multiple configuration.
Multiple installation of QREX can be done both in stack or fly configuration.
Each loudspeaker has a fixing system that allows to be connected and
secured to the other loudspeaker.
Connection system consist of four brackets inserted in the lateral uprights of
the speaker and allow the anchoring of the speaker placed above it.
When more QREX are installed in stack, they must be locked using the
clamping brackets. Maximum 3 QREX can be installed in stack or fly
configuration. The first QREX have to be placed on the BUMPERQREX
support. BUMPERQREX increases stability in stack configuration.
In the rear fixing bracket there are ten holes used for connection with
other QREX, each consecutive hole allows a further inclination of 5
degrees.

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Suspension Hardware allows a very easy connection between QREX
and other QREX or SUBQREX in stack configuration.

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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’ is a
LINK OUT and can be connected to other systems.
Channel 2 has been linked from In to the out.
Choose a safe mounting location, so as to prevent the cables can be
stepped on or create tripping hazards.
Before making connections between mixer and speakers, make sure the
mixer volume is turned down.
You can now use the system.

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WEEE DIRECTIVE
WEEE Directive
Warning!
The product is marked with this symbol which indicates not to discard
electrical and electronic equipment via the normal procedure for disposal of
household waste. For these products there is a diverse collection system in
accordance with legislation that requires proper treatment, recovery and
recycling of used products. For more information please contact the
appropriate local authority.
The black bar underneath indicates that the product was placed on the
market after 13 August 2005.
INFORMATION FOR PROPER DISPOSAL
For home users
In the European Union
Warning: To dispose of this equipment, do not use the ordinary dust bin!
The electrical and electronic equipment must be treated separately and in
accordance with legislation that requires proper treatment, recovery and
recycling of used products. Following the implementation by member states,
private households within the EU can give free electrical and electronic
equipment to designated collection facilities *.
In some countries (*), your local retailer may withdraw the old product for
free if you purchase a new one of similar type.
* For more information please contact the appropriate local authority.
In countries outside the EU: please contact your local authorities and ask
for the correct method of disposal.
In Switzerland: Used electrical or electronic equipment can be returned free
of charge to the dealer, even if you do not purchase a new product.
Further collection facilities are listed on the homepage or www.swico.ch.
www.sens.ch.
For professional users
In the European Union
Warning: If the product is used for business purposes, the following steps to
delete it:
contact your LSS dealer for information about the product recall.
Might be charged for the costs of collection and recycling. Small products
(and amounts) might be taken back by your local collection facilities.
In Spain: contact the established collection system or the local authority for
collection of used products.
In countries outside the EU: please contact your local authorities and ask
for the correct method of disposal.

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DIMENSIONS
FRONT
TOP
BOTTOM
SIDE
60cm
60cm
59,5cm
REAR
60cm

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NOTES

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CONTACT INFORMATION:
LSS Advanced Speaker Systems
Via On. Longo 53
89024 Polistena (RC) ITALY
Tel [phone] –Fax [phone]
Email: [e-mail] - Internet: www.lss.it