Montarbo W18As User manual

W18As

bi-amped, active
loudspeaker system

instruction manual

W18As

bi-amped, active loudspeaker system

The lighting flash with arrowhead symbol within an equilateral triangle, is intended to alert
the user to the presence of uninsulated 'dangerous voltage' within the product's enclosure,
that may be of sufficient magnitude to constitute a risk of electric shock to humans.

The exclamation point within an equilateral triangle, is intended to alert the user to the
presence of important operating and maintenance (servicing) instructions.

IMPORTANT ! SAFETY INSTRUCTIONS

In order to protect your own and others' safety and to avoid

invalidation of the warranty of this product, please read this section

-

This product has been designed and manufactured for being operated as acti­ve speaker system in the applications tipical of a sound reinforcement system or
of a sound recording system. Operation for purposes and in applications other
than these has not been covered by the manufacturer in the design of the
product, and is therefore to be undertaken at end user's and/or installer's sole
risk and responsability.

-

This unit conforms to Class 1 insulation, and for safe use it is required that the
protective earth contact is connected to a grounded (earthed) outlet.

TO AVOID THE RISK OF FIRE AND/OR ELECTRIC SHOCK:

• Never expose this product to rain or moisture, never use it in proximity of water
or on a wet surface. Never let any liquid, as well as any object, enter the product.
In case, immediately disconnect it from the mains supply and refer to servicing
before operating it again. Never place burning candles or other sources of open
flame on top of the device.

• Before connecting this product to the mains supply, always make sure that
the voltage on the mains outlet corresponds to that stated on the product.

• This product must be connected only to a grounded mains outlet complying
to the safety regulations in force via the supplied power cable.
In case the power cable needs to be substituted, use exclusively a cable of the
same type and characteristics.

• This device is connected to the power line even when the mains switch is in the
O (off) position and the power indicator is off. As long as it is plugged in there
are dangerous electrical potentials inside the device, so, before undertaking any
sort of maintenance work etc., always make sure it has been unplugged from the
mains socket.

• Never place any object on the power cable. Never lay the power cable on a
walkway where one could trip over it. Never press or pinch it.

• Never install the product without providing adequate airflow to cool it.
Never obstruct the air intake openings on it. Leave enough room to get to the
mains power socket and the mains connector on the back panel.

• In case the external fuse needs replacement, substitute it only with one of the
same type and rating, as stated on the product.

• Always make sure the Power switch is in its '0' (= off) position before doing
any operation on the connections of the product.

• Before attempting to move the product after it has been installed, remove all
the connections.

• To disconnect the power cable of this product from the mains supply never
pull the cable directly. Hold the body of the plug firmly and pull it gently from
the mains supply outlet.

To prevent fire and/or electrical shock, never disassemble it or

remove the rear panel. For maintenance and servicing always

refer to the official Montarbo Distributor in your Country or

to qualified personnel specifically authorised by the Distributor.

Before placing the product on a surface of any kind, make sure that its shape
and load rating safely match the product size and weight.
Never attempt to hang the product by any means not expressly provided
or approved by the manufacturer (i.e. ropes, chains, belts or whatever medium,
throgh carring handles, bolts, hooks or whatever). In case the product is factory­fitted with specific mounting hardware, always verify before installation that the
lifting and/or hanging system you intend to use is of a proper type and can carry
the product weight with the safety ratio required by the regulations in force.

- To avoid shocks, kicks, or whatever action, always reserve a protected area with
no access to unqualified personnel as installation site of the product. In case the
product is used near children and animals closest supervision is necessary.

- This product can generate very high acoustic pressures which are dangerous for
the hearing system. Always avoid operation at loud levels if anyone is excessively
near to the product (at least 1 m of distance).

 Never expose children to high sound sources

carefully before operating this product.

This product does not contain user serviceable parts.

WARNING

CAUTION!

.

INDEX

 Introduction 3

 Description 3

 Control and connection panel 4

 Important !!! 5

 Technical Specifications 6



Block diagram 6

 Connectors 7

 Connection example 7

PACKAGE CONTENTS

 Bi-amplified active system W18As

 Power supply cable

 XLR to XLR cable (for connection to the mixer)

 Owner’s manual

 Warranty certificate

 CE declaration of conformity

Waste from Electrical and Electronic Equipment
Attention !

The crossed out wheeled bin symbol that can be found on this product means that the
product is covered by the Waste from Electrical and Electronic Equipment Directive.
The symbol is intended to indicate that waste from electrical and electronic equipment
must be subject to a selective collection.

For more details on available collection facilities please contact your local government office or the
retailer where you purchased this product.
The solid bar underneath indicates that the product has been put on the market after 13th August

2005.

INFORMATION ON PROPER DISPOSAL

Information on Disposal for Users (private households)

In the European Union Attention: If you want to dispose of this equipment, please do not use
the ordinary dust bin! Used electrical and electronic equipment should not be disposed of via the
normal household waste stream but must be treated separately and in accordance with legislation
that requires proper treatment, recovery and recycling of used electrical and electronic equipment.
Following the implementation by member states, private households within the EU states may return
their used electrical and electronic equipment to designated collection facilities free of charge*.
In some countries* your local retailer may also take back your old product free of charge if you
purchase a similar new one. * Please contact your local authority for further details.
In other Countries outside the EU: If you wish to dispose of this product, 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 don’t purchase a new product. Further collection facilities are listed on the homepage
of www.swico.ch or www.sens.ch.

Information on Disposal for Professional Users

In the European Union If the product is used for business purposes and you want to discard it:
please contact your Montarbo dealer who will inform you about the take-back of the product.
You might be charged for the costs arising from take-back and recycling. Small products (and small
amounts) might be taken back by your local collection facilities.
In Spain: Please contact the established collection system or your local authority for takeback of your
used products.
In other Countries outside the EU: please contact your local authorities and ask for the correct
method of disposal.

bi-amped, active loudspeaker system

W18As

Introduction

The 2-way bass reflex enclosure incorporates:

■ custom designed, high quality components.

■ 2 amplifiers:

600 + 250 W continuous
850 + 350 W peak

■ 2 independent processors

■ 24dB/Oct electronic crossover

The bass reflex enclosure, constructed from birch plywood, is
equipped with a custom designed 18" low frequency woofer
and a 2" driver with constant directivity horn for the mid/high
frequencies, each driven by its own dedicated power amplifier.
A high slope 24dB/Oct. electronic crossover and two processors
(one for each amplifier) optimize the dynamic range and
frequency response of the system, while protecting the drivers
from thermal and electrical overloads, resulting in increased
reliability and outstanding performance.
Its adaptability to various applications allows the W18As to
be used in any type of installation ensuring optimum results
to any professional requirement for sound reinforcement and
distribution.

The trapezoidal enclosure design is based on solid technical reasons:

• directivity remains constant and controlled, even when two or more

enclosures are installed side by side.

• the problems related to interferences and irregularities in frequency

response and directivity, typically encountered when using multiple
enclosures, are thus dramatically reduced.
Multiple enclosures arrays can be assembled for wide dispersion and/or
long throw.

long throw

wide dispersion

Description

A

C

G

B

F

D

long throw / wide dispersion

A High grade birch plywood construction, phenolic glued;
polyurethane painted

B Constant directivity, high frequency horn (dispersion 90° x 60°)
with 2" dynamic driver (featuring aluminum flat wire voice coil,
kapton former, titanium dome)

C Powder coated, perforated, steel grid.

D 18" high efficiency woofer

E Tunig ports

F Side recessed handles

G Control and connection panel

Construction and components conform to the highest professional
standards for maximum reliability.

E

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