Mach Alien S51 Bedienungsanleitung

Alien S51

user manual

138

132

195

out permission in writing from Martin Professional A/S, Denmark.

Printed in Denmark.

P/N 35020003, Rev B

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Fixture location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Operation with a ViroSound sub woofer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Removing the Alien S51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Tweeter protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Introduction

NTRODUCTION

Thank you for selecting the Mach Alien S51. The Alien S51 is a compact and high

performance recessed speaker designed especially for the ceilings or walls of

venues where professional high quality in-fill sound is required.

The acoustic design of the Alien S51 combines a very compact size and true hi-fi

performance with a strong emphasis on good speech intelligibility. As the frequency

content of background noise in many venues is typically located in the mid

frequency area, strong emphasis has been put on clarity and openness in this

frequency area.

Alien S51s can be supported either by the Mach ViroSub sub-woofer or by the bass

output from a main PA in the installation.

The Alien S51 has a very wide and even dispersion that ensures good coverage in

low-ceiling applications.

FEATURES

• 5" woofer with coaxial ¾" neodymium tweeter

• Built in 100V module, enabling operation with a standard amplifier or a 70-100 V

amplifier (which can drive up to 80 Alien S51s)

• Tweeter thermal protection circuit

• 110x110 degree dispersion

• UV stable cabinet and drive unit materials

• High Quality European drive units

SAFETY INFORMATION

Read this manual before powering or installing the fixture, follow the safety

precautions listed below and observe all warnings in this manual and on the fixture.

If you have questions about how to operate the fixture safely, please contact your

Mach dealer or call the Martin Professional 24-hour service hotline at +45 70 200

201.

• Do not install the fixture outdoors.

• Do not removed the covers. There are no user-serviceable parts inside.

Introduction

• When installing the fixture above ground level, verify that the structure can hold at

least 10 times the weight of all installed devices.

• Block access below the work area whenever installing or removing the fixture.

• Do not modify the fixture or install other than genuine Mach parts.

• Refer all service to a Mach service technician.

Installation

NSTALLATION

This section describes in general terms how to mount the fixture and connect it to an

amplifier. These procedures shall be performed by qualified professionals.

FIXTURE LOCATION

The Alien S51 can be used as either a recessed ceiling fixture, or be positioned in a

wall.

When calculating how many Alien S51s to use in a room, a rule of thumb is that

correct coverage can be obtained by placing the Alien S51s a distance apart that

corresponds to the height of the room.

Note that the Alien S51 cannot be installed into a wall or ceiling panel that is more

than 20 mm (0.8 in) thick.

CONNECTIONS

Always use high quality speaker cables. Poor cables will reduce the sound quality

and the reliability of the amplifier and speakers.

The Alien S51 is easily connected to an amplification system through the cable

terminal. For correct polarity always ensure that the positive terminal (red or +) on

the amplifier is connected to the positive terminal on the speaker. Likewise, make

sure that negative terminal (black or -) on the amplifier is connected to the negative

terminal on the speaker.

Note: If one speaker is operated in reverse polarity, the result is a

strong decrease in bass output and lack of focus in the

mid/high frequencies.

Installation

OPERATION WITH A VIROSOUND SUB

WOOFER

For additional sub-bass output, the Alien S51 can be supported by the ViroSound

sub woofer. This sub woofer features a stereo amplifier, which enables it to power

two Alien S51s.

Note that only one Alien S51 can be connected to each output channel.

The ViroSound sub woofer can be ordered from your Mach dealer.

INSTALLATION

To install the Alien S51:

1 Cut a round hole with a

diameter of 182 mm (7.2 in) in

the panel in which the Alien

S51 is to be installed.

2 If the Alien S51 is being driven

by a:

• Standard amplifier, then set

the switch at the top of the

fixture to the 4 ohm position.

• 100 volt amplifier, then set the

switch to the 100 V position.

3 Run speaker leads from the

amplifier to the hole and

connect the speaker leads to the Alien S51. At this point it is a good idea to turn on

the amplifier and test that sound can be heard from the speaker.

4 Insert the Alien S51 into the mounting hole.

182 mm

Installation

5 Using a 3 mm Allen wrench, tighten the screws to lock the fixture in place. Do not over

tighten.

REMOVING THE ALIEN S51

Once installed it is not recommended that you remove the Alien S51 unless

absolutely necessary.

To remove the Alien S51:

1 Remove the 3 Allen screws in the mounting ring (shown in the previous section) using

a 3 mm Allen wrench.

2 Remove the fixture from the wall/ceiling panel.

During this process, particularly if the fixture is wall mounted, you might lose one

or more of the three clamp nuts (P/N 08074102) and rubber bands (P/N 34420503)

that hold the fixture firmly in place when mounted. Should this occur replacement

parts can be ordered from your Mach dealer.

Tweeter protection

WEETER

PROTECTION

The tweeter in the Alien S51 is protected by a thermal protection circuit, which

increases impedance when the current exceeds a safe level. This reduces current to

the tweeter, thus protecting it against damage.

The audible result is a decrease in the output from the tweeter. If this happens, do

not increase the high frequency level on the EQ or the tone control on the mixer, as

this might cause damage to the tweeter. At this time the tweeter has reached its

maximum power handling and if higher output is required, more or larger speakers

are needed.

When volume is decreased and current returns to a safe level, the protection circuit

automatically restores full signal to the tweeter and the audio output returns to

normal.

Specifications

PECIFICATIONS

PHYSICAL

Diameter of fixture at widest point: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 mm (7.7 in)

Depth of recessed base: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 mm (4.7 in)

Weight: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kg (lbs)

Dispersion: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110x110 degrees

Configuration: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-way coaxial drive unit design

INSTALLATION

Maximum thickness of ceiling/wall panel: . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mm (0.8 in)

Diameter of hole required for mounting in ceiling/wall: . . . . . . . . . . . . . . . 182 mm (7.2 in)

POWER

Power handling: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Watt

Frequency range: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Hz - 20 kHz

Impedance (switchable):. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 ohm / 70-100 volts

CONSTRUCTION

Housing: . . . . . . . . . . . . . . . . . . . . . . . Die cast aluminum and polyamide PA 6 (30% glass)

Color: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aluminum and gray

Woofer:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5"

Tweeter: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ¾" soft dome with neodymium magnet

ORDERING INFORMATION

Alien S51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P/N 93101007

INCLUDED ITEMS

User manual:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P/N 35020003

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