Martin Audio C516 User manual

CONTENTS (ENGLISH) Page No

1 INTRODUCTION 2

2 UNPACKING 2

2.1 Contents of a 1-pack 2

3 CEILING TYPE 3

3.1 Optional support rails 3

3.2 Rigid ceiling tiles 3

3.3 Soft ceiling tiles 3

3.4 Fixed ceilings 3

3.5 Cutting the mounting hole 3

4 INSTALLATION 4

4.1 First fix 4

4.2 Second fix 6

5 TRANSFORMER VERSIONS 7

6 PAINTING THE LOUDSPEAKER 7

7 WARRANTY 7

8 TECHNICAL SPECIFICATIONS 8

Martin Audio – C516 Ceiling Loudspeaker

MARTIN AUDIO

LONDON

The Martin Experience

CONTENTS

GUIDES

1 INTRODUCTION

Thank you for purchasing a Martin Audio C516 ceiling loudspeaker. This is

a versatile flush-mount loudspeaker designed for high quality music and

speech reproduction in distributed sound systems. It has been styled to

present a discrete, high quality appearance which will blend unobtrusively

into commercial and architectural environments.

It features a 6.5" (160mm) 2-way drive unit utilising patented ICT™

(Inductively Coupled Transducer) technology. This size of driver has been

chosen to optimise the conflicting requirements of low frequency extension

and high frequency dispersion.

The C516 is available in the following electrical configurations:

C516 4 ohm

C516T 100V line (Europe and Japan)/ 70V line (USA)

2 UNPACKING

Each C516 is built to the highest standard and thoroughly tested before it

leaves the factory. After unpacking the loudspeaker, examine it carefully for

any signs of transit damage and inform your dealer if any such damage is

found. Check that the electrical configuration supplied (4 ohm, 70/100V

line) is the one you require. It is suggested that you retain the original

packaging so that the speakers can be repacked and returned if necessary.

Please note that Martin Audio and its distributors cannot accept

responsibility for damage to any returned product through the use of non-

approved packaging.

2.1 Contents of A 1-pack

1 loudspeaker baffle

1 back-can (complete with steel strip spring)

1 support bracket + wing nut

Martin Audio – C516 Ceiling Loudspeaker

ENGLISH

This equipment conforms to the requirements of the

EMC Directive 89/336/EEC, amended by 92/31/EEC

and 93/68/EEC and the requirements of the Low

Voltage Directive 73/23/EEC, amended by 93/68/EEC.

Standards Applied EMC Emission EN55103-1:1996

Immunity EN55103-2:1996

Electrical Safety EN60065:1993

CONTENTS

GUIDES

3 CEILING TYPE

Before beginning the installation, it is important to evaluate the construction

of the ceiling. The type of ceiling will affect the installation procedure and

method of connection. It will also determine whether optional support rails

(see Section 3.1) are required. A qualified person such as a building

professional, architect or qualified engineer should make these

determinations.

3.1 Optional support rails

Some ceilings or ceiling tiles may not be strong enough to support the

weight of the speaker without support rails. Whether a ceiling alone is

strong enough to support the weight of the loudspeaker should be

determined by a qualified person such as a building professional or

architect. Optional support rails for the C516 are available from your

dealer.

3.2 Rigid ceiling tiles

Rigid ceiling tiles will normally not require additional support rails, though

these may be deemed necessary if the tiles are likely to be degraded by

moisture.

3.3 Soft ceiling tiles

Soft ceiling tiles will usually require the use of additional support rails since

they may not always support the weight of the loudspeaker.

3.4 Fixed ceilings

Installation of the C516 can be performed without access to the rear of the

ceiling, making it also suitable for use in fixed ceilings.

3.5 Cutting the mounting hole

Cut the mounting hole in the ceiling or tile. The hole required for the C516

is 212mm(8.3”) diameter. The back-can requires a clearance height of at

least 160mm(6.3”) from the rear surface of the ceiling.

Martin Audio – C516 Ceiling Loudspeaker

ENGLISH

CONTENTS

GUIDES

4 INSTALLATION

The C516 is installed in 2 stages:

First fix: Make electrical connections and install back-

can in the ceiling

Second fix: Install speaker baffle

4.1 First fix

Note: The back-can of the C516 is provided with two 20mm holes. One

hole is fitted with a grommet which accepts cables with diameters of

7-10mm and provides light strain relief (see Fig. 1). The other 20mm hole

is fitted with a blanking plug.

IMPORTANT

Please note that is very important for the acoustic performance of the

C516 that the back-can remains airtight after installation. If the

grommet and blanking plug are removed and other cable glands

utilised, these should be airtight.

Depending on local electrical codes, flexible metallic tubing or conduit may

have to be used in conjunction with metal cable glands.

1. The terminal block within the back-can will accept stripped wires. To

prepare the wires for connection, strip back approximately 8mm.

2. Pull the steel strip spring in the back-can to its down position.

3. Insert the stripped wires into push-terminal block in back-can. Please

note that it is important to maintain consistent polarity throughout.

4. If support rails are to be used feed them up through the ceiling cut-out

and place them in parallel positions on either side of the cut-out.

Martin Audio – C516 Ceiling Loudspeaker

ENGLISH

Fig. 1

CONTENTS

GUIDES

5. Put the support bracket through the ceiling cut-out and stand it up on

the ceiling rear surface. If support rails are used, place the feet over

the rails (see Fig. 2).

6. Push the back-can up through the cut-out and locate the hole in the rear

of the back-can on the stud at the centre of the support bracket

(see Fig. 3).

7. Tighten the wing nut on the stud. This will sandwich the ceiling between

the support bracket and the front lip of the can.

Martin Audio – C516 Ceiling Loudspeaker

ENGLISH

ø212mm

Fig. 2

Fig. 3

CONTENTS

GUIDES

4.2 Second fix

1. Attach the safety wire between the back can and loudspeaker baffle

with a screwdriver.

2. With the steel strip spring in its down position, insert the stud attached to

the loudspeaker magnet through the hole in the strip spring (see Fig. 4).

3. Push the retaining clip through the small hole in the stud.

4. Attach the spade terminals to the loudspeaker. The brown wire should

be connected to the + terminal, the blue wire to the - terminal.

5. Rotate the baffle slightly so that the port is clear of the spring and will

not foul it. Gently push the baffle upwards (see Fig. 5). The spring

action will draw the baffle into the can once past its initial resistance.

Martin Audio – C516 Ceiling Loudspeaker

ENGLISH

Fig. 4

Fig. 5

CONTENTS

GUIDES

5 TRANSFORMER VERSIONS

‘T’versions of the C516 have a transformer mounted in the back of the can.

3.7w, 7.5w, 15w, and 30w taps are available for 70v and 100v line systems.

The appropriate taps may be selected by changing a spade link on the p.c.b.

The PCB mounted terminal blocks on the transformer assembly will accept

stripped wires up to 2.5mm2and has a loop out, input link facility. To prepare

the wires for connection, strip back approximately 8mm.

Insert the stripped wires into the terminal blocks by sliding the yellow lever

towards the spade terminals. Please note that it is important to maintain

consistent polarity throughout.

6 PAINTING THE LOUDSPEAKER

Both the outer rim and grille of the C516 may be painted if required and the

grille can be removed to make this easier. If the grille is to be painted, it is

important that a spray can is used rather than a brush, as this will tend to clog

the holes. Please note that Martin Audio cannot accept responsibility for the

quality of finish obtained

7 WARRANTY

Martin Audio C516 Ceiling Loudspeaker is warranted against manufacturing

defects in materials or craftsmanship over a period of 5 years from the date of

original purchase. During the warranty period Martin Audio will, at it's

discretion, either repair or replace products which prove to be defective

provided that the product is returned in its original packaging, shipping prepaid,

to an authorised Martin Audio service agent or distributor.

Martin Audio Ltd. cannot be held responsible for defects caused by

unauthorised modifications, improper use, negligence, exposure to inclement

weather conditions, act of God or accident, or any use of this product that is

not in accordance with the instructions provided by Martin Audio.

Martin Audio is not liable for consequential damages.

This warranty is exclusive and no other warranty is expressed or implied.

This warranty does not affect your statutory rights.

Martin Audio – C516 Ceiling Loudspeaker

ENGLISH

100V 3.7W

70V 3.7W

70V 7.5W

100V 30W

70V 30W PRI

COM

70V 15W

100V 15W

100V 7.5W

COM

4 O HM

8 O HM

INPUT

LINK

LINE

MATCHING

BOARD

ISSUE 1

4OHM

8OHM

COM

30W

15W

7.5W7.5W

7.5W

3.7W

–

CMARTIN AUDIO LTD 2000

70V 100V

Fig 6

CONTENTS

GUIDES

Martin Audio – C516 Ceiling Loudspeaker

ENGLISH

8 TECHNICAL SPECIFICATIONS

C516

TYPE Ceiling Mounted, two-way ICT™

vented baffle

FREQUENCY 80Hz –20kHz

RESPONSE 120Hz –20kHz ± 3dB

DRIVER 1 x 6.5" (160mm) full-range ICT™

RATED POWER 50W AES, 200W peak

RECOMMENDED 50-200W into 4 ohms

AMPLIFIER

SENSITIVITY 88dB (1 watt @ 1 metre)

MAXIMUM SPL 105dB continuous, 111dB peak

IMPEDANCE 4 ohms

DISPERSION (-6dB) 90 degree conical

FINISH Bezel & grille –white

PROTECTIVE GRILLE Expanded metal mesh

CONNECTORS 20mm gland in backcan

OPTIONS 30w line transformer

Tile support rails

DIMENSIONS (OD) 240mm x (D) 180mm

(OD) 9.6ins x (D) 7.1ins

WEIGHT C516 2kg (4.4lbs)

WEIGHT C516T 2.7kg (6lbs)

SHIPPING DIMENSIONS (W) 300mm x (H) 200mm x (D) 300mm

(W) 11.8ins x (H) 7.9ins x (D) 11.8ins

SHIPPING WEIGHT C516 2.5kg (5.5lbs)

SHIPPING WEIGHT C516T 3.2kg (7.1lbs)

Due to our policy of continuous improvement all specifications are subject

to change without notice.

CONTENTS

GUIDES

C516 Ceiling Loudspeaker

Century Point, Halifax Road, Cressex Business Park, High Wycombe, Buckinghamshire HP12 3SL, England.

Telephone: +44 (0)1494 535312 Facsimile: +44 (0)1494 438669

Web: www.martin-audio.com E-mail: [email protected]

The Martin Experience

MARTIN AUDIO

LONDON

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CONTENTS

GUIDES

MARTIN AUDIO

LONDON

The Martin Experience

ENGLISH

C516 Ceiling Loudspeaker

User’s Guide

CONTENTS

GUIDES

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