Martin Audio ICT300 Manuale utente

CONTENTS (ENGLISH) Page No

1 INTRODUCTION 2

2 UNPACKING 2

3 M1 MAINS CONNECTION 3

4 SAFETY FIRST 3

4.1 Tripod mounting 4

4.2 Stacking 4

4.3 Rigging and suspension 4

5 M1 CONNECTIONS 5

6 M1 OPERATION 5

7 ICT300 COMPACT LOUDSPEAKER 6

8 AMPLIFIER POWER 6

8.1 Connecting to an amplifier 6

8.2 Cable lengths 7

9 WARRANTY 7

10 TECHNICAL SPECIFICATIONS 8

Martin Audio – M1 and ICT300

MARTIN AUDIO

LONDON

The Martin Experience

CONTENTS

GUIDES

1 INTRODUCTION

Thank you for purchasing a Martin Audio M1 system controller and ICT300

compact loudspeaker system. The M1 is used to optimise the performance

of the ICT300, whether it is used as a stand-alone system or with additional

sub-bass enclosures.

2 UNPACKING

Every Martin product is built to the highest standard and thoroughly

inspected before it leaves the factory. After unpacking the unit, examine it

carefully for any signs of transit damage and inform your dealer if any such

damage is found. It is suggested that you retain the original packaging so

that the unit can be repacked at a future date 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.

Martin Audio – M1 and ICT300

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 (ICT300)

EN60065:1998 (M1)

CONTENTS

GUIDES

3 MAINS CONNECTION

The M1 is supplied with a captive mains lead with an integral U.K. BS1363

3 pin plug. Should the moulded plug be removed and another plug

substituted the cable must be re-wired as below.

GREEN/YELLOW - EARTH

BROWN - LIVE

BLUE - NEUTRAL

WARNING: The M1 Controller must always be operated with the mains

safety earth connected.

The M1 is supplied from the factory in either 100-120V or

200-240V versions

Mains voltage tolerance ±10% on each setting

Fuse: - type ‘T’ semi-delay 200mA (L) 100-120V

Fuse: - type ‘T’ semi-delay 100mA (L) 220-240V

NO ATTEMPT SHOULD BE MADE BY THE USER TO CHANGE THE

MAINS OPERATING VOLTAGE FROM THAT SUPPLIED, REFER TO

QUALIFIED PERSONNEL ONLY.

4 SAFETY FIRST

It is important that loudspeaker systems are used in a safe manner.

Please take some time to review the following points concerning safe use

of ICT300 compact loudspeakers.

Professional loudspeakers are capable of producing extremely high sound

levels and should be used with care. Hearing loss is cumulative and can

result from levels above 90dB if people are exposed for a long period.

Never stand close to loudspeakers driven at a high level.

Martin Audio – M1 and ICT300

ENGLISH

This equipment must be earthed.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

DO NOT EXPOSE TO RAIN

OR MOISTURE

It should not be necessary to remove any protective earth or signal cable

shield connections.

CONTENTS

GUIDES

4.1 Tripod mounting

The ICT300 incorporates a pole mounting socket to facilitate mounting on

tripod stands. When using stands, the following precautions are advised:

Ensure that the stand will support the weight of the speaker by checking

the stand manufacturers rating.

Make sure that the stand is placed on a level surface and that its legs are

fully extended.

Do not place more than one speaker on each stand.

Run cables so that they do not present a trip hazard which could pull the

speaker over.

When used outdoors in the wind, it may be necessary to add some weight

to the base of the stand.

When using a pole mount with a sub-bass system, observe similar

precautions.

4.2 Stacking

Ensure that the floor or stage is level and solid.

Do not stack speakers too high outdoors where winds could topple the

stack.

Be aware that speakers producing very high power levels can move or

creep. To avoid this, place friction material between the floor and speaker

and between each speaker.

4.3 Rigging and suspension

WARNING: Suspending the system should only be done by qualified

personnel following safe rigging practices. Secure fixings to the

building structure are vital. Seek help from architects, structural

engineers or other specialists if in any doubt.

Martin Audio – M1 and ICT300

ENGLISH

CONTENTS

GUIDES

5 M1 CONNECTIONS

The M1 should be connected immediately preceding the power amplifier(s)

and after any such devices as preamps, mixing desks or other equalisers.

Input connections, which are balanced, are via combination XLR type

sockets and TRS (tip/ring/sleeve) "stereo" jack sockets, wired as follows:

Pin 1 / jack sleeve = Signal 0V

Pin 2 / jack tip = Signal +(hot)

Pin 3 / jack ring = Signal -(cold)

If driving the M1 from an unbalanced source, mono jack plugs may be

used. Under some conditions, this may result in a hum loop. If so,

alternative connections, via an XLR type plug or a TRS jack should be

used, wired as follows.

Pin 1 / jack sleeve = Not connected

Pin 2 / jack tip = Cable inner (signal)

Pin 3 / jack ring = Cable screen (ground)

M1 outputs are pseudo balanced on stereo jack sockets.

Pin 1 / jack sleeve = Signal 0V

Pin 2 / jack tip = Signal + (hot)

Pin 3 / jack ring = Signal - (cold)

6 M1 OPERATION

The M1 is a 2-channel system controller which is recommended for use

with the Martin Audio ICT300 compact loudspeaker system used either full-

range or with additional sub-bass.

When using an ICT300 on its own, set the mode switch on the rear of the

M1 to full-range. If additional bass enclosures are used, set the mode

switch to sub-bass and drive the bass amplifiers from the sub-bass output

jack. In this mode, the M1 functions as a 120Hz electronic crossover with a

single mono bass output. If the bass amplifiers do not have "input link"

sockets or switches, it may be necessary to make up a "one into two" jack

lead to parallel the amplifier inputs when using more than one amplifier

channel to drive bass enclosures.

Martin Audio – M1 and ICT300

ENGLISH

CONTENTS

GUIDES

7 ICT300 COMPACT LOUDSPEAKER

The ICT300 is a compact full-range loudspeaker which has been

engineered to combine high level reproduction with a wide bandwidth,

accuracy and maximum intelligibility. It features twin 10" (250mm) drivers

horizontally aligned in a unique 2-way configuration utilising patented Pro

ICT™ (Inductively Coupled Transducer) technology. This revolutionary

principle uses the magnetic field generated by the 10" (250mm) low

frequency driver's voice coil to inductively drive a 2" (50mm) aluminium HF

diaphragm located at the centre of the device. Because the HF diaphragm

is energised by induction, it has no voice coil of its own to burn out. In

addition, although each ICT™ unit is a true two-way device, there is no

separate crossover network, since the crossover function is inherent in the

ICT™ principle.

8 AMPLIFIER POWER

The ICT300 is designed to be used with a professional standard power

amplifier capable of producing 400-550 watts per channel into 4 ohms.

Care should be taken to avoid switch-on surges which can result in

momentary power peaks in excess of specified ratings. When powering up

a sound system, it is important to switch on the amplifiers after the mixer

and electronic crossover etc. have stabilised. When powering down the

system, reverse the sequence and switch off the amplifiers first.

8.1 Connecting to an amplifier

The panel at the rear of the ICT300 is fitted with two Neutrik Speakon NL4

connectors wired in parallel as follows:

PIN 1- -ve

PIN 1+ +ve

PIN 2- N/C

PIN 2+ N/C

Martin Audio – M1 and ICT300

ENGLISH

CONTENTS

GUIDES

8.2 Cable lengths

When connecting an ICT300 to an amplifier, it is recommended that the

return resistance of the cable used is less than one tenth of the nominal

impedance of the system or systems in parallel. The table below gives an

indication of the maximum permissible cable runs for various conductor

cross-sectional areas driving 4 and 8 ohm loads.

Maximum Cable Run

4 ohms 8 ohms

Conductor CSA (2 x ICT300) (1 x ICT300)

1.0mm211m 22m

1.5mm217m 34m

2.0mm222m 44m

2.5mm229m 58m

4.0mm244m 88m

6.0mm266m 132m

To work out the actual return resistance R for cable run of length L, with each

conductor having cross-sectional area A, use the formula:

R = 2 x 0.017 x L

9 WARRANTY

Martin Audio ICT300 Compact Loudspeakers are warranted against

manufacturing defects in materials or craftsmanship over a period of 5 years

from the date of original purchase. The M1 System Controller is warranted

against manufacturing defects in materials or craftsmanship over a period of

1 year 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 – M1 and ICT300

ENGLISH

CONTENTS

GUIDES

10 TECHNICAL SPECIFICATIONS

GAIN 0dB @ 1kHz

HUM & NOISE -90dBm 20Hz-20kHz

INPUTS Left & right, 2 x combined XLR/1/4" TRS

jack, electronically balanced

OUTPUTS Left, right & sub-bass, 3 x 1/4" jack,

pseudo balanced

MAXIMUM INPUT/OUTPUT +20dBu

ELECTRONIC CROSSOVER FREQUENCY

120Hz

FRONT PANEL INDICATORS Full-range, sub-bass LED's

REAR PANEL CONTROLS Full-range/sub-bass switch

MAINS SUPPLY 100-120V or 200-240V AC 50/60Hz

DIMENSIONS (W) 483mm x (H) 44mm x (D) 102 mm

(W) 19ins x (H) 1.75ins x (D) 4.0ins

WEIGHT 1.2kg (2.6lbs)

SHIPPING DIMENSIONS (W) 545mm x (D) 120mm x (H) 235mm

(W) 21.5ins x (D) 4.7ins x (H) 9.3ins

SHIPPING WEIGHT 1.8 Kg (3.9 lbs)

ICT300

TYPE Twin-driver ICT™

FREQUENCY RANGE 55Hz-18kHz (with equaliser)

DRIVERS 2 x 10" (250mm) full-range ICT™

POWER 300W AES, 1200W peak

RECOMMENDED AMPLIFIER 400-550W into 4 ohms

SENSITIVITY 96dB 1W @ 1m

MAXIMUM SPL 119dB continuous, 125dB peak

IMPEDANCE 8 ohms nominal

DISPERSION (-6dB POINTS) 100 degs horizontal x 40 degs vertical

ENCLOSURE Multi-laminate birch ply

FINISH Textured paint

PROTECTIVE GRILLE Perforated steel with 48% free air flow

CONNECTORS 2 x Neutrik NL4

FITTINGS 8 x M8 inserts

1 x pole mount socket

DIMENSIONS (W) 565mm x (H) 325mm x (D) 325mm

(W) 22.25ins x (H) 12.75ins x (D) 12.75ins

WEIGHT 16kg (35lbs)

SHIPPING DIMENSIONS (W) 680mm x (H) 390mm x (D) 450mm

(W) 26.8ins x (H) 15.4ins x (D) 17.7ins

SHIPPING WEIGHT 19kg (41.9lbs)

Due to our policy of continuous product improvement all specifications are subject to change without notice.

Martin Audio – M1 and ICT300

ENGLISH

CONTENTS

GUIDES

M1 System Controller &

ICT300 Compact 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

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MARTIN AUDIO

LONDON

The Martin Experience

ENGLISH

M1 System Controller &

ICT300 Compact Loudspeaker

User’s Guide

CONTENTS

GUIDES

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