Martin Audio E1300 Manuel utilisateur

Martin Audio – E1300 Amplifier

CONTENTS (ENGLISH) Page No

CONTENTS 1

1UNPACKING 2

2SERIAL NUMBER 2

3FEATURES 2

4WARNINGS 3

5CAUTION 4

6USER RESPONSIBILITY 4

Loudspeaker Damage 4

Shock Hazard 4

Radio Interference 4

7INTRODUCTION 5

Input Level Attenuators 5

On/Off Switch / Front Panel Indicators 5

Plug In Card / Module 6

Front Panel 6

Function Switches 6

Rear Panel 7

Input Sockets 7

Output Sockets / Ground Lift Switch 7

Mains Voltage / Selection 8

8PROTECTION SYSTEMS 9

Fuse Information 9

9INSTALLATION 10

Mounting 10

Cooling 10

10 OPERATING VOLTAGE 11

Mains Connections 11

Grounding 11

11 POWER CONSUMPTION 12

12 INPUT CONNECTIONS 13

Balanced / Unbalanced 14

13 OUTPUT CONNECTIONS 15

14 CONNECTING LOUDSPEAKERS 15

15 OPERATING MODES 16

Stereo / Tandem (Dual mono) 16

Input Mono Sum 16

Bridged Mono 16

16 OPERATING PRECAUTIONS 17

Powering Up / Input Attenuators / Gain Switch / Indicators 17

17 PROTECTION FEATURES 18

Output Power Limiter / Amplifier Thermal Protection 18

DC Protection 19

Short Circuit / Over Current Protection 19

High Frequency Protection 19

POWER SUPPLY THERMAL PROTECTION 19

18 MAINTENANCE 20

Replacement Fuses 20

19 WARRANTY 21

20 TECHNICAL SPECIFICATION 22

E1300 Plug In Processing Modules 23

1UNPACKING

Every Martin Audio E1300 Amplifier is built to the highest standards and is

thoroughly tested and inspected before it leaves the factory. After

unpacking the amplifier, 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

returned 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 none-

approved packaging.

2SERIAL NUMBER

Every E1300 amplifier has an individual serial number marked on the rear

of the unit. Please make a separate copy of this number and quote it on

any correspondence referring to the amplifier. This serial number provides

us with technical data exclusive to each amplifier.

3FEATURES

1. Plug in front panel module facility eliminating the need for external

controllers

2. High frequency switching power supply, with on board intelligent control

3. Custom heat exchanger with massive surface area and turbulent flow

4. Intelligent inter-dependent logic controlled power supply and audio

protection circuits

5. Dual fan 4-stage thermal control, ensuring the amplifier will provide

maximum performance under any condition

6. Dual die output devices providing high current and reactive load

capabilities

7. Automatic protection against severe amplifier clipping

Martin Audio – E1300 Amplifier

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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: 1998

8. Bridgeable output stage

9. Switchable high pass filters, frequency selectable

10. Balanced XLR inputs with link outs, and dedicated sub bass outputs

(when using plug in module)

11. Selectable input sensitivities and input mono sum facility

12. Speakon output sockets for Channel A, Channel B, and Bridge

4WARNINGS

Do not use this amplifier if the mains cable is damaged.

Always operate this amplifier with the chassis ground wire connected

to the electrical safety earth.

Do not parallel or series connect an amplifier output with any other

amplifier output.

Do not connect the amplifier output to any other voltage source, such

as a battery, mains source or power supply, regardless of whether the

amplifier is turned "ON" or "OFF".

Do not run the output of any amplifier back into another channels

input.

Do not block the air intake or exhaust ports.

Do not operate the amplifier on or near any source of heat.

Do not stand water or any other liquid on or near the amplifier.

Do not spill or splash water, or any other liquid into or onto the

amplifier.

Do not operate the amplifier if liquid ingress is suspected.

Do not remove top cover. Removal of the cover will expose hazardous

lethal voltages and currents and may invalidate warranty.

Keep this manual for future reference.

Martin Audio – E1300 Amplifier

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5CAUTION

There are no user serviceable parts inside this amplifier. Removal of

the cover by unauthorised personnel may invalidate warranty and will

result in exposure to lethal high voltage and current. In the unlikely

event of a fault developing within the E1300 refer servicing to qualified

personnel only.

6USER RESPONSIBILITY

Loudspeaker Damage

Many loudspeakers can be easily damaged or destroyed by overpowering,

especially with the high power available from a bridged amplifier. Always

check the loudspeaker continuous and peak power capability. Even if the

gain is reduced by using the amplifier front panel attenuators, it is still

possible to reach full power output, if the input signal level is high enough.

Shock Hazard

Power amplifiers are capable of producing hazardous output voltages. To

avoid electrical shock, do not touch any exposed loudspeaker wiring when

the amplifier is operational. See page 15 for correct connection of

loudspeakers.

Radio Interference

Asample of this product has been tested and complies with the limits for

the European Electro Magnetic Compatibility (EMC) directive. These limits

are designed to provide reasonable protection against harmful interference

from electrical equipment. This amplifier uses radio frequency energy and if

not used or installed in accordance with these operating instructions, may

cause interference to other equipment. Compliance with the (EMC)

directive does not automatically guarantee non-disturbance of susceptible

equipment in close proximity to this amplifier.

If the amplifier is suspected of causing interference, this can be easily checked

by powering the unit "ON" and "OFF", and observing the disturbance. The

user can correct the interference by one or more of the following steps:

1. Increase the distance between the equipment.

2. Connect the power cable to a socket on a different circuit from that to

which the affected unit is connected.

3. If a radio receiver is affected (normally only AM receivers are affected);

Re-orientate the antenna.

4. Check if the affected equipment complies with the EMC limits for

immunity, (CE-labelled). If not, address the problem with the

manufacturer or supplier. All electrical products sold in the EC must be

approved for immunity against electromagnetic fields, high voltage

flashes and radio interference.

Martin Audio – E1300 Amplifier

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7INTRODUCTION

Thank you for purchasing a Martin Audio power amplifier. This manual

contains important information on operating your amplifier correctly and

safely. Please take some time to read this manual and familiarise yourself

with the advanced features of this amplifier.

1. Carry Protection Handle. Both handles can be used to carry the

amplifier; they also act as a protection for the front panel and the controls.

In fixed installations or where rack front covers are too shallow, they may

be removed by unscrewing the retaining bolts behind the front panel.

2. Input Level Attenuators. These controls are used to set the signal input

levels to Channel A and Channel B. When the controls are in the fully

clockwise position the maximum gain of the amplifier can be utilised.

3. On / Off Switch. The power switch for the amplifier is located to the right

hand side of the front panel. The amplifier is "ON" when the switch is

Down. A red LED will illuminate to show the presence of mains power.

Note:The power switch must remain accessible when the amplifier is

installed.The power switch must be turned "OFF" then back "ON" to

restart the amplifier after a protection shut down has occurred. (See

page 18)

4. Signal Present Indicators. Adjacent to each level control are two green

LED’s, which indicate input level to the amplifier.

5. -3dB Level Indicators. Adjacent to each level control are two amber

LED’s, which indicate when approx half of the amplifier’s power is being

delivered.

6. Max Level Indicators. These red LED’s illuminate when the full power of

each amplifier channel is being delivered.

7. Power ON Indicator. This illuminates when power is connected to the

amplifier and the front panel switch 3is in the "ON" position.

8. Card Enable Indicator. This illuminates when a processing module is

connected.

Martin Audio – E1300 Amplifier

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9. Bridged Indicator. This illuminates when bridge mode is selected

(function switch SW 5 is pushed IN).

10. Thermal Indicator. This indicates the thermal status of the amplifier.

See page 19 for a full description.

Plug In Card / Modules. The E1300 has the facility to accept a Martin

Audio processing module. When fitted it replaces the removable panel on

the front of the amplifier. It is connected to the main motherboard by a

flexible ribbon cable.

Front Panel

Function switches. To access the E1300 function switches, remove the

plug in module / front panel. There are 5 push button switches mounted on

the main motherboard.

SW 1 selects the high pass cut off frequency. Standard frequencies 15Hz

and 30Hz. (30Hz when IN).

SW 2 is high pass filter in / out. (High Pass in when IN).

SW 3 selects the amplifier gain 36dB (0.775v input sensitivity) or 32dB

(1.23V input sensitivity). (32dB when IN).

SW 4 mono sums the inputs. (When IN).

SW 5 is the Output Bridge select. When in bridge mode Channel A input

should be used with Channel A gain control. (Bridged when IN).

When all switches are out, the amplifier is configured unbridged, stereo, the

gain is 36db (0.775v input sensitivity). The high pass filter is out and the

turnover frequency is 15Hz.

Martin Audio – E1300 Amplifier

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Rear Panel

1. Fuse holder. The E1300 is fitted with a bayonet style 1/4turn fuse holder.

See pages 9 & 20 for fuse details and type.

2. Mains Power Connection. The E1300 is supplied with a 1.5M, 3 core

captive cable. (See page 11).

3. Air Inlets. The E1300 uses forced air cooling for efficient operation.

These inlets take in air which is exhausted from the front of the amplifier.

4, 5 and 6. Output Sockets. The amplifier is provided with 3 NL4

SPEAKON output sockets. Connection to the SPEAKON sockets can only

be made with a SPEAKON plug. The output of Channel A, Channel B, and

bridge appear on pins +1 and -1; Pins +2 and -2 are open circuit.

Note: It is important that the correct polarity is observed when

connecting your loudspeaker system.The positive (in phase) output

must always be connected to pin +1, the negative (none phase) output

should be connected to pin -1.

7. Ground Lift Switch. This switch isolates the electrical earth from the

signal 0V (signal ground). When in the lift position earth currents are

prevented from circulating, by inserting an R.C. network between 0V and

Earth.

8. and 9. Input Sockets. 3 pin female XLR connectors are provided for

signal input.

Martin Audio – E1300 Amplifier

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10. Line Level Output Socket. When a processing module is fitted, left

and right sub bass signals can be routed to this output. See module

operating instructions for a full description.

11. and 12 Input Link Sockets. 3 pin male XLR connectors are provided

which are connected in parallel with the input sockets. These can be used

for "daisy chaining" the signal to other amplifiers.

Mains Voltage Selection. The E1300 is dual voltage selectable; it is

normally supplied pre selected for 220/240 Volt AC operation only. For use

on 110/115 Volts AC, internal modifications must be made.

Warning:This modification should only be carried out by an

experienced service technician.

Contact Martin Audio Ltd or an appointed distributor for details.

Martin Audio – E1300 Amplifier

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8PROTECTION SYSTEMS

The E1300 is provided with multiple protection circuits, these include

current and dissipation limiting in the output stage, plus short circuit and

high frequency protection. The power supply also has its own independent,

start-up and shutdown hierarchy plus short circuit and over current

protection.

Fuse Information

1. External mains fuse ceramic: 10 Amp Type T (H) (220-240V)

16 Amp Type T (H) (100-120V)

It is essential that if the fuse needs to be replaced for any reason it is only

replaced with the correct type. The correct fuse allows the E1300 to deliver

full power without danger. If a fuse of lower current rating than specified is

used, or with different fusing characteristics, it will blow prematurely, whilst

a fuse of a higher rating than recommended, is unsafe and dangerous, and

could cause fire, or catastrophic failure in the event of a fault developing

within the amplifier. For details of fuse type, part numbers, and suppliers

(see page 20).

2. Internal fuse 10 Amp Type T (H)

In the event of this DC fuse needing to be replaced, it must be replaced

with a fuse of the same type and current rating. Warning:This should

only be carried out by an experienced service technician. See fuse

specification page 9 & 20.

CAUTION!

DANGEROUS VOLTAGES MAY EXIST IN THIS AMPLIFIER EVEN AFTER

SWITCHING OFF! REFER SERVICING TO QUALIFIED PERSONNEL

ONLY

WARNING!

WAIT AT LEAST FIVE MINUTES BEFORE REPLACING FUSE

Martin Audio – E1300 Amplifier

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9INSTALLATION

Mounting

The amplifier is two-rack unit's high (2U) and will mount in a standard EIA

19" rack. Amplifiers may be stacked directly on top of each other; there is

no need for spacing between units. If it is the intention to fill a rack with

amplifiers, we recommend racking be started from the bottom of the rack. It

is also recommended that rear supports be used for amplifiers, especially if

used as part of a portable system.

Cooling

Your amplifier uses forced air-cooling to maintain an even operating

temperature. All Martin Audio E series amplifiers have rear to front cooling.

Never try to reverse the airflow, as the amplifier needs a pressure chamber

between the fans and the heatsink and this only operates in one direction

of the airflow. Warning: never rack different brands of amplifiers

together with opposing airflow characteristics.

Make sure that there is adequate air supply at the rear of the amplifier and

that the front of the amplifier has sufficient space at the front to allow the

exhaust to escape. If the amplifier is rack mounted, do not use covers or

doors on the front and rear of the rack. For fixed installations with a central

cooling system, and dedicated rack room, it may be necessary to calculate

the maximum heat emission. See page 13.

Martin Audio – E1300 Amplifier

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