Martin Audio Connections, MA1.3s HEAT POWER, 7.1.1Balanced inputs, English, Contents, Print

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MA1.3s HEAT POWER

CONTENTS

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We recommend you to design the power distribution for at least the current at 1/8 power, and 1/3 power for heavy- duty demands such as concert touring and industrial music etc.

The heat power can be calculated as follows:

If a headroom figure of at least 5dB (1/3 of full power) is used with a 4 ohms load on each output of the amplifier. The 1/3 power per channel is then; 650 / 3 = 217watts, and the total output power = 2 x 217 = 433 watts.

The power consumption according to the chart above is then 1330watts.

The heat power produced is the difference between the power consumption and output power; 1120 - 433 = 687 watts total for the amplifier.

GUIDES

ENGLISH

MA1.3s HEAT POWER

 

1/3 POWER

1/8 POWER

1/3 POWER

1/8 POWER

1/3 POWER

1/8 POWER

 

WATTS

Kcal/hour

BTU/hour

8 Ohm

397

313

340

270

1350

1070

4 Ohm

687

538

590

460

2340

1840

2 Ohm

1242

910

1070

780

4240

3110

1/3 Power level = Average power with music as programme source. The amplifier driven to clip level 1/8 Power level = Normal operating power with music as programme source, 9dB headroom

7 CONNECTIONS

7.1Input connections

7.1.1Balanced inputs

XLR Input connectors are active balanced and wired according to the IEC 268, that is pin 2 hot, and wired in the following way:

PIN 1

 

GROUND/SHIELD

PIN 2

 

HOT (+)

PIN 3

 

COLD (-)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7 CONNECTIONS7.1.1Balanced inputsManual backgroundManual backgroundManual background ground

XLR input connector

XLR balanced

Within the Neutrik Combojack there is a _î(6.3mm) phone jack, which is wired in parallel with the XLR.

TIP

HOT

RING

COLD

SLEEVE

SHIELD/GROUND

All material © 2007. Martin Audio Ltd. Subject to change without notice.

1/4 TRS plug

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Martin Audio MA1.3s Amplifier

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Contents ENGLISH CONTENTSMartin Audio - MA1.3s Amplifier PRINTCONTENTS 2 APPROVALS3 WARNINGS Martin Audio - MA1.3s Amplifier3.5.3Radio interference 3.5.1Loudspeaker damage3.5.2Loudspeaker output hazard CONTENTS5. Signal present indicator 3. Protect indicator LED4. Clip/limit indicator 6. On indicator1. Output / Speaker connector 5 REAR PANEL FEATURES8. Power switch 2. Clip limiter switch5.1.2 Sensitivity 5.3.2Notes for amplifier testing5.1.1Gain 5.1.3Options5.3.4Bridge mono mode 5.3.5 Bridge mono mode features5.3.3Tandem mode CONTENTSLIVE 6 INSTALLATIONBLACK or BROWN WHITE or BLUECONTENTS Never disconnect lift the mains safety earthMAX OUTPUT POWER Martin Audio - MA1.3s Amplifier7.1.1Balanced inputs MA1.3s HEAT POWER7 CONNECTIONS CONTENTSMartin Audio - MA1.3s Amplifier 7.1.2Unbalanced inputsCONTENTS ENGLISHMartin Audio - MA1.3s Amplifier 8 OPERATIONCONTENTS ENGLISHMartin Audio - MA1.3s Amplifier 9 PROTECTION FEATURESCONTENTS ENGLISHCONTENTS 10 MAINTENANCEFault No output Martin Audio - MA1.3s AmplifierInternational 11 WARRANTYTechnical assistance and services GeneralPOWER REQUIREMENTS SPECIFICATIONS MA1.3SMAXIMUM OUTPUT POWER DIMENSIONS WEIGHTFront Panel SHIPPING DIMENSIONSSHIPPING WEIGHT Rear PanelCONTENTS MA1.3s AmplifierThe Martin Experience Please Click here to return to main menuENGLISH CONTENTSUser’s Guide MA1.3s Amplifier