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Martin Audio – MA1.3s Amplifier

E

NGLISH

16

12

 

 SPECIFICATIONS  MA1.3

S

   MAXIMUM OUTPUT POWER

              EIA @1kHz 1%

 

thd

   FTC 20 – 20kHz @ 0.1% thd

8

    per  Channel

              350W

                        340W

4

    per  Channel

              650W

                        630W

2

    per  Channel

              1100W

                        1050W

8

    Bridged

              1400W

                        1300W

4

    Bridged

              2200W

                        1900W

MAXIMUM OUTPUT VOLTAGE

8

 load 

53Vrms

Peak voltage, no load

 

78Vrms

POWER REQUIREMENTS

230V version

115V version

Operating voltage 

130 – 270

 

Vac 

65 – 135Vac

Minimum start up voltage 

175Vac 

85Vac

Peak inrush current

5A

5A

MAINS CURRENT DRAW @ 4 Ohms

230V version

115V version

Quiescent current (no load)

0.9 Arms

1.8 Arms

1/8

th

 Full power (both channels driven)

5.0 Arms

10 Arms

1/3

rd

 Full power (both channels driven)

8.0 Arms

16 Arms

Full power (1Khz @1% thd) 

14.0Arms

28.0 Arms

DISTORTION

THD 20Hz – 20KHz 1W to full power 

0.07%

THD @ 1KHz 1dB below clip

0.01%

DIM 30 @ 3dB below clip

0.008%

HUM / NOISE

< -105dB

CHANNEL SEPERATION

-70dB

OUTPUT IMPEDANCE

30m

SLEW RATE

40V

µ

S

INPUTS

DIP switch selectable gain Ref
4

 for full power 

Impedance

20K

 Differential

10K

 Single ended

c.m.r.r.

50dB

DIMENSIONS

(W) 483mm x (H) 88mm x  (D) 325mm (incl. Handles)

(W) 19ins x (H) 3.5ins x (D) 12.8ins (incl. Handles)

WEIGHT

7.9Kg (17Ibs)

Gain dB

20

23

26

29

32

35

38

41

Input dBu

+16.7

+13.7

+10.7

+7.7

+ 4.7

+1.7

- 1.3

- 4.3

Input V rms

5.30

3.75

2.65

1.88

1.33

0.94

0.67

0.47

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

CONTENTS

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PRINT

>

GUIDES

Summary of Contents for MA1.3s

Page 1: ...M MODE 7 5 3 4 BRIDGE MONO MODE 7 5 3 5 BRIDGE MONO MODE FEATURES 7 6 INSTALLATION 8 6 1 MOUNTING 8 6 2 COOLING 8 6 3 OPERATING VOLTAGE 8 6 4 DENMARK 9 6 5 GROUNDING 9 6 6 POWER CONSUMPTION 9 6 7 CALC...

Page 2: ...ons 1 Keep this manual for future reference 2 Do not operate the amplifier if liquid ingress is suspected 3 Do not stand water or any other liquid on or near the amplifier 4 Do not use this amplifier...

Page 3: ...the amplifier s front panel attenuator s to reduce the gain it is still possible to reach full output power if the input signal level is high enough 3 5 2 Loudspeaker output hazard Power amplifiers ar...

Page 4: ...he signal level entering the amplifier They are calibrated in dB s to assist the setup of active loudspeaker systems See page 12 3 Protect indicator LED This indicator illuminates if the amplifier att...

Page 5: ...s hot see page 10 4 Link Input XLR male connector connected in parallel to the female for linking the channel to another input 5 Gain switch channel B Three of the switches in the DIP switch selects t...

Page 6: ...power output 1 thd 1KHz sine wave 5 1 3 Options As the DIP switch is recessed a sticker can be placed across the cut out to prevent unauthorized tampering Another option is to remove the DIP switch T...

Page 7: ...edance of the load must be more than 3 ohms Set the Link bridge switches to the ON position UP and use either of the input connectors A or B You can use the remaining input connectors to carry a paral...

Page 8: ...he heat sink temperature rises too high sensing circuits will mute the hot channel If the power supply overheats another sensing circuit will mute both output channels until they cool down to a safe o...

Page 9: ...rmine the power current consumption of the amplifier First the peak current draw at full output power Under this condition the power amplifier will operate for less than 2 minutes before thermally lim...

Page 10: ...EAT 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 Pow...

Page 11: ...connected you will lose 6 dB A better method for using unbalanced sources is shown in Figure 8 This is similar to the connection for balanced lines but pin 3 is connected to the shield at the source T...

Page 12: ...g voltage and power consumption Make sure that the operating mode switches on the rear panel gain link bridge and clip limiters are in the correct position See page 6 about operating modes page 13 abo...

Page 13: ...f the signal is distorted or clipped before it reaches the amplifier the clip limiter will not be activated Under normal operation the clip limiter is inaudible The limiter can be turned ON or OFF by...

Page 14: ...inside of the amplifier These conditions usually occur after prolonged use e g in environments using cracked oil smoke machines If you are using your amplifier for heavy duty use i e concert touring...

Page 15: ...nt weather conditions and normal wear and tear Units on which the serial number has been removed or defaced will not be eligible for warranty service 3 MARTIN AUDIO LTD shall not be responsible for an...

Page 16: ...wer both channels driven 5 0 Arms 10 Arms 1 3rd Full power both channels driven 8 0 Arms 16 Arms Full power 1Khz 1 thd 14 0Arms 28 0 Arms DISTORTION THD 20Hz 20KHz 1W to full power 0 07 THD 1KHz 1dB b...

Page 17: ...tors Clip 2 x Red LED s Indicators Signal Present 2 x Green LED s Rear Panel Input Connectors 2 x Neutrik Combo 3 pin Phoenix Output Connectors 2 x Neutrik Speakons Clip Limiters Push Switch ON OFF pe...

Page 18: ...gland Telephone 44 0 1494 535312 Facsimile 44 0 1494 438669 Web www martin audio com E mail info martin audio com The Martin Experience Please Click here to return to main menu Please Click here to vi...

Page 19: ...The Martin Experience ENGLISH MA1 3s Amplifier User s Guide All material 2007 Martin Audio Ltd Subject to change without notice CONTENTS PRINT GUIDES...

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