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ENGLISH
CONTENTS (ENGLISH) Page No
1 CONTENTS MA1.3S USER GUIDE 1
2APPROVALS 2
3WARNINGS 2
3.1 EXPLANATION OF GRAPHICAL SYMBOLS 2
3.2 WARNING 2
3.3 CAUTION 2
3.4 IMPORTANT SAFETY INSTRUCTIONS 2
3.5 USER RESPONSIBILITY 3
3.5.1 LOUDSPEAKER DAMAGE 3
3.5.2 LOUDSPEAKER OUTPUT HAZARD 3
3.5.3 RADIO INTERFERENCE 3
4 INTRODUCTION 4
4.1 UNPACKING 4
4.2 FRONT PANEL 4
4.3 REAR PANEL 5
5 REAR PANEL FEATURES 5
5.1 GAIN SWITCH 5
5.1.1 GAIN 6
5.1.2 SENSITIVITY 6
5.1.3 OPTIONS 6
5.2 LINK SWITCH 6
5.3 OPERATING
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ENGLISH 2 APPROVALS 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. Standard Applied EMC Emission EN55103-1, E3 EMC Immunity EN55103-2, E3, with S/N below 1% at normal operation level. Electrical Safety EN60065, Class I 3 WARNINGS 3.1 Explanation of graphical symbols The lightning symbol within a triangle is The exclamation mark within a triangle is
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ENGLISH 12. The amplifier is intended to use in a 19” rack. Follow the mounting instructions. When racks with wheels ! are used, use caution to avoid injury from tipping when in motion. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. Do not connect an amplifier output in parallel or series with any other amplifier’s output. Do not connect the amplifier output to any other voltage source, such as a battery, mains outlet, or power supply, regardless o
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ENGLISH 4 INTRODUCTION 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 familiarize yourself with the advanced features of this amplifier. 4.1 Unpacking Each Martin Audio MA series amplifier 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 da
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ENGLISH 7. Fan grille filters Two grilles with foam filters are located on the front panel to prevent dust from entering the amplifier. The grilles are removable for easy cleaning of the filters by simply pulling them off. The foam filters should always be used. 8. Power switch Turns mains power on or off. (See page 8 and 12 ) 4.3 Rear Panel 1 23456?43 1 CH. B INPUT CH.B LINK CH.A LINK CH. A INPUT Clip Limiter A OUTPUT CH.A OUTPUT CH.B LINK / BRIDGE A+B GAIN GAIN CH.B CH.A STEREO 123 GAIN ON 20
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ENGLISH T h e D I P - s w i t c h D i f f e r e n t g a i n s a n d f u n c t i o n c a n b e s e l e c t e d f o r c h a n n e l A a n d B , b y a p p r o p r i a t e set t i ng of t h e D I P swi t c h . S el ect i n g t h e m axi m u m ga i n of t h e a m p l i f i e r i s a l w a y s a t r a d e o f f b e t w e e n n o i s e a n d h e a d r o o m . A l o w g a i n a m p l i f i e r a m p l i f i e s l e s s o f t h e n o i s e o f t h e p r e c e d i n g e q u i p m e n t (
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ENGLISH bandwidth. Be sure to use balanced inputs on all measuring equipment (including oscilloscope probes) if you are bench testing. Reverse operation of Channel B. 5.3.3 Tandem mode In tandem mode channel A input is linked to channel B input, either input socket may then be used to provide the input signal. Tandem mode is activated by placing the two central switches (4 and 5) in the “ON” position (UP). Both input attenuator’s are active, allowing you to set different levels for each channel.
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ENGLISH 6 INSTALLATION 6.1 Mounting The amplifier is two rack units high (2U) and weighs 7.9Kg (17lbs) 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 is started from the bottom of the rack. It is also recommended that rear supports are used for amplifiers mounted in the middle of the rack, especially if used as part of a port
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ENGLISH the fans then blow at high speed before going into "idle". The two bottom green LEDís then illuminate to show the amplifier is operational. 6.4 Denmark: National deviation concerning installation of the MA1.3s: Danish safety regulation only permits the use of an 8A main fuse. As the MA 1.3s uses an internal primary mains fuse of 15A, the MA1.3s must be equipped with an industrial mains connector rated for 16A or above, or as an alternative it can be hard wired to a 16A capacity circuit a
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ENGLISH 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 abo
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ENGLISH CH. B INPUT CH.B LINK CH.A LINK CH. A INPUT LINK / BRIDGE A+B GAIN GAIN CH.B CH.A STEREO GAIN 123 ON 20dB OFF 23dB 26dB XLR 1/ 4“ 29dB Pin 1 Scrn Sleeve 32dB 2 Pos Tip 35dB 3 Neg Ring 38dB 230-240V 50-60H41 z dB Must be grounded 678 Current consumption: 8.7A Th e i np ut i m ped ance i s hi g h eno ugh (20k oh ms ba l an c e d) t o al l ow ” d ai s y - c ha i n i ng ” , or mu l t i pl e p ar a l l el i np ut co nn ec t i on s .
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ENGLISH Bridged mono Channel A and B into one Speakon Channel A and B into two separate (Stereo and Bi-amp) Speakons. Never connect either output terminal to ground or to some other output or input terminal (see warnings in chapter 1) For normal two-channel operation, connect each speaker load across the output’s positive and negative terminals. Pay attention to speaker polarity; loudspeakers connected out of polarity degrade sound quality. Keep the loudspeaker cables as short as possible and us
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ENGLISH PROTECT CLIP -40dB ON MA1.3s PROTECT CLIP -40dB ON Front Indicators The Clip/limit indicator tells when the amplifier output is clipping or limiting. It has two different indication statuses: • If the clip limiter is engaged it has a short time constant and it illuminates briefly. • If the clip limiter is not engaged it has an increased time constant and illuminates for a longer period. The remaining yellow LEDs indicate if any protection circuits are activated. These are described on
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ENGLISH 9.4 Short circuit protection All Martin Audio MA Series amplifiers are completely short circuit protected. The protection circuit permits very high peak currents, but still holds the output devices within the safe operating area. If a short circuit is maintained, the channel affected will eventually go into a thermal protect cycle until the short circuit has been removed. 9.5 AC mains voltage protection If the AC mains voltage is outside the operational window (over or under voltage), th
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ENGLISH 11 WARRANTY General The MA 1.3s Power amplifier is warranted to be free from defects in components and factory workmanship under normal use and service, for a period of three years from the date of original purchase. During this warranty period MARTIN AUDIO LTD or it's nominated agents, will undertake to repair, or at it's discretion, replace this product at no charge to it's owner, when failing to perform as specified, providing the unit is returned undamaged, in it's original packaging
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ENGLISH 12 SPECIFICATIONS MA1.3S MAXIMUM OUTPUT POWER EIA @1kHz 1% thd FTC 20 – 20kHz @ 0.1% thd 350W 340W 8W per Channel 4W per Channel 650W 630W 2W per Channel 1100W 1050W 1400W 1300W 8W Bridged 4W Bridged 2200W 1900W MAXIMUM OUTPUT VOLTAGE 8W load 53Vrms Peak voltage, no load
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ENGLISH SHIPPING DIMENSIONS (W) 560mm x (H) 180mm x (D) 500mm (W) 22ins x (H) 7.1ins x (D) 19.7ins SHIPPING WEIGHT 9.6Kg (21.2lbs) Front Panel Gain controls 2 x 31 Position detent Indicators Protect 2 x Yellow LED’s Indicators 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” per Channel Speakon and Comb jack, are registered Trademarks of Neutr
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MA1.3s Amplifier Please Click here to return to main menu Please Click here to visit our website The Martin Experience 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: info@martin-audio.com All material © 2007. Martin Audio Ltd. Subject to change without notice.
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MA1.3s Amplifier User’s Guide ENGLISH The Martin Experience All material © 2007. Martin Audio Ltd. Subject to change without notice.
