Page 2 - Martin Audio – MA1.3s Amplifier; NGLISH; APPROVALS; WARNINGS; Explanation of graphical symbols; CONTENTS; GUIDES
Martin Audio – MA1.3s Amplifier E NGLISH 2 2 APPROVALS This equipment conforms to the requirements of the EMC directive 89/336/EEC, amended by92/31/EEC and 93/68/EEC and the requirements of the Low Voltage Directive 73/23/EEC, amendedby 93/68/EEC. Standard Applied EMC Emission EN55103-1, E3 EMC Immu...
Page 3 - User responsibility; Loudspeaker damage
Martin Audio – MA1.3s Amplifier E NGLISH 3 ! 12. The amplifier is intended to use in a 19” rack. Follow the mounting instructions. When racks with wheelsare used, use caution to avoid injury from tipping when in motion. 13. Unplug this apparatus during lightning storms or when unused for long period...
Page 4 - INTRODUCTION; Unpacking; Input level attenuators; This LED illuminates at –40dB below full output signal
Martin Audio – MA1.3s Amplifier E NGLISH 4 4 INTRODUCTION Thank you for purchasing a Martin Audio power amplifier. This manual contains important information on operatingyour amplifier correctly and safely. Please take some time to read this manual and familiarize yourself with theadvanced features ...
Page 5 - Fan grille filters; and; Rear Panel; Clip limiter switch; . Two of the switches in the DIP-switch are used for Link and Bridge; Gain switch channel A; REAR PANEL FEATURES; Gain switch
Martin Audio – MA1.3s Amplifier E NGLISH 5 ! 7. Fan grille filters Two grilles with foam filters are located on the front panel to prevent dust from entering the amplifier. The grilles areremovable for easy cleaning of the filters by simply pulling them off. The foam filters should always be used. 8...
Page 6 - This; Link switch; Gain dB
Martin Audio – MA1.3s Amplifier E NGLISH 6 T he D IP -sw itch D iffe re n t ga ins a nd fu nctio n ca n b e selecte d for ch an ne l A a n d B, b ya pp ro priate setting of th e D IP switch . S electin g th e m axim u m ga in of th ea mp lifie r is alwa ys a tra de o ff be tw e en n oise an d h ea d...
Page 7 - you are bench testing.; Tandem mode
Martin Audio – MA1.3s Amplifier E NGLISH 7 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...
Page 8 - INSTALLATION; Mounting
Martin Audio – MA1.3s Amplifier E NGLISH 8 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 theintenti...
Page 9 - Never disconnect (lift) the mains safety earth; consumption; First; Power; MAX OUTPUT POWER
Martin Audio – MA1.3s Amplifier E NGLISH 9 the fans then blow at high speed before going into "idle". The two bottom green LEDís then illuminate to show theamplifier is operational. 6.4 Denmark: National deviation concerning installation of the MA1.3s:Danish safety regulation only permits th...
Page 10 - The heat power; CONNECTIONS; connections; Balanced inputs
Martin Audio – MA1.3s Amplifier E NGLISH 10 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 5d...
Page 11 - To daisy chain amplifiers; , provided o n e ach chan nel. It is co nne cte d in; Unbalanced inputs; operating modes; Connecting speakers
Martin Audio – MA1.3s Amplifier E NGLISH 11 CH. B CH. A INPUT INPUT CH.A LINK CH.B LINK GA IN 4 1dB 3 8 dB 3 5 dB 3 2 dB 2 9 dB 2 6 dB 2 3 dB 2 0 dB 6 7 8 1 2 3 GAIN CH.B GA IN CH.A LINK / BRIDGE A+ B ON OFF Current consump tion: 8. 7A 2 30 - 24 0V 5 0- 60 Hz Mus t be gr ounded XLR Pin 1 Scrn Sleeve...
Page 12 - OPERATION; Operating precautions; , about operating voltage and power consumption.; Powering up – Soft start
Martin Audio – MA1.3s Amplifier E NGLISH 12 Channel A and B into two separateSpeakons. Channel A and B into one Speakon(Stereo and Bi-amp) Bridged mono Never connect either output terminal to ground or to some other output or input terminal (see warnings inchapter 1) For normal two-channel operation...
Page 13 - Front Indicators; Clip/limit indicator; PROTECTION FEATURES; Output Limiter; ) by the LED labeled Protect). After five seconds the outputs will
Martin Audio – MA1.3s Amplifier E NGLISH 13 -4 0 dB PROTECT CLIP ON PROTECT CLIP -4 0 dB ON MA1 .3s 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 consta...
Page 14 - Short circuit protection; There are two types of DC protection:; MAINTENANCE; Troubleshooting
Martin Audio – MA1.3s Amplifier E NGLISH 14 9.4 Short circuit protection All Martin Audio MA Series amplifiers are completely short circuit protected. The protection circuit permits very highpeak currents, but still holds the output devices within the safe operating area. If a short circuit is maint...
Page 15 - WARRANTY; General; three; International
Martin Audio – MA1.3s Amplifier E NGLISH 15 11 WARRANTY General The MA 1.3s Power amplifier is warranted to be free from defects in components and factory workmanship undernormal use and service, for a period of three year s from the date of original purchase. During this warranty period MARTIN AUDI...
Page 16 - SPECIFICATIONS MA1.3; MAXIMUM OUTPUT POWER; thd; Input dBu
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 Ω per Channel 350W 340W 4 Ω per Channel 650W 630W 2 Ω per Channel 1100W 1050W 8 Ω Bridged 1400W 1300W 4 Ω Bridged 2200W 1900W MAXIMUM OUTPUT VOLTAGE 8 Ω load 53Vrms...
Page 17 - SHIPPING DIMENSIONS
Martin Audio – MA1.3s Amplifier E NGLISH 17 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 P...
Page 18 - Amplifier; The Martin Experience
MA1.3s Amplifier 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 Please Click here toreturn to main menu Plea...
Page 19 - User’s Guide
The Martin Experience E NGLISH MA1.3s Amplifier User’s Guide All material © 2007. Martin Audio Ltd. Subject to change without notice. CONTENTS < PRINT > GUIDES