MA2.0 High Performance Amplifier User Guide The Martin Experience All material © 2010. Martin Audio Ltd. Subject to change without notice.
Contents Warning g notices s ............................................................................................... 3 1 Insta allation and a operration ..... ..................................................................... 6 1.1 1.2 1.3 1.4 1.5 1.6 2 Setu up and se ettings ................................................................................... 10 2.1 2.2 3 Intrroduction ................ ................................................ ............................
Importa ant safe ety instructions s Caution To reduce the risk of electric shoc ck, do not rremove the cover. No user-servicea u able parts in nside. Referr servicing to qualified service personnel. Safeguarrds Electrical en nergy can perform many y useful funcctions. This unit has bee en engineereed and manufactured to assure yourr personal sa afety. Improp per use can rresult in pote ential electric cal shock or ffire hazards.
Warn ning notices Location Install the amplifier in a well-ventilate ed location w where it will not n be exposed to high teemperature or o humidity. Do not insta all the ampliffier in a locattion that is exxposed to direct rays of the t sun, or nnear to hot appliances orr radiators. Excessive h heat can advversely affectt the cabinet and internal components s. Installation of the ampliffier in a damp p or dusty en nvironment may m result in malfunction or accident.
Martin Audiio recommen nds that you use amplifie ers of this power range for more heaadroom (cleaner sound) rather than for increased d volume. Speaker o output shock hazarrd A Martin Au udio amplifierr is capable of o producing hazardous output o voltag ges. To avoidd electrical shock, do nott touch any e exposed spea aker wiring while w the amp plifier is operrating. This manual contains important information i on operating your Martin Audio aamplifier co orrectly and safety.
Inttroductiion The totally new Martin n Audio MA A2.0 amplifie er technolog gy has changed the w way the worrld looks att professiona al audio amplification. No o other ampliffiers come close c for applications dem manding high h power and long term re eliability. Thanks to ama azing reductiions in heat output along with reducctions in weight and the specific high output po ower, MA2.
1 1.1 Insta allation and a operration Unpack king Carefully op pen the shipp ping carton and a check forr any noticea able damage e. Every Martin Audio amp plifier is completely teste ed and inspec cted before leaving l the fa factory and should s arrive in perfect co ondition. If you y find any damage, no otify the shipping compan ny immediateely. Be sure to save the carton and a all packing materials m for the t carrier's inspection. 1.2 Mountin ng The MA2.
1.3 Operating Precau utions Make sure the AC maiins voltage is correct an nd is the sam me as that printed p on thhe rear of th he amplifier. Damage ca aused by con nnecting the amplifier to improper AC C voltage is not coveredd by the warrranty. Make sure the pow wer switch iss off before making m any in nput or outpu ut connection ns.
1.5 Connec cting Inputts Input conne ections are made m via the 3-pin XLR-fe emale on the e rear of the amplifier. a The figure b below showss the connecttion of analog g input for ba alanced and unbalanced line. You ca an use eitherr configuratio on, but you must m considerr that unbala anced long lin nes can intro oduce noise iin the audio system. s The Link sw witch located d in the rear panel is for d direct paralle eling the rear input conn ectors.
1.6 Connec cting Outp puts Warning: th here are leth hal voltages s at the loud dspeaker co onnectors when w the am mplifier is turrned on. To prevent any y damages turn the am mplifier off be efore conne ecting the lo oudspeaker.. Output conn nectors are made m via Neutrik Speako on connectorrs. Consult th he wire gaugge chart to fin nd a suitable wire gauge to minimize power and damping facctor losses in n the speaker cables. Thhe outputs ca an also workk in bridge mo ode.
2 2.1 S Setup an nd setting gs Introduc ction The figure right shows the front pa anel of the MA2.0 Amp plifier. The front p panel contro ols and indic cators give the user tottal control an nd detailed information about the status of th he amplifier. The gain control use es a logarith hmic scale frrom -∞ to +32dB. Read the instructions below careffully which will explain n the man ny functions of the amplifier. All material © 2 2010 Martin Aud dio Ltd.
2.2 The LED D indicato ors The figure b below showss the front panel of the MA A2.0. The cliip LED, when n lighting, inddicates the clipping c state e for the output stage of th he correspon nding channe el. The signa al, -18dB and d -6dB LEDss operate as V-meter and d the signal L LED is illumin nated when the t signal is present in th he input stage of the corrrespondent channel.
3 3.1 Prote ection Turn-On n-Turn-Offf muting For about fo our seconds after turn-on n, and immed diately at turn n-off, the amplifier outputts are muted. 3.2 Short circuit prottection A short circcuit protection system sa afeguards the e amplifier's output trans sistors underr short circuits and otherr stressful loa ads. It is com mpletely inau udible when iinactive. In th he event of a short circu it condition, the red LED D will be illum minated.
4 4.1 User Maintenanc ce Cleanin ng Disconnect the amplifie er from the AC A main sou urce first; use a soft clotth and mild nnon-abrasive e solution to clean the fa aceplate and chassis. 4.2 Service e There are n no user-servicceable parts in your MA2 2.0 amplifier. Refer servic cing to qualiffied technical personnel. If your MA2.0 amplifier needs n repair, contact you ur Martin Aud dio dealer or distributor. 4.
5 Warra anty Martin Audio MA2.0 is warranted w ag gainst manuffacturing deffects in mate erials or craftftsmanship over o a period d of 3 (three) years from the date of orriginal purcha ase. During the w warranty perriod Martin Audio will, at iits discretion n, either repair or replace products wh hich prove to o be defective e provided th hat the produ uct is returne ed in its origin nal packaging, shipping pprepaid, to an authorised d Martin Audio service agent or distrib butor. Martin Audiio Ltd.
7 7.1 T Technica al notes Block diagram d The diagram m below show ws the ampliifier block dia agram (1 Channel shown n). All material © 2 2010 Martin Aud dio Ltd.
7.2 Therma al Dissipattion Martin n Audio MA2.0 M Level Load Rated Power Sw witch in off position* Power onn, amplifier in iddle mode Pink Noise (1/8 rated power) Pink Noise (1/4 rated power) 8Ω / Stereo 16Ω / bridgedd 4Ω / stereo 8Ω / bridged 2Ω / stereo 4Ω / bridged Watt 2 x 600 1 x 1200 2 x 1000 1 x 2000 N/A N/A 8Ω / Stereo 16Ω / bridgedd 4Ω / stereo 8Ω / bridged 2Ω / stereo 4Ω / bridged 2 x 600 1 x 1200 2 x 1000 1 x 2000 N/A N/A AC Maains 230V AC 115V AC 0.13 0.2 0.09 0.
7.3 Specific cation POWER RE EQUIREMEN NTS Power supp ply......................................................................................115-230V (-15%, + +15%) (50/60Hz) 800VA ................... ........................................................... .................. 0°C Operating te emperature .................... . 0 to 45°C Weight.................................................................. ........................................................... ............ 7.3K Kg (16.
7.4 Technic cal Drawing All material © 2 2010 Martin Aud dio Ltd.
