User manual MARTIN AUDIO EM120

[. . . ] CONTENTS < > PRINT GUIDES CONTENTS (ENGLISH) 1 INTRODUCTION 2 UNPACKING 3 AMPLIFICATION 4 CONNECTING TO AN AMPLIFIER 5 SYSTEM CONFIGURATIONS 6 WARRANTY 7 TECHNICAL SPECIFICATIONS Page No 2 2 3 3 3 5 6 MARTIN AUDIO LONDON The Martin Experience Martin Audio ­ EM SERIES: EM120 CONTENTS < > ENGLISH PRINT GUIDES 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. Standards Applied EMC Emission Immunity EN55103-1:1996 EN55103-2:1996 EN60065:1993 Electrical Safety 1 INTRODUCTION Thank you for purchasing a Martin Audio EM120 loudspeaker system. The EM120 is a sub-bass system designed to be used in conjunction with compact full-range loudspeakers such as the EM15 and EM26 in situations where extended low frequency output is required. [. . . ] The use of very high power amplifiers with outputs greater than those recommended is discouraged. Care should be taken to avoid switch-on surges, which can result in momentary power peaks in excess of specified ratings. When powering up a sound system it is important to switch on the amplifiers after the mixer and control electronics have stabilised. When powering down the system, reverse the sequence and switch off the amplifiers first. 4 CONNECTING TO AN AMPLIFIER Connections are made via stripped wires to avoid the need for soldered connectors. The EM120 enclosure is provided with a pair of 4mm screw terminals. Note: It is important to maintain consistent polarity throughout i. e. Red to Red, Black to Black. 5 SYSTEM CONFIGURATIONS The basic system configuration for one EM120 and up to three EM15's is shown in Fig 1. Up to three EM15's (each in 16 ohm configuration) are wired in parallel with the input of the EM120, and driven from one channel of the power amplifier. This arrangement presents a 3 ohm load to the amplifier. Alternatively, one EM120 may be used with a single EM26, presenting a 4 ohm load to the amplifier. 3 Martin Audio ­ EM SERIES: EM120 CONTENTS < > ENGLISH PRINT GUIDES AMP FROM PRE-AMP 16 ohm 16 ohm 16 ohm 8 ohm 8 ohm 16 ohm 16 ohm 16 ohm LEFT CHANNEL RIGHT CHANNEL (Fig 1) To allow for the addition of further EM15's and balance control between the EM15's and the EM120, a further power amplifier channel may be added to the system as shown in Fig 2. [. . . ] Measured in half space conditions at 2 metres using band limited pink noise, then referred to 1 metre. Due to our policy of continuous improvement all specifications are subject to change without notice. 6 Martin Audio ­ EM SERIES: EM120 CONTENTS < > PRINT GUIDES EM Series EM120 Please Click here to return to main menu Please Click here to visit our website MARTIN AUDIO LONDON 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 CONTENTS < > PRINT GUIDES EM Series EM120 User's Guide ENGLISH MARTIN AUDIO LONDON The Martin Experience [. . . ]