User manual MARTIN AUDIO AM2 SCHEMATICS

[. . . ] It features a 12" (305mm) bass driver and a 70 x 40 degree high frequency horn. Active or passive operation is selected by a switch on the rear of the enclosure. The WT2 is capable of extremely smooth reproduction with good articulation at all power levels. 3. 3 WT3 The WT3 is an innovative full-range system achieving true three-way performance from an enclosure only 28" (711mm) high. [. . . ] A switch on the rear panel of the WT3 selects either 3-way bi-amp (650Hz active and 3. 3kHz passive crossover) or full 3-way tri-amp operation. 4 SAFETY FIRST It is important that loudspeaker systems are used in a safe manner. Please take some time to review the following points concerning safe use of Wavefront Theatre Series loudspeakers. Professional loudspeakers are capable of producing extremely high sound levels and should be used with care. Hearing loss is cumulative and can result from levels above 90dB if people are exposed for a long period. Never stand close to loudspeakers driven at high level. All material © 2007. Subject to change without notice. 3 Martin Audio ­ WAVEFRONT THEATRE SERIES CONTENTS < 4. 1 > ENGLISH PRINT GUIDES Tripod Mounting The WT2 and WT3 incorporate a pole mounting socket to facilitate mounting on tripod stands between each speaker. When using stands, the following precautions are advised: Ensure that that stand will support the weight of the speaker by checking the stand manufacturers rating. Make sure that the stand is placed on a level surface and that its legs are fully extended. Do not place more than one speaker on each stand. Run cables so that they do not present a trip hazard which could pull the speaker over. When used outdoors in the wind, it may be necessary to add some weight to the base of the stand. An amplifier is normally capable of producing far more power under these conditions than its undistorted rated power output. 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. All material © 2007. Subject to change without notice. 5 Martin Audio ­ WAVEFRONT THEATRE SERIES CONTENTS < 6 > ENGLISH PRINT GUIDES CONNECTIONS Each connector panel has two Neutrik Speakon connectors (NL4 for AM2 and WT2, NL8 for WT3) wired in parallel with each other. The second connector allows use of a short link lead to power another parallel loudspeaker. The connectors are wired as follows: NL4 Pin 11+ 22+ AM2 - Inputs switchable Input 1 -ve Input 1 +ve Input 2 -ve Input 2 +ve NL4 Pin 11+ 22+ WT2 Passive Input -ve Input +ve N/C N/C WT2 Active Low -ve Low +ve High -ve High +ve NL8 Pin 11+ 22+ 33+ 44+ WT3 Bi-amp Low -ve Low +ve Mid/High -ve Mid/High +ve N/C N/C N/C N/C WT3 Tri-amp Low -ve Low +ve Mid -ve Mid +ve High -ve High +ve N/C N/C All material © 2007. Subject to change without notice. 6 Martin Audio ­ WAVEFRONT THEATRE SERIES CONTENTS < 7 > ENGLISH PRINT GUIDES CABLE LENGTHS When connecting loudspeaker systems to an amplifier, it is recommended that the return resistance of the cable used is less than one tenth of the nominal impedance of the system or systems in parallel. The table below gives an indication of the maximum permissible cable runs for various conductor cross-sectional areas. Conductor CSA 1. 0mm2 1. 5mm2 2. 0mm2 2. 5mm2 4. 0mm2 6. 0mm2 4 ohms 11m 17m 22m 29m 44m 66m Maximum Cable Run 8 ohms 16 ohms 22m 44m 34m 68m 44m 88m 58m 116m 88m 176m 132m 264m 8 SYSTEM CONFIGURATIONS The AM2, WT2 and WT3 may be used to cover the full-frequency range ­ either distributed singly or arrayed in multiples. [. . . ] Wavefront Theatre Series loudspeakers combined with the appropriately configured controller exhibit an essentially flat on-axis frequency response. Equalisation to compensate for a particular acoustic environment may be performed where required. Where loudspeakers are arrayed, they may benefit from a degree of equalisation to reduce the effect of the low/mid build up and tilting of the response inherent in the use of multiple arrayed enclosures. All material © 2007. Subject to change without notice. 7 Martin Audio ­ WAVEFRONT THEATRE SERIES CONTENTS < 9 > ENGLISH PRINT GUIDES WARRANTY Martin Audio Wavefront Theatre Series products are warranted against manufacturing defects in materials or craftsmanship over a period of 5 years from the date of original purchase. [. . . ]