User manual MARTIN AUDIO C6.8T SCHEMATICS

[. . . ] The horn and reflex sections are entirely separate ­ the horn being powered by a 15" (385mm) driver and the reflex section by a powerful 18" (450mm) device. This combination of horn and reflex technology within a single enclosure results in a dynamic sub-bass with an efficiency of 104dB. 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 Touring Series loudspeakers. Professional loudspeakers are capable of producing extremely high sound levels and should be used with care. [. . . ] Never stand close to loudspeakers driven at high level. 4. 1 Stacking Ensure that the floor or stage is level and solid. Do not stack speakers too high outdoors where winds could topple the stack. Be aware that speakers producing very high power levels can move or creep. To avoid this, place friction material between the floor and speaker and between each speaker. 4. 2 Flying Flying Systems should only be assembled from safety approved loadrated flying bars and fittings by trained and experienced crew, working in association with professional riggers. All arrays must be flown from secure and appropriately load rated rigging points. Seek help from architects, structural engineers or other specialists if in any doubt. Wavefront Touring enclosures are fitted with MAN load certified flying points and are designed to be flown using either the MAN Transformer flying system or the MAN Installer/Tourer (IT) flying system. Both comply with the 12:1 safety factor as specified by the German VGB70 standard. Please refer to the Transformer or IT user guide for complete information on using these systems. This has been found to be the optimum figure to meet the requirements of both small scale and larger scale use. The optimum horizontal inter-cabinet angle between enclosures is 35 degrees between cabinet centre-lines. With the rear edges touching, this is equivalent to a 10" (250mm) gap between cabinet fronts. Butting up the cabinet sides is not recommended. It will reduce the horizontal splay angle to 15 degrees which, though giving increased level on-axis, will result in greater interference between adjacent enclosures. Widening the splay angle to 45 degrees will increase the overall dispersion but results in some loss of level on-axis. The normal crossover point between the C6. 8T and C6. 8TS is 120Hz. For simplicity, the separate horn and reflex sections can be driven with the same signal and amplifier channel. This will result in effective summation of the separate sections up to the crossover point of 120Hz. However, if the C6. 8TS is run with signal delay on the 18" and separate amplifier channels, a further 3dB or so of output will be available in the 120-180Hz region because of improved summation. Wavefront Touring systems combined with the appropriately configured controller exhibit an essentially flat on-axis frequency response. [. . . ] Wavefront Touring systems 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. 6 Martin Audio ­ WAVEFRONT TOURING SERIES CONTENTS < 9 > ENGLISH PRINT APPLICATIONS GUIDE GUIDES WARRANTY Martin Audio Wavefront Touring Series products are warranted against manufacturing defects in materials or craftsmanship over a period of 5 years from the date of original purchase. During the warranty period Martin Audio will, at it's discretion, either repair or replace products which prove to be defective provided that the product is returned in its original packaging, shipping prepaid, to an authorised Martin Audio service agent or distributor. [. . . ]