User manual MARTIN AUDIO W8LLONGBOW SCHEMATICS

[. . . ] Twelve M10 flying inserts are provided for cabinet rigging. The F215 can be used with or without the M3 controller. Use of the M3 will enhance the low frequency performance of the system and provide high quality limiters to protect the F215 from being overdriven. The M3 can also be used to provide crossover, EQ and limiter functions for the F215 with the Blackline S218 sub-bass system for situations requiring extreme low frequency output. [. . . ] 3. 1 Grille Removal To remove the grille, first remove the grille retaining screws (two at the bottom, one at the top). The grille can then be removed by inserting a flat bladed screwdriver under the top and bottom of the grille and gently levering the grille out of the side channels. 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 Blackline 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 a 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. 3 Martin Audio ­ Blackline F215 CONTENTS < 4. 2 > ENGLISH PRINT GUIDES Rigging and Suspension WARNING: Suspending the system should only be done by qualified personnel following safe rigging practices. Secure fixings to the building structure are vital. Seek help from architects, structural engineers or other specialists if in any doubt. The second connector allows use of a short link lead to power another parallel loudspeaker. The connectors are wired as follows: Figure 4. 2+ +1 2 core -1 1+ NL4 MPR Connector 12+ve +1 -ve -1 (Fig 4) 7 CABLE LENGTHS When connecting Blackline 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 F215 can be used with or without the M3 controller. Use of the M3 will enhance the low frequency performance of the system and provide high quality limiters to protect the F215 from being overdriven. The M3 can also be used to control the F215 with the Blackline S218 subwoofer for more ambitious nightclub installations and live sound reinforcement requiring extreme low frequency output. The number of full-range systems required to match the efficiency of one sub-bass system is shown as a recommended cabinet ratio (RCR). Please note that for simplicity only the left channel is shown and that each line in the diagram represents a pair of wires. 5 Martin Audio ­ Blackline F215 CONTENTS < 8. 1 > ENGLISH PRINT GUIDES F215 Full-range Because the F215 is a passive system embodying correct acoustic design principles, it can be used without a controller provided recommended amplifier power is not exceeded and care is taken to avoid amplifier clipping. Use of an optional M3 controller with its system specific low frequency EQ and built-in limiters will result in improved bass response and system protection. [. . . ] Use of an optional M3 controller with its system specific low frequency EQ and built-in limiters will result in improved bass response and system protection. Mode Switch Full-range (Red LED) J7, J8, J9, J10 IN J15, J16 POSITION `A' J17 POSITION `A' Figure 2. Ch2 Out Left in Optional M3 Controller M3 ­ F215 Amplifier F215 (Fig 2) 8. 2 F215 with S218 Sub-bass RCR=1:1 Mode Switch High-pass (Green LED) J7, J8, J9, J10 IN J15, J16 POSITION `A' J17 POSITION `A' Ch2 Out Figure 3. F215 Left in M3 Controller M3 ­ F215 Ch1 Out Amplifier(s) (Fig 3) S218 6 Martin Audio ­ Blackline F215 CONTENTS < 9 > ENGLISH PRINT GUIDES WARRANTY Martin Audio F215 loudspeakers 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. [. . . ]