User manual MARTIN AUDIO W8LC SCHEMATICS

[. . . ] The Blackline+ Series is a range of portable loudspeaker enclosures designed for a variety of portable sound reinforcement and club applications. Blackline+ products covered in this user's guide include the F8+, F10+, F12+, F15+ and F215+ full-range systems, the H3+ horn-loaded system and the S12+, S15+, S18+ and S218+ sub-bass enclosures. Because the F8+, F10+, F12+ and F15+ are passive systems embodying correct acoustic design principles, they can be used without a controller provided their AES and peak power ratings are not exceeded and care is taken to avoid amplifier clipping. For maximum performance, however, we recommend that Blackline+ Series systems are used with Martin Audio M3+, DX1, DX2 or Engineer system controllers. Introduction 2 Each Martin Audio Blackline+ Series loudspeaker is built to the highest standard and thoroughly inspected before it leaves the factory. [. . . ] The H3H+ is bi-amplified and must be used with a system controller. Martin Audio M3+, DX1, DX2 or Engineer system controllers may be configured to provide the recommended 2-way crossover and limiter functions. Martin Audio DX1, DX2 or Engineer - or series connected M3+ system controllers - may also be used to configure H3H+ systems for additional sub-bass cabinets ­ e. g. H3H+ with S218+. 3. 4 S12+ Sub-bass systems The Blackline S12+ is an extremely compact sub-bass system. It has been designed for use with the F8+ and F10+ full-range loudspeakers in situations where extended low frequency output and increased system headroom are required. The S12+ has an integral, user-selectable 120Hz passive crossover. When switched to Passive mode, the S12+ may be parallel-connected to F8+ or F10+ systems to provide low frequency extension without the need for an additional amplifier. An M3+, DX1, DX2 or Engineer system controller may also be used to provide an active crossover with enhanced control facilities. The S12+ is provided with a top hat fitting that can be used to pole mount an F8+ or F10+ above the enclosure. All material © 2007. Subject to change without notice. S15+ The compact Blackline S15+ sub-bass system has been designed to be used with Blackline F12+ or F15+ full-range systems to extend and increase the total low frequency output power. The S15+ provides good bass punch from a new, long-excursion, 15" (380mm)/4" (100mm) voice coil driver with a water resistant cone and triple roll surround. A common industry standard voltage gain is 32dB (x40). Always check the amplifier gain settings ­ these are usually on the rear panel. Avoid using sensitivity settings as these give different gains depending on the amplifier's power specification. 3) Use the M3+'s carefully timed limiters to avoid exceeding the AES long-term power rating. Important: See section 10 for limiter setting information This policy avoids clipping transient peaks. Clipping not only sounds unacceptable but can seriously stress your system by dumping large amounts of distortion into the high frequency drivers. Blackline+ model F8+ F10 / F12 F15 + + + + Peak power rating 600W into 8 1. 2KW into 8 1. 6KW into 8 3. 2KW into 4 Suggested power amplifier Minimum Recommended MA1. 3s MA1. 6s/ MA4. 8Q* MA2. 8s MA2. 8s MA2. 8s MA1. 6s MA2. 8s MA1. 6s MA1. 3s MA4. 2s MA12K MA12K MA1. 6s/ MA4. 8Q* MA2. 8s/ MA6. 8Q* MA4. 2s MA4. 2s MA4. 2s MA2. 8s MA4. 2s MA2. 8s MA1. 6s MA9. 6K MA18K MA18K F215+ H3 / H3H H3T+ + LF: 3KW into 8 MF-HF: 1. 2KW into 8 LF: 3KW into 8 MF: 1. 2KW into 8 HF: 400W into 8 1. 6KW into 8 3KW into 8 S15+ S18+ S218 + 6KW into 4 (*MA4. 8Q & MA6. 8Q are 4ch installation amplifiers featuring remote monitoring and power on/off facilities) 6 Connections Each connector panel has two Neutrik Speakon connectors wired in parallel with each other. The second connector allows use of a short link lead to power another, parallel Blackline+ loudspeaker. The connectors are wired as follows: F8+, F10+, F12+, F15+, F215+, S12 , S15 , S18 NL4 connection + + + All material © 2007. Subject to change without notice. H3+, H3H+ NL4 bi-amplified connection H3T+ NL8 tri-amplified connection S218+ NL4 connection Note: +1 is connected to +2 and -1 is connected to -2 inside the S218+ to allow 4-core cable users to double the copper area, and, therefore, reduce power losses. 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. All material © 2007. [. . . ] Further operational choices include a 4 input, 8 output DX2 digital controller or a choice of 4 input, 8 output or 8 input, 8 output digital management processors called Engineer. The Engineer offers a flexible event scheduler, automatic programme level and tonality control to compensate for variations in programme sources and a unique psycho-acoustical BassCreator algorithm. See Section 8 (earlier in this document) for further information. All material © 2007. Subject to change without notice. 10 10. 1 M3+ Configuration Front panel With Sub mode To keep things simple, select With Sub mode when using subwoofers, Full Range mode when running F8+, F10+, F12+ or F15+ loudspeakers without subwoofers and set the Combo Card jumpers to the relevant quick-start illustrations shown later in these notes. 10. 2 Choosing a power amplifier Martin Audio loudspeakers are capable of recreating musical dynamics accurately and with incredible impact if powered correctly. [. . . ]