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FDS 360 User Manual 1 V3.0 JMK 14 October 1996 This equipment has been tested and found to comply with the following European Standards for Electromagnetic Compatibility: Emission Specification: EN55013 (1990) (Associated equipment) Immunity Specification: EN50082/1 (1992) (RF Immunity, Fast Transients and ESD) Mains Disturbance: EN61000/3/2 (1995) For continued compliance ensure that all input and output cables are wired with cable screen connected to Pin 1 of the XLR. The input XLR Pin 1 on BSS equipment is generally connected to chassis via a capacitor to prevent ground loops whilst ensuring good EMC compatibility. We have written this manual with the aim of helping installers, sound engineers and consultants alike get to grips with the FDS-360 and obtain its maximum capability. If you are new to BSS products, we recommend that you begin at the start of the manual. If, however, you are already familiar with the intended application, and just want to get the unit installed without delay, then follow the highlighted sections. We welcome any comments or questions regarding the FDS-360 or other BSS products, and you may contact us at the address or World Wide Web site given in the warranty section. 2 Contents Contents 1.0 What is a Crossover? 5 2.0 The difference between Active and Passive Crossovers 6 3.0 Other advantages 7 4.0 The Linkwitz-Riley advantage 8 5.0 What is special about BSS Crossovers? 9 6.0 Unpacking 9 7.0 Mechanical Installation 12 8.0 Mains Power Connection 13 9.0 Input Connections 14 9.1 XLR Plugs. 14 10.0 Output Connections 14 10.1 XLR Plugs 14 11.0 Controls 16 11.1 Mode Switch 16 11.2 Level Control 16 11.3 Mute Switch 16 11.4 Polarity Switch 17 11.5 Mono Low Switch 17 11.6 Phase Control 17 11.7 Limiter Threshold Switch 18 11.8 Signal LEDs 18 12.0 Frequency Cards 19 Card Location for Four Way System 19 Card Location for Three Way System 19 C