Mackie HDA Owners Manual - Page 12

HDA FB121 Flybar Similar to the hook-up diagram on the previous page, this setup is perfect for installs, touring systems, festivals and/or small stages...any venue requiring a 75-100 foot throw. However, two subwoofers are introduced to this setup, providing even low frequency coverage for the flown subs. ACC-R180S Rigging Kits As in the previous hook-up diagram, the Array Mode switch should be in the '3-4' position because four HDAs are in the array. Again, the top one or two HDAs may be set to the '3-4 Long Throw' position if they have to cover an audience at a substantially further distance than the bottom boxes. See the rear panel descriptions on page 13 for more information. It is possible to reproduce this exact same hookup in stereo. Simply utilize the left and right main outputs from the mixer to feed the main inputs of the top subwoofers to mirror the rest of the system as identified above. Another important aspect to keep in mind is the rigging setup of loudspeakers. In this diagram, the HDAs and HD1801 subwoofers are flown utilizing an FB121 Flybar. Note that each subwoofer requires its own ACC-R180S rigging kit, as well. Refer to page 17 to view a table listing other configuration possibilities and pages 18 and 19 for more information about rigging (and eyebolts). Note that the HDAs AC power may be linked via the AC LOOP. Refer to page 6 for details on daisy-chaining AC power. Last, but not least, a VERY important warning: when the FB121 Flybar is used to suspend a system, it can not retain a 10:1 design factor at certain pick points for the largest systems. Please refer to the array usage and rigging sections, starting on page 17 and Appendix A on page 22 to review and run the Resolution software. This predictive software is an invaluable tool in determining safety issues, weights and angles involved, coverage and much more. 12 HDA HDA: 2 HD1801 SUBWOOFERS AND 4 HDA LOUDSPEAKERS FLOWN