Mackie Thump18s Owners Manual - Page 15

Owner's Manual Repair For warranty service, refer to the warranty information on page 19. Non-warranty service is available at a factoryauthorized service center. To locate the nearest service center, visit www.720trees.com, click "Contact Tech Support" and select "Locate a Service Center or Distributor" [3]. Service for Thump18S subwoofers outside the United States can be obtained through local dealers or distributors. If you do not have access to our website, you may call the Tech Support department at 1-800-898-3211, Monday-Friday, during normal business hours, Pacific Time, to explain the problem. Tech Support will tell you where the nearest factory-authorized service center is located in your area. Appendix B: Connections Balanced XLR Input Connector Each Thump18S subwoofer has two female XLR inputs. Be sure the cables are wired per AES (Audio Engineering Society) standards: Balanced XLR Input Connector Pin 1 - Shield (Ground) Pin 2 - Positive (+ or hot) Pin 3 - Negative (- or cold) SHIELD 2 HOT COLD 3 1 1 3 2 SHIELD COLD HOT Balanced XLR Input Connector Balanced XLR Output Connector There are also four male balanced XLR output connectors on each Thump18S subwoofer [two high pass and two full range]. Be sure the cables are wired per AES (Audio Engineering Society) standards: Balanced XLR Output Connector Pin 1 - Shield (Ground) Pin 2 - Positive (+ or hot) Pin 3 - Negative (- or cold) SHIELD 1 COLD 3 2 HOT 1 3 2 SHIELD COLD HOT Balanced XLR Output Connector Thump18S subwoofers may be daisy-chained via the male XLR connector labeled "FULL RANGE". Simply plug the signal source (i.e., mixer output) into the input jack(s), and patch that subwoofer's full range jack to the next subwoofer's input jack, and so on, daisy-chaining multiple Thump18S subwoofers. See page 7 for a visual representation of daisy-chaining. Owner's Manual 15