Mackie S515 Owners Manual - Page 10

S500 Series Loudspeakers Repair For warranty service, refer to the warranty information on page 13. Non-warranty service for Mackie products is available at a factory-authorized service center. To locate your nearest service center, visit www.mackie.com, click "Support" and select "Locate a Service Center." Service for Mackie products living outside the United States can be obtained through local dealers or distributors. If you do not have access to our website, you can call our 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. TS Phone Plugs and Jacks "TS" stands for Tip-Sleeve, the two connections available on a mono 1/4" phone jack or plug. They are used for unbalanced signals and speaker connections. SLEEVE SLEEVE TIP TIP TIP SLEEVE 1/4" TS Connector Sleeve = Cold (-) Tip = Hot (+) NL4 These connectors are designed to handle the higher currents produced by amplifiers and have a locking feature to prevent accidental disconnections. Simply line up the tabs on the plug with the jack on the S500 Appendix B: Connections Series loudspeaker, push it in and rotate it clockwise 1/4 turn to lock it in place. The S500 Series loudspeakers have 1/4" and NL4 input and thru connectors. The connectors are wired in parallel, so use only one of the input connectors. Normally, one would use only one thru connector, but it is possible to use both thru connectors. Keep in mind that all of the speakers are connected in parallel through these connectors, so you want to be sure not to go below the minimum impedance requirement of the amplifier. Use heavy gauge, stranded wire for connecting a speaker to the output of a power amplifier. Do not use coaxial cable like a guitar cord to make speaker connections. They are not designed to handle the high currents produced by a power amplifier and can overheat. As the distance between the amplifier and speaker increases, so should the thickness of the wire. Speaker wire has resistance, and when electricity passes through a resistor, power is lost. The thicker the wire, the less the resistance it offers, and the more power actually gets to the speaker. 1- 1+ COLD HOT 1- 2+ 1+ 2- NL4 Connector Pin 1 - = Cold (-) Pin 1 + = Hot (+) Pin 2 - = No Connection Pin 2 + = No Connection 10 S500 Series Loudspeakers