Mackie SRM650 Owners Manual - Page 12

SRM550/SRM650 Powered Loudspeakers SRM550/SRM650 Loudspeaker: Rear Panel Features continued... 6. Thru Output This is a male XLR-type connector that produces exactly the same signal that is connected to the main input jack or a mix of channels 1 and 2. Use it to daisy-chain several SRM loudspeakers together off the same signal source(s). They are wired as follows, according to standards specified by the AES (Audio Engineering Society): Balanced XLR Output Connector MON(itor) Speaker Mode - This mode features a low frequency roll-off and a reduction around 2 kHz to ensure maximum gain before feedback in monitor applications. SOLO(ist) Speaker Mode - This mode features a low frequency roll-off to get rid of unwanted thumps and adds boost and sparkle to mid-range and high frequencies. This plug-and-play mode is perfect for singer-songwriters. Pin 1 - Shield (ground) Pin 2 - Positive (+ or hot) Pin 3 - Negative (- or cold) 8 9 10 SHIELD 1 COLD 3 2 HOT 1 3 2 SHIELD COLD HOT Balanced XLR Output Connector See page 8 to learn more about daisy-chaining SRM loudspeakers. For more information on these connectors, see Appendix B on page 21. 7. Ch 1/Mix Switch [Thru Output] This switch allows you to choose whether only the channel 1 signal (pre-gain) is sent out to the next loudspeaker [switch out - Ch 1] or if a mix of the channel 1 and 2 signals are sent out to the next loudspeaker [switch in - Mix] (post-gains). 8. Speaker Mode Here you are able to change the loudspeaker's speaker mode to tailor it to best suit your particular application. There are four modes: PA, DJ, Monitor and Soloist. Press the speaker mode button repeatedly until the LED of the speaker mode you desire is illuminated. Refer to the Frequency Response graphs on page 25 for further information. PA Speaker Mode - This mode is full range, but focuses on mid-range clarity where vocals often reside. This is the place to start for most sound reinforcement applications. DJ Speaker Mode - This mode bumps the lows and highs with a mild tuck to the mids, perfect for music playback. SIG/OL SIG/OL 9. Feedback desTROYer: The multi-band feedback destroyer hunts down offending feedback frequencies and applies up to four notch filters automatically to destroy feedback and maximize gain prior to feedback. This is a great tool for performers without a dedicated engineer. The integrated and amazingly accurate Feedback Destroyer instantly employs up to four incredibly narrow 1/16th octave filters to locate and eradicate feedback so you know you can perform fearlessly. Plus, the entire system is protected by our Smart Protect™ DSP which kicks in to protect your investment when things get pushed a little too hard. 10. Main Logo Switch / Limit LED The Running Man logo on the front of the SRM loudspeaker illuminates when this switch is disengaged and AC power is available at the mains input [1]. Engage the switch if you do not want the Running Man logo to illuminate. SRM550 and SRM650 loudspeakers have a built-in limiter that helps to prevent the amplifier outputs from clipping or overdriving the transducers. The limit indicator illuminates yellow when the limiter is activated. It's okay for it to blink yellow occasionally, but if it blinks frequently or lights continuously, turn down the gain knob [4] until it only blinks occasionally. Excessive limiting may lead to overheating, which in turn trips the thermal protect circuitry and interrupts the performance. See 'Thermal Protection' on page 18 for more information. 12 SRM550/SRM650 Powered Loudspeakers