Mackie SP260 Owner's Manual - Page 21

Owner's Manual Limiter Each output has a powerful limiter that may be used to protect loudspeakers from damage due to excessive output levels from the mixer. Three Limiter controls may be edited here: • Attack • Release • Threshold Use the Nav/Edit1 Wheel [7] to change the attack time. Turning this wheel clockwise increases the attack time, while turning it counter-clockwise decreases the attack time. The attack time ranges from 5 ms to 200 ms. The attack time increment depends on where it is currently set: • 5 ms - 20 ms: • 20 ms - 30 ms: • 30 ms - 100 ms: • 100 ms - 200 ms: ±1 ms per click ±5 ms per click ±10 ms per click ±20 ms per click Use the Edit2 Wheel [8] to change the release time by ±0.1 s per click. Turning this wheel clockwise increases the release time, while turning it counter-clockwise decreases the release time. The release time ranges from 0.1 s to 3.0 s. Use the Edit3 Wheel [9] to change the threshold by ±0.2 dBu per click. Turning this wheel clockwise increases the threshold, while turning it counterclockwise decreases the threshold. The threshold ranges from -10.0 dBu to +20.0 dBu. A setting of +20.0 dBu is off. Press the ESC button [11] to exit limiter editing mode. Linking Inputs or Outputs It is possible to link multiple inputs or outputs and edit specific parameters simultaneously. This is handy if you want to set the gain on both inputs to +1.0 dB, for example. Or you could introduce a 3 dB cut at 250 Hz on EQ band 3 on output channels 1-4. This saves valuable time rather than having to make the same change on each input or output. The changes are absolute, not relative, so if you want different values for the same parameter across other inputs or outputs, you need to make these changes on each input or output. To link, simply press and hold any additional input or output Mute / Edit buttons. Any changed parameters will affect all linked inputs or outputs. Wrap-up The SP260 contains a minimal amount of knobs, buttons and other bells and whistles, but it is packed with features awaiting your every command. With little effort, you will be a master of the SP260 2x6 Speaker Processor in no time. Please accept our congratulatory virtual 'Certificate of Achievement', you deserve it...it looks great when framed! VU Meter You may choose between viewing the signal level or the limiter's gain reduction for each output. These will be displayed on the 7-segment LED meters [16]. Turn the Edit2 [8] or Edit3 [9] Wheel to scroll between VU-Meter = Level [default] and VU-Meter = Limiter Act. If the latter is selected, the Clip LED on the selected output(s) will illuminate to indicate 0 dB of gain reduction. When the signal level exceeds the limiter threshold, the top Limit LED will illuminate to indicate gain reduction is occurring. Additional LEDs will illuminate for every 3 dB of gain reduction. Press the ESC button [11] to accept the update and exit VU Meter edit mode. Owner's Manual 21