Mackie SP260 Owner's Manual - Page 20
SP260 2x6 Speaker Processor
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SP260 2x6 Speaker Processor Delay Setting up output delays on the SP260 is useful for time and phase aligning transducers in bi- and tri-amplified loudspeakers, aligning subwoofers to full-range loudspeakers, aligning delay stacks to mains on stage, and more. As stated on page 14, Delay may be presented in one of three ways: • Time(ms), or • Distance(m) [default], or • Distance(feet) Use the Edit2 Wheel [8] to change the delay by: • ±1.000 ms per click, or • ~±0.340 m per click, or • ~±1.115 feet per click Use the Edit3 Wheel [9] to change the delay by: • ±0.0208 ms per click, or • ~±0.007 m per click, or • ~±0.023 feet per click Turning these wheels clockwise increases the delay time, while turning them counter-clockwise decreases the delay time. The minimum and maximum delay ranges from: • 0.0000 ms - 600.9984 ms • 0.000 m - 204.339 m • 0.000 feet - 670.233 feet Press the ESC button [11] to exit delay editing mode. High Pass Filter High Pass Filters are utilized to set up crossovers in multi-way loudspeaker and subwoofer systems. They may also be used to roll-off low frequencies that fullrange loudspeakers cannot efficiently reproduce. Use the Edit2 [8] Wheel to change the frequency. Turning this wheel clockwise increases the frequency, while turning it counter-clockwise decreases the frequency. The frequency ranges from 20.0 Hz to 20.0 kHz. Turn the Edit3 [9] Wheel to see the various filter type and slope options: • No Cut-Off • Butterworth 6 dB • Butterworth 12 dB • Linkwitz-Riley 12 dB • Bessel 12 dB • Butterworth 18 dB • Butterworth 24 dB • Linkwitz-Riley 24 dB • Bessel 24 dB Press the ESC button [11] to exit this edit mode. Low Pass Filter In conjunction with high pass filters, low pass filters are utilized to set up crossovers in multi-way loudspeaker and subwoofer systems. For example, in a 3-way stereo system, use the high and low pass filters on the output feeding the mid-range transducer to define the range of frequencies it will reproduce. Combined with high and low pass filters on the outputs to the low and high frequency transducers, you may divide the frequency spectrum so each transducer is reproducing the range for which it is best suited, making the system sound its best and operate most efficiently. Use the Edit2 [8] Wheel to change the frequency. Turning this wheel clockwise increases the frequency, while turning it counter-clockwise decreases the frequency. The frequency ranges from 20.0 Hz to 20.0 kHz. Turn the Edit3 [9] Wheel to see the various filter type and slope options: • No Cut-Off • Butterworth 6 dB • Butterworth 12 dB • Linkwitz-Riley 12 dB • Bessel 12 dB • Butterworth 18 dB • Butterworth 24 dB • Linkwitz-Riley 24 dB • Bessel 24 dB 20 SP260 2x6 Speaker Processor Press the ESC button [11] to exit this edit mode.