Low frequency
crossover for
subwoofer
Mid-frequency
crossover for
speakers
High-frequency
crossover for
speakers
Relative level/delay
between speaker and
subwoofer
Low pass filter: 24 dB/
octave Bessel at 209Hz
equalization adjustments
are made:
• LA5 HF at 0 dB, 0.2
ms delay
• LA5 MF at 0 dB, 0 ms
delay
• (2) S215 at -3 dB, 0
ms delay
For tri-amp systems, adjust the balance of low, mid and high frequency crossover output levels to
achieve the flattest response for the audio system and environment before using any other
equalization.
LS series crossover settings
Select from the following crossover and filter settings for the LS series of speakers.
•
Bi-amped—LS1, LS2
Speaker
Low frequency crossover
High frequency
crossover
Relative level between
speaker frequencies
LS1
High pass filter: 24 dB/octave
Butterworth at 30 Hz
Low pass filter: 24 dB/octave
Butterworth at 350 Hz
High pass filter: 24 dB/
octave L-R at 350 Hz
Low pass filter: None
LF: 0 dB
MF/HF: -2 dB to -4 dB
LS2
High pass filter: 24 dB/octave
Butterworth at 25 Hz
Low pass filter: 24 dB/octave
Butterworth at 350 Hz
High pass filter: 24 dB/
octave L-R at 350 Hz
Low pass filter: None
LF: 0 dB
MF/HF: -1 dB to -3 dB
Low frequency effects filter settings
For Low frequency effects (LFE) systems, use an in-band real-time analyzer method per SMPTE RP200
specifications.
High pass and low pass filter for LFE
subwoofer
Relative level between LFE subwoofer and
speaker
Subwoofers: S118 or S218
High pass filter: 24 dB/octave Butterworth at 20 Hz
Low Pass Filter: 24 dB/octave Bessel at 249 Hz
Per SMPTE RP200 specifications, LFE channel sound
pressure level (SPL): +10 dB above SPL of center
channel, measured in-band on an real-time analyzer,
SPL C weighted/slow response, at standard 2/3 room
length reference, after level/equalization adjustments
are made.
Recommended crossover and filter settings
Recommended Crossover and Filter Settings Instruction Sheet
3
020-101405-04 Rev. 1 (06-2018)
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©
2018 Christie Digital Systems USA, Inc. All rights reserved.
