Christie LA3S Bedienungsanleitung

Recommended

crossover and filter

settings

Christie Vive Audio systems are designed to use specialized crossover and filter settings for operation

in two-way bi-amplified, three-way tri-amplified, low frequency effects (LFE), surround high pass filter,

or bass management modes.

Use the following crossover and filter settings to ensure that your system is optimally configured.

Precautions

Keep the following points in mind when selecting the crossover and protection filter settings.

• Do not use any crossover or filter settings other than those listed, to avoid sub-optimal

performance and damage to equipment.

• Vive Audio subwoofers feature a vented box design, with extended bass shelf (EBS) tuning.

You must use a high pass protection filter, as specified in this document, to avoid operating

below enclosure tuning frequency and damaging drivers from over-excursion.

• When tuning a system, we recommend performing bulk equalization at the crossover,

balancing speaker and subwoofer output level to achieve the flattest response for the

environment and before any other equalization is applied to system.

Recommended crossover specifications

Use these specifications when selecting an electronic crossover/processor.

Specifications

Specification Description

Filter types Butterworth, Bessel and Linkwitz-Riley with a 24 dB/octave slope

Signal-to-noise ratio 105 dB (minimum), 115dB (optimal)

24 bit converters 48 kHz sample rate (minimum), 96 kHz (optimal)

Inputs/outputs Suitable number for speaker system configuration

Recommended crossover units

• Peavey Digitool Live

Recommended Crossover and Filter Settings Instruction Sheet 1

020-101405-04 Rev. 1 (06-2018)

• Peavey Digitool MX16

• Peavey Digitool MX32

• DBX DriveRack PA+

• DBX DriveRack PA1

• DBX DriveRack 260

Recommended processors with internal crossover function included

• Dolby CP850 Atmos

• Dolby CP850 Base

LA series crossover settings

Select from the following crossover and filter settings for the LA series of speakers, depending on your

system and application.

•Bi-amped—LA1, LA2, LA3, LA4 + S115 or S215

•Tri-amped—LA5 + (2) S215

Bi-amp settings

Low frequency crossover

for subwoofer

High frequency crossover

for speaker

Relative level between speaker and

subwoofer

Subwoofers: S115 or S215

High pass filter: 4th order 24dB/

octave Butterworth at 25Hz

Low pass filter: 24 dB/octave

Bessel at 209Hz

Speakers: LA1, LA2, LA3, LA4

High pass filter: 24 dB/octave

Bessel at 111Hz

Low pass filter: Off (equal to 20

kHz on Digitool)

Relative levels between speaker and

subwoofer at electronic crossover outputs,

as a starting point, before any bulk

equalization adjustments are made:

• LA1 at 0 dB, with S115 at 0 dB

• LA2 at 0 dB, with S215 at -4 dB

• LA3 at 0 dB, with S215 at -4 dB

• LA4 at 0 dB, with S215 at 0 dB

For bi-amp systems, adjust the balance of low and high frequency crossover output levels to achieve

the flattest response for the audio system and environment before using any other equalization.

Tri-amp settings

Low frequency

crossover for

subwoofer

Mid-frequency

crossover for

speakers

High-frequency

crossover for

speakers

Relative level/delay

between speaker and

subwoofer

Subwoofers: (2) S215

High pass filter: 24dB/

octave Butterworth at

25Hz

Speaker: LA5 mid-input

High pass filter: 24 dB/

octave Bessel at 111Hz

Low pass filter: 24 dB/

octave L-R at 1.5kHz

Speaker: LA5 high input

High pass filter: 24 dB/

octave L-R at 1.5 kHz

Low pass filter: Off (equal

to 20 kHz on Digitool)

Relative levels between

speaker and subwoofers at

electronic crossover

outputs, as a starting

point, before any bulk

Recommended crossover and filter settings

Recommended Crossover and Filter Settings Instruction Sheet 2

020-101405-04 Rev. 1 (06-2018)

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)

High pass and low pass filter for LFE

subwoofer

Relative level between LFE subwoofer and

speaker

Approximately equal to LFE Channel SPL: +5 to +6 dB

above SPL of center channel, measured broadband, SPL

meter, C weighted/slow response, at standard 2/3 room

length reference, after level/equalization adjustments

are made.

Surround bass management crossover settings

For bass managed surround systems, adjust the balance of low and high frequency crossover output

levels to achieve the flattest response for audio system and environment, before using any other

equalization. The exception is Dolby Atmos surround systems, which do this automatically.

Speaker series Low frequency crossover for

subwoofer

High frequency crossover for

speaker

LA and LS Subwoofers: S115 or S215

High pass filter: 24 dB/octave Butterworth

at 25 Hz

Low pass filter: 24 dB/octave Butterworth at

80 Hz

Speakers: LA3S, LA3C, LA4S, LA4C, LA5S,

LS1S, LS2S, LS3S, LS4S, and LS5S

High pass filter: 24 dB/octave Butterworth

at 80 Hz

Low pass filter: Off (equal to 20 kHz on

Digitool)

Adjust the relative level of the speaker and subwoofer for the flattest response for the audio system

and environment that it is installed in.

For all Dolby Atmos system installations, the relative level between speaker and subwoofer is set

automatically by the Dolby provided calibration system.

In general, a subwoofer provides approximately +2.5 dB to +3 dB SPL of additional output used with a

surround speaker in a system.

Surround high pass filter settings (optional)

The LA series and LS series surround speakers can be used with full range input signals, or with bass

management.

However, when bass management is not used, we recommend using an optional high pass filter for

optimal efficiency and performance.

Speakers High pass filter Low pass filter

LA3S, LA3C, LA4S, LA4C, LA5S and

LA5C, as well as LS1S, LS2S, LS3S,

LS4S, and LS5S

24 dB/octave Butterworth at 40 Hz None

Technical support

Technical support for Christie products is available at:

• North and South America: +1-800-221-8025 or [email protected]

Recommended crossover and filter settings

Recommended Crossover and Filter Settings Instruction Sheet 4

020-101405-04 Rev. 1 (06-2018)

• Europe, Middle East, and Africa: +44 (0) 1189 778111 or [email protected]

• Asia Pacific: +65 6877-8737 or [email protected]

Recommended crossover and filter settings

Recommended Crossover and Filter Settings Instruction Sheet 5

020-101405-04 Rev. 1 (06-2018)

Andere Handbücher für LA3S

Dieses Handbuch passt für folgende Modelle

Inhaltsverzeichnis

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