Harman CROWN XLS Série Manuel D'utilisation page 8

Integrated Processing Features
page 8
PureBand Crossover System:
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The PureBand Crossover System provides a variable state Linkwitz-Riley 24dB/octave filter allowing you to choose a point
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between 50Hz and 3kHz on 1/12th octave centers. The following points are available for choice:
50Hz, 53Hz, 56Hz, 59Hz, 63Hz, 66Hz, 70Hz, 74Hz, 79Hz, 83Hz, 88Hz, 94Hz, 99Hz, 105Hz, 111Hz, 118Hz, 125Hz,
132Hz, 140Hz, 149Hz, 157Hz, 167Hz, 177Hz, 187Hz, 198Hz, 210Hz, 223Hz, 236Hz, 250Hz, 265Hz, 281Hz, 297Hz,
315Hz, 334Hz, 354Hz, 375Hz, 397Hz, 420Hz, 472Hz, 500Hz, 530Hz, 561Hz, 595Hz, 630Hz, 667Hz, 707Hz, 749Hz,
794Hz, 841Hz, 891Hz, 944Hz, 1.00kHz, 1.06kHz, 1.12kHz, 1.19kHz, 1.26kHz, 1.33kHz, 1.41kHz, 1.50kHz, 1.59kHz,
1.68kHz, 1.78kHz, 1.89kHz, 2.00kHz, 2.12kHz, 2.24kHz, 2.38kHz, 2.52kHz, 2.67kHz, 2.83kHz, 3.00kHz
Along with your choice in crossover frequency, the PureBand™ Crossover System also provides you with four modes to
choose from:
Crossover Mode (CH1=LPF, CH2=HPF): When selected, this mode enables a LowPass Filter on Channel 1 and a
HighPass Filter on Channel 2 at the frequency that you have chosen.
Note: This mode will automatically put the input mode into "Input Y".
LowPass Mode (CH1=LPF, CH2 = LPF): When selected, this mode enables a LowPass Filter on both Channel 1
and Channel 2 at the frequency that you have chosen.
HighPass Mode (CH1 = HPF, CH2 = HPF): When selected, this mode enables a HighPass Filter on both Channel 1
and Channel 2 at the frequency that you have chosen.
Bridge Mode (either LPF or HPF): When bridge-mono mode is selected, the crossover system still allows you to
select a LowPass or HighPass filter at the frequency that you have chosen.
For instructions on setting up the different crossover system settings, please see the "Get Started" section at the beginning
of this manual.
Peak ™ Limiters
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The Peak Clip Limiters provide your amplifier and system with higher performance and better protection. They are specifically
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tuned to work with this amplifier design and power-supply to achieve higher SPL with less audible artifacts while protecting
your loudspeaker investment. The limiters can easily be turned on or off from the front panel.
Note: The Peak Limiters are shipped in the "On" configuration from the factory.
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Instructions for Engaging/Disengaging the Peak
1. Hold the "Mode/Menu" button down for 3 sec until the LCD screen displays "Amp Mode <More>"
2. Press the "Next" button – The LCD screen displays "CH1 Clip <More>".
3. Press the "Mode/Menu" button and use the "Next" button to toggle between on/off.
4. Once you have made your selection, press the "Mode/Menu" button to confirm. When you confirm CH1 Clip
configuration, you are automatically taken to Ch2 Clip to configure either on or off. Once again, make your selection and
press "Mode/Menu" to confirm.
XLS Series Power Amplifiers
™ Limiters:
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Operation Manual