Operation Manual; Integrated Processing Features; XLS Series - Page 8

XLS Series 

Power Amplifi ers

Operation Manual

page 8

PureBand

™

 Crossover System:

The PureBand

™

 Crossover System provides a variable state Linkwitz-Riley 24dB/octave fi lter allowing you to choose a point 

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 fi lter 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

X

™ Limiters

The Peak

X

 Clip Limiters provide your amplifi er and system with higher performance and better protection. They are specifi cally 

tuned to work with this amplifi er 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

X

 Limiters are shipped in the “On” confi guration from the factory.

Instructions for Engaging/Disengaging the Peak

X

™ Limiters:

  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 confi rm. When you confi rm CH1 Clip 

confi guration, you are automatically taken to Ch2 Clip to confi gure either on or off. Once again, make your selection and 
press “Mode/Menu” to confi rm.

Integrated Processing Features