Electro-Voice Speaker System owner manual Frequency, Hi-Pass/Lo Pass, Crossover Alignment Delay

Here the HiPass Output 2 Crossover is set to Linkwitz-Riley 24dB with the fre- quency set to 60.0Hz.

Linkwitz 24dB Curve

For detailed EQ plot im- ages please see page 45

Frequency

Frequency offers a selectable frequency range from 20.0 Hz to 20,000Hz.

Hi-Pass/Lo Pass

The DC-One Hi-Pass and Lo-Pass filters are determined by selecting the Type from the list of parameters, (see list above) and by choosing a frequency range between 20.0 Hz to 20,000Hz. (See above)

The crossover filter generally consists of a low pass filter in one channel and a high pass filter in the adjacent channel. This is where the frequency x-over filter’s Hi-Pass parameters are set. The Hi-Pass frequency parameters are linked to the corresponding Lo-Pass frequency parameter unless in Full Edit Mode or using the Configuration option. Please refer to the Configuration section of this manual for details on the effect different Configurations have on channel linking.

The Type parameter defines the filter characteristics of the crossover Hi-Pass

filter. Different slopes and filter responses (6dB, 12dB with different Q values, Bessel, Butterworth, Linkwitz-Riley) are available and the filter can be bypassed.

Again, the Hi-Pass frequency parameters are linked to the corresponding Lo- Pass frequency parameter depending on the Configuration that is currently being used. High pass frequencies are set with a pre-determined frequency that attenuates frequencies below (the crossover point). On the contrary, a Low Pass filter passes frequencies below the crossover point and attenuates those above.

Crossover Alignment Delay

To access the Crossover Delay screen, press the X-Overbutton found on the output processing menu. Subsequent button presses will toggle the display between OUT1 to OUT6. Use the <SELECT> button to navigate between the Crossover parameters.

Adjust the values of each parameter using the up/down VALUE arrows.

Delay - Use this parameter to compensate for physical offsets of the acoustic centers of transducers within a loudspeaker cabinet. For example, due to cabinet construction, the acoustic center of a high frequency transducer may be mounted behind or in front of the acoustic center of the low frequency transducer. The Delay parameter can align the audio signal between the multiple transducers within the loudspeaker.

Polarity - The polarity of the audio signal can be inverted using this control.

Unit - The user may select betwen time and distance display. Distances are automatically converted into delay times. This calulation also includes the influence of the environmental temperature based on the Temperature parameter in the Setup Menu.

Bypass - Setting this to On disables the Crossover Delay.

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