Alpine CDE-163BT Owners Manual - Page 21
About the Crossover - pair
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About the Crossover Low range Mid range High range Crossover (X-OVER): This unit is equipped with an active crossover. The crossover limits the frequencies delivered to the outputs. Each channel is controlled independently. Thus, each speaker pair can be driven by the frequencies for which they have been optimally designed. The crossover adjusts the HPF (high pass filter) or LPF (low pass filter) of each band, and also the slope (how fast the filter rolls off the highs or lows). Adjustments should be made according to the reproduction characteristics of the speakers. Depending on the speakers, a passive network may not be necessary. If you are unsure about this point, please consult your authorized Alpine dealer. 2WAY mode Front high range speaker Rear high range speaker Low range speaker Cut-off frequency (1/3 octave steps) HPF LPF 20 Hz ---- 200 Hz 20 Hz - 200 Hz ---- ---- 20 Hz 200 Hz Slope HPF FLAT, 6, 12, 18, 24 dB/oct. FLAT, 6, 12, 18, 24 dB/oct. ---- LPF ---- ---- FLAT, 6, 12, 18, 24 dB/oct. Level 0 to −12 dB 0 to −12 dB 0 to −12 dB Low range High range (Different from actual display) 3WAY mode High range speaker Mid range speaker Low range speaker Cut-off frequency (1/3 octave steps) HPF LPF 1 kHz - 20 kHz* ---- 20 Hz - 20 Hz 800 Hz 20 kHz 20 Hz ---- 800 Hz Slope HPF FLAT, 6, 12, 18, 24 dB/oct. FLAT, 6, 12, 18, 24 dB/oct. ---- LPF ---- FLAT, 6, 12 dB/oct. FLAT, 6, 12, 18, 24 dB/oct. Level 0 to −12 dB 0 to −12 dB 0 to −12 dB * Depending on the response characteristics of the speaker, care should be taken when setting the response slope of the high range speaker to FLAT in 3WAY mode, as speaker damage may result (page 21). (Different from actual display) Level adjusting (0 to −12 dB) Output frequency range Slope FLAT Slope adjusting 20 Hz (Different from actual display) HPF cut-off LPF cut-off frequency frequency Notes • HPF (high pass filter): Cuts the lower frequencies and allows the higher frequencies to pass. • LPF (low pass filter): Cuts the higher frequencies and allows the lower frequencies to pass. • Slope: The level change (in dB) for a frequency change of one octave. • The higher the slope value, the steeper the slope becomes. • Adjust the slope to FLAT to bypass the HP or LP filters. • Do not use a tweeter without the HPF on or set to a low frequency, as it may cause damage to the speaker due to the low frequency content. • You cannot adjust the crossover frequency higher than the HPF or lower than the LPF. • Adjustment should be made according to the recommended crossover frequency of the connected speakers. Determine the recommended crossover frequency of the speakers. Adjusting to a frequency range outside that recommended may cause damage to the speakers. For the recommended crossover frequencies of Alpine speakers, refer to the respective Owner's Manual. We are not responsible for damage or malfunction of speakers caused by using the crossover outside the recommended value. Switching the 2WAY/3WAY system mode 1 Press the YSETUP and f at the same time. Note • In this case, the device will be muted. 2 Turn the Rotary encoder to select the desired system mode, and then press ENTER. Note • When the system mode is changed, the setting items for X-OVER are displayed. See "Adjusting the Crossover Settings (X-OVER)" on page 16 to change the settings. 3 After setting, turn the Rotary encoder to select DONE, and then press ENTER. "TURN ACC OFF ON" will be displayed. 4 Switch the ignition key to ACC OFF. Depending on the response characteristics of the speaker, care should be taken when you switch the 2WAY/3WAY system, as speaker damage may result. 5 Switching the ignition key from ACC OFF to ON. The change is saved. Notes • If you skip the 4th and the 5th steps, the setting results will not be saved and unit will return to previous mode. • While playing back music after the vehicle's ignition is turned off (STAY ON mode), you cannot adjust the 2WAY/3WAY mode (refer to "Setting the stay on mode" on page 26). 21-EN