Alpine INE-W977HD Owners Manual - Page 38

Adjusting the Ring Tone Level You can adjust the receive volume, during the call. Setting item: Ring Tone Level Setting contents: 1 to 6 (Initial setting: 3) Volume Setting You can change the volume of the sound heard when a button is touched. Setting item: Key Sound Feedback Setting contents: 0 to 6 (Initial setting: 3) Setting Audio Mute On/Off while Backing up The sound can be muted when the shift gear lever is set to the reverse (R) position enabling you to easily hear sensors, etc., while reversing your car. Setting item: Mute While Backing Up Setting contents: Off / On (Initial setting) Off: Does not mute. On: Mutes when the shift gear lever is set to the reverse (R) position. Setting the Microphone Effect Set this item when an iPhone 5 or later/Android smartphone with Android Auto App is connected. You can turn on or off the Microphone Effect. This setting influences Apple CarPlay/Android Auto mode. Setting item: Microphone EC / NR Setting contents: On (Initial setting:) / Off Default Sound Settings You can restore the Dual HD EQ*/X-Over*/Time Correction*/MX HD Level/Rear Speaker/Subwoofer/Subwoofer Level/Subwoofer Phase to factory settings. Setting item: Default Sound Settings Touch [Set], and the confirmation message appears. To initialize, touch [OK]. * The setting values that are stored in Preset 1 to Preset 3 cannot be initialized. About the Crossover 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. Subwoofer (LPF) Rear speaker (HPF) Front speaker (HPF) Cut-off frequency (1/3 octave steps) HPF LPF ---- 20 Hz 200 Hz Slope HPF LPF ---- 0, 6, 12, 18, 24 dB/oct. 20 Hz 200 Hz ---- 0, 6, 12, 18, 24 dB/oct. ---- 20 Hz 200 Hz ---- 0, 6, 12, 18, 24 dB/oct. ---- Level 0 to -12 dB 0 to -12 dB 0 to -12 dB Low range Slope adjusting High range Output frequency range Slope FLAT Subwoofer Level adjusting (0 to -12 dB) Output frequency range Rear speaker Front speaker 20 Hz (Different from actual display) LPF cut-off frequency HPF cut-off frequency 200 Hz • 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. • 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. 38-EN