The Alpine 9883 is an aftermarket in-dash car stereo. In addition to playing standard CDs, the head unit can also play burnt CDs and MP3 discs. The Alpine 9883 allows you to make phone calls through the head unit via Bluetooth, and also has outputs for an amplifier and subwoofer. The head unit gives the user control over the subwoofer, as well as the bass and treble, allowing you to adjust your audio settings to your personal tastes.
- Skill level:
- Moderately Easy
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Turn the radio on and play a CD track from your iPod or the radio.
Press the Rotary button (volume knob) once to cycle through the adjustable sound modes. If a subwoofer is connected, the order will be Subwoofer, Bass, Treble, Balance, Fader, Defeat and Volume.
Turn the rotary knob while the mode is displayed to adjust the setting. For example, to increase the bass level, turn the knob to the right, and to decrease the bass level, turn the knob to the left. When you are finished adjusting the settings, do not press any buttons for five seconds. The stereo will save your settings and return to the home screen.
Press the "A.SEL" button, located on the bottom right of the rotary knob to fine-tune the bass and treble levels and frequencies, as well as to adjust the high pass filter. Repeatedly pressing the "A.SEL" button will cycle through the modes.
Press the "Band" button repeatedly to adjust the centre bass frequency. Have "Bass" selected in the "A.SEL" mode. The available frequencies are 80 Hz, 100 Hz, 200 Hz and 60 Hz. Turn the rotary knob left and right to emphasise or weaken the bass level. Press the "Source" button to adjust the bass bandwidth, using the rotary knob. Turning the knob to the left will narrow the bandwidth, while turning it to the right will widen it.
Press the "Band" button repeatedly to adjust the treble centre frequency. Have "Treble" selected in the "A.SEL" mode. The available frequencies are 10 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz and 10.0 kHz. Turn the rotary knob left and right to emphasise or weaken the treble level. Hold the "Esc" button for two seconds to return to the normal receiver display.
Turn the rotary knob left or right to adjust the high pass filter. The available frequencies for the high pass filter are 80 Hz, 120 Hz and 160 Hz. The high pass filter is used primarily when a subwoofter is present, and allows you to adjust which frequencies are sent to the subwoofer and which are sent to the speakers.
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