Alpine PXI-H990 owner manual 46-EN

Settings/Adjustments

Crossover adjustment/Switching the phase (continued)

19To adjust another channel, after pressing

6 (RTN), repeat steps 8 to 18.

20Once the settings are completed, press and hold F • SETUP for at least 3 seconds.

•Press 6 (RTN) or RETURN on the remote control in the setting mode to return to the previous item.

Hint for adjusting the subwoofer

•If the subwoofer is installed on the rear deck, setting a gentle L.P.F. slope (for example –6 dB/oct.) makes the sound localization more to the rear. This can also affect the acoustic localization of the front.

Hints for adjusting the high range

•Depending on the speaker, inputting low frequency component signals (about 2 kHz or less) with the H.P.F. adjustment could result in distortion. If so, set a steep slope (for example –30 dB/oct.).

When doing so, adjust so that the mid and high range sounds do not separate.

•Normally use with the L.P.F. off. If the high range is too strong, we recommend adjusting for a gentle slope.

Hint for adjusting the low range

•When a subwoofer is connected and you are using a speaker with a low range of under 10 or 12 cm (3-15/ 16" or 4-3/4"), setting the low range H.P.F. to “OFF” can result in distortion when low frequency components are input.

If so, set the H.P.F. slope to a value suited for the speaker’s frequency response.

Supplement See page 51 for supplementary information.

46-EN