Alpine PXA-H701 Car Stereo System User Manual


 
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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 speakers frequency response.
NOTES
In order to protect the speakers, if Tweeter is selected
in Front 1, there is no filter OFF (slope OFF) setting
for H.P.F.
For the same reason, the subwoofer low pass filter
cannot be turned off (the slope cannot be set to
OFF.)
When the speaker is set to the OFF mode, the X-
OVER for that speaker is ineffective. Refer to
Setting the speakers (page 4).
Check the playback frequencies of the connected
speakers before adjusting.
After making the settings, we recommend storing
them in the memory. For instructions, see page 28.