Non-Fader Phase - Fujitsu Ten Eclipse CD4000 Manuel D'utilisation

Various Settings
When this deck is in normal mode, it corresponds to basic speaker systems which comprise front
speakers, rear speakers, and subwoofer. In such cases, the crossover can be used to apply the
HPF to the front and rear speakers and the LPF to the sub-woofer so that the sound from all
speakers merges properly. In addition to the 4 speaker system, the adjustments can be made to suit
speaker system where the front speaker, rear speaker and non-fader output can be switched
between Hi, Mid or Low output and the speakers can be combined according to each range (treble
range: tweeter, mid range: mid, bass range: woofer) to provide 3-way playback. In this case, the
crossover function can be used to adjust the playback ranges so that the HPF is applied to the
treble-range speakers, the HPF and LPF is applied to the Mid-range speakers, and the LPF is
applied to the bass-range speakers so that the sound from all speakers merges properly.
Bass range
(woofers)
20Hz

Non-Fader phase

The sounds that are output from woofers include sounds that are in the same frequency ranges that
are output from the front and rear speakers, and under the various conditions that can occur inside
vehicle compartments, some of these sounds may cancel each other out. This phenomenon can be
eliminated by changing the phase of the woofer.
The phase of the woofer can be set to normal timing (in which the output timing between the front
and rear speakers and the woofer is the same) or reverse timing (in which the output timing between
the front and rear speakers and the woofer is different), depending on the vehicle compartment
conditions.
40
Mid range (Front and rear speakers)
fc(LPF/HPF)
80Hz, 100Hz
20kHz