Eclipse - Fujitsu Ten CD4000 manual Non-Fader phase

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		Mid range (Front and rear speakers)
(woofers)
20Hz		20kHz
	fc(LPF/HPF)
	80Hz, 100Hz

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.

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