Focal Inside Citroën C4 ACTIVE 6.0 (2004 – ) wifi Phase Shift and Subsonic settings

Phase Shift and Subsonic settings

dirt and debris

The result: more bass

and an adjustable low-pass filter from 40 to 120 Hz

Focal Inside Citroën C4 ACTIVE 6.0 (2004 – ) wifi Phase Shift and Subsonic settingsFocal Inside Citron C4 ACTIVE 6. 0 (2004 ) Give your audio system a new lease of life with the Focal Inside ACTIVE 6. 0 pack, dedicated to the Citron C4 (all generations since 2004) . This complete kit replaces the front and rear speakers, and integrates an ultra compact 4 channel digital amplifier , for a clear, dynamic and much more lively sound than the original. Thanks to a plug & play design and a suitable wiring harness, installation is quick,