thanks for the prompt replied from all the sifus here.
i got 0 knowledge on ICE and planning to have some improvement on my sound system
so that, i am planning to install one underseat subwoofer for my ride (Vios NCP42)
fyi, my current setup: double din JVC HU and original speakers
Can you all recommend me which brand to go for with a tight budget of rm500 - rm600? i found some brands such as MBQ, America research, caliber n etc