velodyne82 said:
hi sifus,
wat is the fuse value to use if my amp can pump out 60w(rms)/ch (120w/ch max)??
and wat value to use for my hu. it comes with a 15A fuse at the rear.
do i hav to use relay for my entire ICE???
pls advise....cheers
how many channels u have in ur amp? 2? 4?
just do rough estime i.e P = IV i.e P=power, I=current & V=voltage.
say its a 4-channel amp i.e 60w x 4 = 240W
so I = P/V = 240 / 12 = 20A.
so any 20amps fuse or higher will do. It is not meant to protect the amp but to prevent a short circuit from burning ur car eg. if the power cable suffer insulation damage and touch the car body which is -ve terminal.
you only use relay if you are going to use more than 2 amps. It is mainly due to current supply from the HU remote turn ON may not be sufficient to switch ON more than 2 amps.
since ur HU has a fuse already, no need to add another fuse. It will be overkill.
dont get too exited with fuses. and read more about it since i think u have a wrong understanding about its ACTUAL purpose.
cheers.