and that 6x150 watt amplifier... come on, you dont believe that its that strong, do u ??
lets see.. 6 x 150 = 900 Watts
this means that the amp should be powered with 900Watt from your battery, assuming that it has 100% efficiency. Most amps have about 60% efficiency, meaning that if you supply 1000 watts for power input, you can only get 600watts at your speakers. the rest is converted in heat.
Anyway lets assume it has 100% efficiency
Still with me? Good. We said that it needs 900watt for power, since our battery is 13,8V (engine on) the electrical current that should power our amp should reach 900 / 13.8 = 65.2A
I dont think that you will find any 65A fuse in your fuse box
(Considering the amp's real efficiency, the electrical current needed should be almost double than 65A
And if you ever listen a real 2x150Wrms amp in your car, your ears wont be able to handle that power, believe me.. imagine a 6x150!!!
Same is about head units: 4x50w my arse!!!!
no way with a 10A fuse they have, sorry guys, its all marketing tricks.
10A x 12V = 120Watts for input ( --> 72watts at the speakers, thats the 60%. So we have 72 /4 = 18watts on each speaker), where does it find the rest power... Not to mention that from those 120watts, the lightning and electronics and mechanics (the cd spinning moteur for example) needs power to work