Installation a car radio at home

Installation a car radio at home

I've got my previous car radio and I want to make a little installation to be able to use it at home.

I need 12V DC but the problem is with the Amp! How many A I need? There's some cost effective adaptor that pull out 12V DC with 4A, is it enough?

The specs of my radio are:
14,4 V DC (11 to 16V allowable)
Max power output: 4x45W

Re: Installation a car radio at home

No, it's not enough. If the amp is 4 by 45 Watts (peak), then the total peak output power will be 180 watts. At 12 volts, that's 15 amps peak. That's the peak current output to the speakers - the peak current into the head unit will be higher still (the amplifiers are not 100% efficient). You're looking at 20 amps input (peak).

However, the head unit will probably never be able to deliver 45 watts, so a 15 amp supply should be just fine. Make sure you use a fuse between the power supply and the head unit.

What i've seen ppl do... is have a car battery... and hook it up to a car charger @ home... now you can hook up everything 12v... hu speakers amps and subs.. no problem

That's a good idea ! But car batteries are full of toxic stuff and I don't really want to have one in my small appartment. Maybe I can install it outside?

But for the price of a battery plus the charger I can probably get a good 20A adaptor from my 110V plugs.