Depending in what part of the world you live where you can get one, I have used a car battery charger to do this. To add to Moab's comment, using a battery with a battery float charger on it would work perfectly for your needs.
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It would keep the battery charged, plus you wouldn't have to worry about the charger not being able to provide enough power for the stereo. The PSU is the safe way to go and its portable.
You can get them cheap these days or even free.
Paulster2 floating a car battery while using a proper float charger will make the car stereo go well. BUT if the stereo draws more than the charger when its playing loud you are draining the battery.
When the stereo is not drawing much like when it is in standby the battery will charge. This means that the car battery is charging and discharging or cycling.
Can you hook up a car amp to an outlet
When there is significant cycling the car battery wont last as long as it would in its float life. If your float charger is grunty things will be Cam. What country are you in?
Different countries have different wall outlet connector anp. Autistic 1, 8 Is there some kind of a wall adapter mc dating can be used or do you need to hunt for the various wires and connect them to a nema plug The OP lives in New Zealand.
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A wall wart would be unlikely to produce enough current. Gotcha, I was reading your post and since I'm not as electrical friendly with a huge knowledge base such as yours it's a bit Greek to me. I wouldn't be able to do it based upon your post due to my lack of knowledge.
That non paying dating websites said, I'd like to take some of my old car stereos in my garage and put them to use Is there way you can simplify and break your answer down into a general DIY howto?
If I'm asking for too much, I understand.
Thanks, Autistic for the response. Good point about the necessity for constant power. Talking about switchmode vs linear power supplies is definitely over my head as far as electricity goes, can you outleh more? Do you think something like this might work? This makes them easy to move back and forth between your home and car.
Just unscrew the terminals, unmount the amp, and you're off. To connect your amp in the house, buy the free gay dating tucson gauge of wire you use in the car. Most installations use red for the "hot" or positive wire, and black for the negative. If your wire is larger than the power supply's terminals can accommodate, crimp or solder banana plugs to the wires at that end.
For added safety, you might also install an inline fuse on the red wire. Use the same amperage as the amp's fuses.
Most home stereo speakers are rated for 8 ohms of impedance, or electrical resistance. Most car amplifiers are rated for 4-ohm ti.
You can use 8-ohm speakers without any problem, though they won't put out as much volume. Boxed car speakers are your best choice. If amp amplifier is rated for 2-ohm speakers, use those to get hook volume at any power setting. Your you sensitivity, expressed in decibels, is another factor. Every 3 dB of sensitivity doubles your speakers' volume, so speakers rated at 90 dB will generate twice the volume of a set rated at 87 dB. Connect an MP3 player or other audio source to the amplifier.
Turn on the power supply, adjust the amp to a low volume setting, and power it up. If you hear a loud outlet, that means can plugged into car outlet with a bad ground.