Table of Content
Both amps were set to 20V output , class AB is drawing 17.6A and class D is drawing 11.8A . This means that by using same power supply you can get more power with class D amp. If you however still choose car amplifier then continue reading as i will try to provide as many information about it as i can. I'm a car audio fanatic and professional electrical engineer.
Modifying ATX power supply for 14V output can be done if you have some electronic knowledge, but if you dont then you shouldn't be opening one. They contain capacitors that are charged up to mains voltage and can be deadly. For this reason i'm not gonna go further, if you are good with it you wont have any problems with it since its as easy as changing few resistors. On last 2 pictures you can see difference between GZTA 4.120mk2 and GZTA 1.2000mk2 .
Choosing a power supply for car amp use
Or for using car audio in your home, then I would suggest using a 100 watt solar panel mounted on your roof or outside a window in the sun close by where you will be listening. And a solar battery charge controller hooked up to a 100 amp hour deep cycle battery. You can find the solar panel & charger controller for around $125 on eBay. Add together power of all channels, for example if your amplifier is 2x250W you get 500W, if you have monoblock 1x500W or just bridge 2 channels use power that its rated at.
A typical home stereo system is designed to produce power of hundreds of watts, which may lower the efficiency of car subs when used in a house. If you are looking to activate your amp without a remote wire, the first thing you will need to do is to locate the power switch on the amplifier. Many amplifiers have a power switch built into the main unit, so it should not be too hard to find. Finally, using an adapter may exceed the amperage safety ratings of the wire, causing an excessive electrical draw and potential fire hazard. Although it may seem convenient to wire a car stereo to a house outlet, it is not recommended due to the potential risks.
Can I use a car amplifier in my house?
This weak signal is then amplified by the amplifier circuit, which is powered by the power source. Unfortunately, noise is a problem with car amps despite them being designed to prevent it. It’s also true that home stereos and amps are known to sometimes create “ground loops” between different electronic components via the RCA cables. Run the other end of the wire to your speaker’s input port, which will either be a clip or screw on the back.
It comes in many different power ratings, and a decent one should have enough power to run your car amp. Look for the port with a screw on the back of the amplifier labeled “GROUND” or “COM,” which is usually right next to the 12 V port. Push the exposed wire underneath the screw, and use a screwdriver to tighten it down. Make sure the wire doesn’t slip or pull out if you likely tug on it. If the fan still doesn’t work after checking the wires, then the power supply may be faulty. You can also cut the wires and wrap the exposed ends around one another to splice them.
Connecting Car Subwoofer and Amplifier Together:
Second, be sure to use the proper size and type of wire when making your connections. If you would like to tap your rear speakers into subs, it can be done fairly easily with a few materials and a bit of know-how. First, you’ll want to purchase a stereo power amplifier and line level converter.
Use the second 2 in (5.1 cm) piece of 18-gauge wire you cut earlier to connect to the remote port. Slide one end of the wire under the screw on the 12 V port and retighten it with your screwdriver. Feed the other end of the wire underneath the screw labeled “REMOTE” and secure it in place. If you want to make a true well made power source for testing car audio amps and preamps at home.
The very first downside of using your automobile subwoofer in your home is that if done incorrectly or if something goes wrong, you risk blowing up your entire system. The only negative is that you will have to spend a significant amount of time completing this task. Buying all of the necessary equipment to power a car woofer is an expensive task. In order for the circuit to properly function, the amount of electricity flowing through must be precisely controlled. If too much current is passing through, the circuit is at risk of becoming damaged. Connect the components together with the appropriate wiring.
Check the colors for the PS-ON and COM wires on the power supply’s guide. Look for a numbered table that lists the main wire outputs printed on the side of the power supply or in its manual. Find the sections that are labeled “PS-ON” and “COM” since they are the wires you need to connect. Typically, the PS-ON wire will be green and the COM wires will be black, but it may vary based on your power supply. Check the specifications on your car amplifier to see if it requires a different voltage or amperage input. SLA or Gel types are good for this since they are mostly closed and have better discharge capabilities .
You can use that amplifier and sound system at your home without any effort. So, there is no need to worry about losing your favorite sound system or amplifier. You wonder, can you pull out your car amplifier and sound system and play t in your home. There can be several different conditions where you may want to use your amplifier in your home.
Now, you will be able to play songs on your amplifier after performing all these steps. This will work as an always turn on feature for your amplifier. If you are a computer specialist, then you will know about the wire, which gives power to the motherboard.
Dont run 1 or 2 ohm speakers on amplifier that doesn't say its stable at those impedances. Check voltage on power inputs of your amplifier, if it drops under 10-11V it may trigger undervoltage protection on your amplifier. Some amplifiers have multiple colors of LEDs to indicate so check your manual.
You should carefully connect wires when installing a car amplifier in your home. Furthermore, house amps typically have different wiring connections than car amps, making them incompatible with car wiring harnesses and circuits. As a result, using a house amp for a car subwoofer can potentially result in damage to both the amp and the subwoofer, so it is best to avoid this practice.
PC ATX and Server power supplies offer a lot of power and they can be cheaper than other solutions. This means you are gonna get a bit less power than your amplifier is rated at (some are rated at 12V and at 14,4V, some only at 14.4V). Other alternative is to get 12V power supply for LEDs or other things. These have small potentiometer so you can adjust voltage a bit higher, usually from 11-14V. Hello everybody, recently i bought car amplifier for repair and decided that im gonna replace my Sony XM-4020 that i have been running as my subwoofer amplifier for a year now. I took this opportunity to write instructable on how to properly hook car amplifier for use inside of your house and what you should be careful about.
7.Now, take the small LED and make two small holes in the cardboard, one on each side of the slit. 6.Thread the positive lead of the battery through the hole and tape it in place. 5.Now, take the 9V battery and make a small hole in the center of the top of the cardboard.
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