Car Stereo to In-Home Conversion
Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=14401
Printed Date: May 07, 2025 at 11:41 AM
Topic: Car Stereo to In-Home Conversion
Posted By: chip_hodges
Subject: Car Stereo to In-Home Conversion
Date Posted: June 03, 2003 at 1:08 PM
I have a Pioneer In-dash CD Player, 4 - Cerwin Vega 6x9s, a Cerwin Vega 10" Sub, and a Clairon Amplifier that came out of my old car. I don't want to install these items in my new vehicle. I would like to set this equipment up to provide a nice system in my shop at home. Is there a power adapter available (or other possible means) that would allow me to power the CD player and Amp off of a 110v household outlet or is this just a dream (which would mean that the equipment is useless outside of a vehicle)? Thanks in advance for the help.
Replies:
Posted By: robHI
Date Posted: June 03, 2003 at 1:55 PM
buy a power supply
Posted By: MielGibson
Date Posted: June 03, 2003 at 3:02 PM
You can use a car battery charger but you might have to make some mods to it, or, go to a car audio shop and ask them what kind of power supply they use to demo their products and where you can get one.
Posted By: yodo
Date Posted: June 03, 2003 at 3:29 PM
Im not 100% percent sure but i think that computers feed on 12v. If so, find on old unwanted computer (everybody has one) and rip out the converter. Test each wire with a multimeter, hey presto!
Posted By: mezz64
Date Posted: June 03, 2003 at 4:48 PM
Can it be done? Yeah, but the cost is usually high for a good one. To run all that stuff you will need at least 20-40 amps. Take a look at this link...not the best brand but it will work. https://www.partsexpress.com/pe/showdetl.cfm?&User_ID=13369377&St=2195&St2=79844180&St3=52349481&DS_ID=3&Product_ID=15463&DID=7------------- - John
Posted By: accord17
Date Posted: June 04, 2003 at 9:13 PM
I was thinking of doing the same thing, HOWEVER, i was just going to power ONLY my amp and use my stereo as the music source. I think that would take ALOT less power and work better but i'm not sure how to do even that..
Posted By: mezz64
Date Posted: June 04, 2003 at 9:21 PM
actually the amp is the component that requires the most power. A typical HU only uses 10-15 amps while most small amplifiers are at least 20 amps.
-------------
- John
Posted By: Rortec
Date Posted: June 07, 2003 at 11:49 AM
mezz64 wrote:
actually the amp is the component that requires the most power. A typical HU only uses 10-15 amps while most small amplifiers are at least 20 amps.
Indeed, just look at the fuse in the given component for a rough estimate.
Posted By: Orang
Date Posted: June 17, 2003 at 7:13 AM
The alternatives: 1. Use a computer power supply - depending on the model, it can supply 25 to 30 amp. 2. Make your own power supply. Get at 30 or 50 amp transformer (primary 120v secondary 12v) and buy 4 diode (match the amp) and 1 electrolit capacitor (4700uf 12v), then bridge the diodes and use the capacitor as a buffer. Basically is the same as the first figure on this link: https://neutrino.d.umn.edu/phy3061/lab04.html Read the warning about working with AC "line" if you decide to do this. I would say first alternative is way cheaper but less fun.
Posted By: MielGibson
Date Posted: June 18, 2003 at 10:34 AM
About the capacitor, it should be at least 25 volts, not 12 volts.
Posted By: fakepete
Date Posted: June 18, 2003 at 2:17 PM
When you rectify 12VAC you end up with closer to 17VDC because 12 VAC is an RMS value. The peak AC voltage needs to be closer to 12 volts, so you would need to use a transformer rated for 9 to 10 volts AC, which would give you a 12.69 to 14.1 VDC rectified output.
Posted By: Orang
Date Posted: June 18, 2003 at 2:31 PM
Actually 12V Capacitor will make the voltage around 16VDC to 17DC unloaded. It should be fine for this application.
Posted By: MielGibson
Date Posted: June 19, 2003 at 6:28 PM
I disagree.
When designing power supplies and choosing a capacitor, you have to consider the voltage input. It's never a good practice to feed 12 volts to a 12-volt capacitor.
Posted By: fakepete
Date Posted: June 21, 2003 at 8:53 AM
Orang] wrote:
Actually 12V Capacitor will make the voltage around 16VDC to 17DC unloaded. It should be fine for this application.
Could you explain how and why there would be a voltage increase from a capacitor? I think you might need to refresh your memory on AC and DC theroy.
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