|01-01-2013 08:06 PM|
i do the same, but everything, including the laptop, came from the local dump e-waste bins. its amazing what one can find that others see as garbage
|12-31-2012 03:10 PM|
At work, we had a 12 volt power supply that powers a 20 year old car stereo. for speakers we use some that were out by the curb on trash day.
People would comment about how great our sound system sounded.
About a year ago, we wanted to upgrade a little. We have all of our music stored on the computer. In order to play the music through our sound system, we had to get a more modern car stereo that had a jack to plug in the cable coming from the computer. We now enjoy music with no comercials
|12-29-2012 10:34 AM|
|sqzbox||Have you tried a noise filter between the hot wire and the radio? Radio shack has them and a few truckstops.|
|12-29-2012 10:24 AM|
That is a really cool setup for a garage. I personally keep mine cheaper and simpler:
I keep all of my music stored on my computer and run the computers sound through a vintage tape/radio stereo receiver that I picked up at goodwill for about $10. You can get lucky and find some pretty powerful receivers for cheap.
I just run the audio out on the sound card of the computer via a 3.5mm stereo jack/stereo RCA cable. The stereo RCA cable plugs into the aux in on the receiver and the receiver powers my speakers in the garage. Sound comes out of a set of speakers each equipped with 2x12" drivers with a 4" mid and a 3x7" horn tweeter. Got them for $50 at goodwill as well. Gets loud enough for my neighbors to enjoy Iron Maiden with me if I want to be "that guy" when I'm working on my '65 and I don't have to fiddle with any cd's or ipods or any of that junk. I just play it through winamp on the computer.
|12-29-2012 09:57 AM|
|gow589||I use computer speakers. They have built in amps and you can plug in just about anything. Often you can find pretty descent set ups for under $50.|
|12-29-2012 09:29 AM|
reason for the change, no rca/ubs input, for ipod
|12-29-2012 08:55 AM|
|12-29-2012 08:54 AM|
You can get rid of the hum from inverters by adding a couple large capacitors to flatten out the "ripple" in the half sign wave DC that it produces. Manufacturers do this for sound system quality power supplys.
I have a Radio shack 12 volt converter that is about 50 watts (12 v X 4.2 amps) and it has caps in it. The last stereo I hooked to it for testing was real quiet in its static condition ( on but with no signal to drive the amplifier : static condition )
50 watts may not be enough to support the stereo you have and may cause "clipping (like a brownout) in the system.
I have used freebie stereos from the junker cars I have had in the past years,at times I have used a small battery charger and a car battery to run it, but it is hard on a regualer battery.Deep cycles work well, but I dont usually run across one of those, at least for free
You can build your own power supply with a transformer, a rectifier setup and some big capacitors.
|12-29-2012 12:43 AM|
I got a surround reciever off ebay for 63 bucks, add an old c/d player and golden, as you already have the speakers.. hell a rca plug to a ipod or mp3 player cable is 10 bucks..
any inverter will add noise(hum) to the sound as they are not made for the power needed,(at least the cheap ones)
my 75 watt per channel surround sound (5.1 channel) was 63 bucks shipped, my ipod cable was 10. my c/d player was free I have a few extras now that dvd/bluerays play c/d's
and old car speakers..
and a senhizer(sp?) wireless headphones, for the burning the midnight oil ,
ebays your friend here.. my radioshack reciever will be plenty loud.. and last forever and for 63 bucks.. deal..
|12-28-2012 09:17 PM|
You could just buy this and plug it into a wall outlet.
( And save money )
Sony MHC-EC909iP Mini Shelf System MHC-EC909IP B&H Photo Video
|12-28-2012 07:56 PM|
|Mach1460||Good eye on the a/c ! I didn't notice that, i mostly just used that pic as a reference. Ill stop by radio shack and see what they have.|
|12-28-2012 07:51 PM|
|Oldguy48||No, that won't work. The device in the pic says it's output is AC (alternating current). You'll need a power supply with DC output (direct current). You might be able to find a suitable power supply at Radio Shack, or as you mentioned, computer power supplies usually have a 12V DC output. You just need to ensure the power supply you use will handle the required current of the head unit. And it would be a good idea to wire in a fuse between the power supply and the head unit for safety reasons.|
|12-28-2012 07:20 PM|
|Mach1460||could this work? it says "for 12v halogen lights only" splice the 120v side into a standard home outlet plug in and the 12v to the head unit?|
|12-28-2012 07:04 PM|
Garage Stereo/Car system..
Didnt know if Ishould post this here or in the Electrical but I was reading on a guy who used a Cd/mp3 head unit out of a car and mounted it in the wall of the garage then just ran wires to speakers (with an amplifier of course) and thought it would be a cool and cheap idea for my garage. Ive seen 120 to 12v
inverters, but I also read something about using an old computer power cable...? Anyone heard or done such a thing? I have 4 rockford speakers and a JBL subwoofer sitting in my attic, I could find a decent aftermarket head unit for under 100 im sure and an cheap amp off craigslist probobly also..
Thought it would look cool mounted in the wall next to the garage door openers and the thermostat