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Thread: Budget Jeep Install

  1. #11
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    Quote Originally Posted by psykopyro
    hmm.. no amp... :-)

    stupid cheapo parents :-)
    wow, nice kid

  2. #12
    ITL
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    no joke, you definitely need to search around...

    and the comment about 50x4 written on the front of the radio meaning each speaker gets 50 watts...that's not all the info you need.
    If it says 50x4 on the front, this is most likely PEAK power. Peak power is the most power a speaker will get in a short "burst" of highs or low notes. The amp in the headunit cannot provide this 50watts continously. PEAK power is arguable. More importantly, you should go by RMS power. RMS is the amount of continous power the headunit's amp can provide.

    For example, take a Clarion radio and an Alpine. Both may list 50x4, but the Alpine could be much louder. Turns out a Clarion radio I purchased a couple of years ago had an RMS of 17x4. This was not loud at all compared to the Alpine's 26x4 RMS. I would look for mid to high 20s at the very least for your RMS power rating.

    Oh yeah, and make sure you get an aux input- this will save you much trouble when integrating the audio from your carpc.



    if you get a proper power supply such as an Opus, Carnetix, or M1-ATX, you won't need to lug around a second battery. These power supply not only provide 12V power with the AC conversion, they also regulate the power. Car power is a very rough environment for something as sensitive as a computer. Also, in these power supplies are startup and shutdown controllers. Not to mention that some of these, such as my M1-ATX, will monitor your battery level and cutoff power to the PC if the voltage drops below a certain level, say 11V.
    CarPC #3: 99% Complete
    Pentium M 1.7Ghz, 1GB DDR2 RAM
    DVD/CD-RW installed in dash below monitor
    OEM LCD relocated for 7" Touchscreen
    Wi-Fi, GPS, PS2 controllers...
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  3. #13
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    Quote Originally Posted by dmurray14
    wow, nice kid
    lol i was kidding, i'm very grateful i'm getting their car

    but about that diagram, which one is the actual car battery under the hood?

    so what you're saying, ITL, is that a second battery isn't really neccesary?

  4. #14
    ITL
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    that's exactly what I'm saying...I have my power supply set to the following:
    -sends signal to mobo to turn off 5 seconds after ignition goes off
    -leaves power to the 5V rail for 2 hours which keeps my USB devices alive for that long.
    -I've never had a battery issue. Search around, most people here that have proper setups probably haven't had any issues either. As a matter of fact, I've left my car for a week on two separate occasions, and the battery was fine when I came back.

    My buddy has his Mac mini in his 350z setup to where the power is never completely cut off...he left his car for 4 days and it still cranked when he got back.

    Search around for more info...plenty of people use inverters to convert 12V to 120V and then just plug in like you would to the wall; however, there are more cons about doing this.

    Do it right the first time. You won't have to worry about noise in your audio lines created by interference from the inverter. You won't have to worry about inefficiencies and noise created by the conversion of DC-AC-DC power. Plus, you'll get regulated voltage and startup/shutdown control. I picked up my PSU for about $80. It's well worth it, I promise you.
    CarPC #3: 99% Complete
    Pentium M 1.7Ghz, 1GB DDR2 RAM
    DVD/CD-RW installed in dash below monitor
    OEM LCD relocated for 7" Touchscreen
    Wi-Fi, GPS, PS2 controllers...
    500+ full albums
    4,000+ video games
    music videos, movies, & more!

    old carPC

  5. #15
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    OK well thanks for all the help you've provided!

    would you reccomend buying a used opus on ebay?

  6. #16
    ITL
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    Research to see what others have done and decide which power supply would best fit your needs...

    Like I said, I went with the M1-ATX PSU. The mp3car.com store has pretty good prices. Their customer service is pretty good, too.
    CarPC #3: 99% Complete
    Pentium M 1.7Ghz, 1GB DDR2 RAM
    DVD/CD-RW installed in dash below monitor
    OEM LCD relocated for 7" Touchscreen
    Wi-Fi, GPS, PS2 controllers...
    500+ full albums
    4,000+ video games
    music videos, movies, & more!

    old carPC

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