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    mat3833's Avatar
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    powering a "car" amp from home power?

    so i just got the quote back for getting my Home Theater sub amp repaired and its almost as much as it would cost to buy a new one(aparently the magical purple smoke is REALLY hard to get back in the amp....). so i figured since i only need ~1K of power at 1 ohm it might be cheaper to get a car audio sub amp and get a power supply to run it. anyone have any experiance doing this?

    Matt







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    Re: powering a "car" amp from home power?

    I build computers all the time, so I used one of my old "chineese knock off" power supplies to power an old boss amp. It was fun but didn't get that loud. Probably because it's not meant to power a car sub and only delivers 12v @ 20 amps.




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    Re: powering a "car" amp from home power?

    I've ran them temp setups inside but they where temps because they involved a car battery and charger in the middle of my living room! for 1000rms you need a power source that will deliver at least 100amps of current and that's a good amount that won't come cheap!



    electrical: Optima yellow top X 2 big 3 in monster OFC 1/0g high output alt by maniac electrics
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    front stage amp: Rockford T600.2
    subs: 1 Sundown ZV4 12"
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    Re: powering a "car" amp from home power?

    Computer power supplies are rated at 50-70 amps on some good models, its if you want to butcher a good quality PSU tho



    ** NEW VEHICLE AND BUILD ** 2003 Jeep Liberty Sport
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    Re: powering a "car" amp from home power?

    Quote Originally Posted by JoeK View Post
    Computer power supplies are rated at 50-70 amps on some good models, its if you want to butcher a good quality PSU tho
    really 50-70amps continuous? whats one of those cost because even a large home 12vdc converter is only like 60amps before it goes protect and those things are kinda large and pricey I can't imagine what a unit that fit's into a comp and that does that kind of power would run you.



    electrical: Optima yellow top X 2 big 3 in monster OFC 1/0g high output alt by maniac electrics
    HU: JVC AVX-77 touch screen
    Front stage: RE XXX 6.5" comps
    front stage amp: Rockford T600.2
    subs: 1 Sundown ZV4 12"
    sub amp: Rockford T2500.1BDCP
    Enclosure: ported (by JayDubb757 )

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    Re: powering a "car" amp from home power?

    Quote Originally Posted by goingdef View Post
    really 50-70amps continuous? whats one of those cost because even a large home 12vdc converter is only like 60amps before it goes protect and those things are kinda large and pricey I can't imagine what a unit that fit's into a comp and that does that kind of power would run you.
    Just look around on newegg and look at the features tab, itll show you all of the lanes and the amperages. Youll be getting above the $100 range though, and they are trigger happy with variable loads like an amplifier



    ** NEW VEHICLE AND BUILD ** 2003 Jeep Liberty Sport
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    Clarion CZ702

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    Re: powering a "car" amp from home power?

    well i DO love my HT amp especially since i can run all of my sat speakers, my 2 center speakers, my 2 "freestanding" midbass speakers, AND my 2 6.5" tapped horns/2 8" subs. but honestly i dont need all of that shiz right now. i only have left front right front and center hooked up right now with 35W going to each 8" sub and it sounds **** good(FYI Klipsch speakers FTMFW! im tempted to frankenstein some of this **** in my car.) id love to push these ID8s to their limit, especially since on 35W and in a franken box they are seriously impressive.

    if i can get my hands on a 14.4V powersupply that can dump 50 amps i could run 350W to each ID8 and do pretty well. and i MIGHT be able to get my hands on a good solid computer power supply for cheap. that would leave the amp. only problem is space. i dont have room for a big amp. well that and i would have to make sure its clean power. would hate to fry a new amp...

    Matt
    Last edited by mat3833; 10-28-2012 at 03:04 PM.




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    Re: powering a "car" amp from home power?

    Quote Originally Posted by mat3833 View Post
    well i DO love my HT amp especially since i can run all of my sat speakers, my 2 center speakers, my 2 "freestanding" midbass speakers, ANY my 2 6.5" tapped horns/2 8" subs. but honestly i dont need all of that shiz right now. i only have left front right front and center hooked up right now with 35W going to each 8" sub and it sounds **** good(FYI Klipsch speakers FTMFW! im tempted to frankenstein some of this **** in my car.) id love to push these ID8s to their limit, especially since on 35W and in a franken box they are seriously impressive.

    if i can get my hands on a 14.4V powersupply that can dump 50 amps i could run 350W to each ID8 and do pretty well. and i MIGHT be able to get my hands on a good solid computer power supply for cheap. that would leave the amp. only problem is space. i dont have room for a big amp. well that and i would have to make sure its clean power. would hate to fry a new amp...

    Matt
    why not just look around for a plate amp or check on cl and see if you can find an old powered sub to yank the amp from?



    electrical: Optima yellow top X 2 big 3 in monster OFC 1/0g high output alt by maniac electrics
    HU: JVC AVX-77 touch screen
    Front stage: RE XXX 6.5" comps
    front stage amp: Rockford T600.2
    subs: 1 Sundown ZV4 12"
    sub amp: Rockford T2500.1BDCP
    Enclosure: ported (by JayDubb757 )

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    Re: powering a "car" amp from home power?

    Some plate amps are inexpensive as well



    ** NEW VEHICLE AND BUILD ** 2003 Jeep Liberty Sport
    2x SPLAudio DAD BD 12s
    2x SK-1500.1s
    Box 5 cubes @ 29hz
    XS Power D3100 & D2400
    Tenney 270A
    4x PowerBass 3xl 6.5s
    Clarion CZ702

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    Re: powering a "car" amp from home power?

    most plate amps dont come with a subsonic filter and actualy need to be mounted in the box. since i dont want to mount it in the box id rather just use a car amp. but i am considering goign the plate amp route. and ive been looking around on CL and ebay but every "powered" sub i seem to find doesnt have a big enough amp or they want crazy money for it.

    Matt




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    Re: powering a "car" amp from home power?

    I've tried the pc power supply route. It fried an oem hu. It wasn't a good psu but yeah. Diffcult. I want to try again though. The older the better. Single rail too



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