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Thread: opus for dummies guide?

  1. #1
    Constant Bitrate sanbas's Avatar
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    opus for dummies guide?

    I have searched around and read many different opinions for wiring the opus, as far as wire gauges are concerend. But i have not been able to find any threads without controversy. Can someone who is an expert on wiring the OPUS write a sticky guide for the opus w/pictures ? You would be doing many people a favor i am sure.

    This is my situation, my OPUS 150W just arrivied:

    - I am going to be using a MSI mega P4 2.8Ghz PC
    - I have already installed my 4 channel JL amp 2 months ago and its working.

    Now my questions:
    1) Can i use the same turn on wire (blue wire) for the opus that i am using for the amp? Would i just do that in series? and I dont have it connected to an ign wire its connected to the windshield washer fuse (which turns on if the car is at the "on", "acc", or "engine running" position.

    ** i have it on the fuse box b/c I dont konw how to access the ign wire and a some guides i read said you can use the fuse box and it works for me. If ign wire is better i'd rather do it that way but ill need guidance

    2) What is the green/white wire, i know its for "soft power" but have no clue where it goes? is it necessary?

    3) Ok for the Power (Red wire coming out of the OPUS), the OPUS manual says use "#12 gauge" dedicated to the battery. Now I have read people saying use 8 Gauge, if i were to use the 8 gauge do i just connect it to the 12 gauge coming out of the OPUS or do i have to get rid of the 12 gauge? I was wondering if going from 8 to 12 is bad? Plus i am using a distrobution block, is that going to be ok?

    Please the sooner i can get answers the sooner i can start, THANKS!!!

    if there is Anything else i need to know just throw in your own opus experience.

  2. #2
    Low Bitrate
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    I'd be interested in that guide too. Sorry don't know bout questions

  3. #3
    Raw Wave Laidback's Avatar
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    1, Should be ok as it's only a signal to tell the PSU that the ACC is on.
    2, G/W wire connects to the on/off pins on your system board, yes, it's necessary! And it must be connected the right way round.
    3, If Opus say and use #12 guage then that must be fine.
    3 1/2, Depends on what else is on your distribution box and the guage of wire to the box.

  4. #4
    Constant Bitrate sanbas's Avatar
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    hey thanks for the response! its a 4 gauge coming in from the battery to the distrobution block.

    Duh, i wasnt thinking about the green/white wire, its obvious now, thanks.

    I know there are more people with suggestions with all the opus users out there.

    thanks

  5. #5
    Constant Bitrate sanbas's Avatar
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    i sure would appreciate any OPUS related advice i can get before the weekend comes around and i start wiring anything up. Dont want to blow anything on my car.

  6. #6
    My man uses Levitra. Peoples's Avatar
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    i've just started playing with my opus doing a few tests. it seems once its running.....its a bad idea to disconnect the green & white wires from the motherboard and do a hard power off. I needed to do this because sometimes my system likes half start as soon as it gets power.....it wont post but the fans will spin. Anyway, doing this caused the opus to start blinking in series of 2, indicating a boot failure. Took me forever to find that PDF again, seems opus changed their links, however digitalww.com had it. After playing with it for several hours......i think I have all of my questions answered......the whole polarity thing with the mobo header pins is a *****.
    PC Components:
    Lilliput; XPC/FLEX mobo; 1.7 ghz P4 Mobile;512 DDR; 160 gb HDD; opus 150; slot usb dvd-rw
    My work log

  7. #7
    My man uses Levitra. Peoples's Avatar
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    oh, one quick question I do have, since i did not attempt this. Will the opus freak out if i were to tap into the green and white switch to create a new circuit with a momentary switch, to use to override the shutdown controller?
    PC Components:
    Lilliput; XPC/FLEX mobo; 1.7 ghz P4 Mobile;512 DDR; 160 gb HDD; opus 150; slot usb dvd-rw
    My work log

  8. #8
    Raw Wave Laidback's Avatar
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    Quote Originally Posted by Peoples
    Took me forever to find that PDF again, seems opus changed their links, however digitalww.com had it.
    The shop @ mp3car.com has a link for the pdf manuals - http://www.mp3car.com/store/product_...products_id=32

  9. #9
    Constant Bitrate KaiTech's Avatar
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    Quote Originally Posted by Peoples
    oh, one quick question I do have, since i did not attempt this. Will the opus freak out if i were to tap into the green and white switch to create a new circuit with a momentary switch, to use to override the shutdown controller?
    It might freak out if you power it down that way, and then try to power it up by using ignition.
    Why not put a switch on the ignition input (YELLOW or BLUE)? Works just as well, and won't screw you up.
    I'll spout simplistic opinions for hours on end.
    Ridicule anyone who disagrees with me,
    and generally foster divisiveness,
    cynicism and lower level of public dialog!

  10. #10
    ddn
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    Alright maybe this is all common sense to me, but not to others. Wire gauge issues are not that hard to understand. For simplicity and lack of a better explanation, think of wire sizes as the sizes of a hose. What is the point of having a 1/2" diameter hose if it just feeds into a 1/4" diameter hose? Well, usually there IS no point, but if you have quite a distance to go with the 1/2" hose remember that like a hose full of water, an electrical wire has resistance. In a hose its called pressure drop.

    Bottom line: the OPUS has 12AWG going into it, and they recommend 12AWG. This is all you need. Will running 8AWG from the battery to a short lead of 12AWG on the opus hurt anything? Absolutely not. Is there a potential benefit from using 8AWG especially over long distances? Absolutely yes.

    Clear?

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