so, you have a computer PSU youre using to connect to car audio stuff that you want to use in your home, right?Hi,
do you connect the amplifier to the 2 jacks (RED-WHITE) behind the radio and the sub do you connect it to the amplifier?
having a 250w psu is enough for sub amplifier and a 2x 60w speakers?
car radio aiwa 40Wx4
first thing you need to know is that you need to get away from the watt ratings of a psu if youre using it outside of its intended purpose. Computer PSUs output voltage and amperage. Typically all PSUs will output 3.3, 5 and 12 volts. You want to ignore the 3.3 and 5 volt wires. The 12 volt wires are usually coming from a singular transformer, just split into multiple wires so that the molex plugs they connect to can evenly distribute the power where it needs to go. You arent using it for that anymore, so youre best off just cutting the molex off and summing them on something metal and insulated as to avoid sparks etc, but still get the full amperage you can from the PSU. If you dont do this, youll run the risk of trying to pull too much current thru tiny ass wires and thereby heating them past the point where their shielding is designed to protect them at, it melting or burning, then FOOM, fire...yes, i have already connected the radio to psu 250W with a 60W speaker front right
decks will only pull about 10 amperes even at full tilt, hence why they are fused that way. The yellow ones are usually +12v and the black ones ground. Blue and red are usually 3.3 and 5 respectively. A cheap DMM will help you with determining which are which beyond the color coding i provided Get a fuse container and sum them all up on the post in it, find out what amperage the psu can put out and fuse to a hair below that. E.g. if it says itll put out 4 amps, fuse it to 35. The 500 watt psu should put out around 70 or so, but the diagram on the bottom of the unit should tell you what kind of power it is capable of.thank you
however I'm not going to connect amplifier and sub for now because I imagine 250W are few.
it would take at least 500W. correct?
(omitting for a moment amperage and voltage)
"you are therefore better by cutting the molex and adding them on something metallic and isolated to avoid sparks, etc.,"
you could send me a picture and kindly tell me how to do and which wires to cut
the 12V I took from the largest molex (24 pins), the other molex are free are not connected to the ground.
until now using the low volume radio there have been no sparks or problems
on the radio, ditch the orange and blue. cut them and cap them. red and yellow together to the +12v (black and yellow) and black to black.psu is leaned on the wood momentarily and the cables are insulated and free
so what should I do?
radio cables :
-blue _antenna remote
it says on the sticker that the yellow is the 8 amp and the yeloow/black is the 14 amp. just sum them on a copper binding postthe cable connections are already made as you can see from the photos and the cables already cut and insulated.
I would like to know now what I should do to secure everything.
and what is the sufficient power required to put an amplifier and a sub + 2 speakers
there are 2 lines at 12v with different amperage (+ 12V1DC-8A or + 12V2DC-14A)
where is it better to connect the radio by choosing between the two?
how I identify the two 12V lines since the yellow cable is 12V and the black one is the ground
it shows yellow as 8 amp and yellow\blk as 14 ampthere are no yellow / black wires
there are only yellow wires
I got a yellow one like + 12v and a black one that is the ground
at this point I do not know what are at 8A and 14A
how to distinguish them?
i dont understand this: "just sum them on a copper binding post"
what is the sufficient power required to put an amplifier and a sub + 2 speakers?( this is my first question)
i know youve said it several times, but the diagram on your psu says there is one. so youre either missing it, the sticker is lying or the black on the yellow wire has worn off. do you have a dmm?There are no yellow cables with the black stripe and I've said it several times
and even the images speak for themselves
you are rightyoudoofus said:i know youve said it several times, but the diagram on your psu says there is one. so youre either missing it, the sticker is lying or the black on the yellow wire has worn off. do you have a dmm?
What should I measure to identify the cables?you are right
it may be that it is consummated and I do not see it or see it only yellow
yes I have a DMM
I did not understand how to use the dmm in amperage to measure the current on 12vWhat should I measure to identify the cables?
just find all the 12v ones and combine them
how do I put the psu in safety?
Do I have to connect the frame with a cable to the ground or do I have to put it in a wooden box?
no, it will provide the sufficient ground it needs inherently by the inverter based on the + voltage it outputs.
if I connect the 2 cables with different amperage and their sum gives me about 22A after I have to put a bigger type 1.5 or 2.5 mm cable?
sum them as close as you can you the PSU, and use a bigger cable from there to connect your stuff
the fuse higher than 22A?
the total output will be 22a based on the diagram on the PSU
I did not understand how to use the dmm in amperage to measure the current on 12vI did not understand how to use the dmm in amperage to measure the current on 12v
joining all the yellow cables I could not distinguish them
if I join the yellow cables of what should be the cable in mm or AWG?
on this larger cable the fuse than it should be? since I get 22A
the fuse must be greater than 22A? how much? the diagram of the psu I do not have it
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