Amplifier -- Sub -- PSU -- Speakers

[youdoofus]

There are no yellow cables with the black stripe and I've said it several times
and even the images speak for themselves

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?

 

[varano_ohms]

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?

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

What should I measure to identify the cables?

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?

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?

the fuse higher than 22A?

Thanks

 

[youdoofus]

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

Thanks

What should I measure to identify the cables?

just find all the 12v ones and combine them

how do I put the psu in safety?

huh?

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

 

[varano_ohms]

What should I measure to identify the cables?

just find all the 12v ones and combine them

how do I put the psu in safety?

huh?

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 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

 

[youdoofus]

I 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

I 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

you dont use a DMM to measure amperage, you use a clamp meter like this https://www.amazon.com/Fluke-323-True-RMS-Clamp-Meter/dp/B00AQKIEXY/ref=asc_df_B00AQKIEXY/?tag=hyprod-20&linkCode=df0&hvadid=312167987195&hvpos=1o1&hvnetw=g&hvrand=8862005689326562957&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9017953&hvtargid=pla-439349889262&psc=1

this one is pretty expensive, and you can get one for around $25 but for what youre doing, it shouldnt be necessary. Just know that the 14 + 8 amps will equal 22 amps of max output

if I join the yellow cables of what should be the cable in mm or AWG?

 What? from where you join them to what youre connecting them to? if thats what youre asking, 8 awg should do it plenty fine

on this larger cable the fuse than it should be? since I get 22A

fuse it at 20 to be safe, but 25 will very likely be fine as well. id fuse it at 25 personally

the fuse must be greater than 22A? how much? the diagram of the psu I do not have it

the fuse should be at a level that prevents amperage higher than what you want to be thrown at your equipment to be. in this case, it would mainly be to prevent a amperage spike if the PSU goes out and spikes temporarily

 

[varano_ohms]

i have only a dmm

it's a typo . i want say "connecting" the wires.

thanks

 

[varano_ohms]

I have identified the two + 12V cables with the DMM now I know which ones are at 8A and at 14 A
to power the radio I'm using + 12V 8A
are they enough or should I use the 14A one?
(at the moment the radio turns on and it works)

so you need to connect all the yellow cables and then put a 25A fuse with an AWG8 cable?
(since for the radio it is sufficient to use the 8A one)
if I connect the yellow cables the power supply to the radio must come from the biggest cable AWG8?

the other cables (red, black) I have to connect them together or I leave them free?

connecting the various yellow + 12V cables I would not have the sum of currents above 22A since each cable carries respectively 8A and 14A
(example sum 4 yellow cables all from 14A I get 14Ax4 = 56A)