Thanks for this a question how do I reduce the screeching sound from the power supply when I switch off

I don't think it's gonna handle 300w very good. Use 200w amplifiers to be safe or get a 12v battery instead, better and safer

You need a bigger psu, they make some that go up to 1500 watts. You would have to run 2

12v amps are always listed on the sticker on back.usually No need for estimating

Provo Beast Audio Installation I am not using high power amps but I am using a 23 amp power supply and had no issue in the 2 years of use its had

should be fine computers dont use full power from power supplys so

in theory its possible, but it can burn your wires so its not safe

Use 4 black wire and 4 yellow wire

Tomas Kuruc I just bought a thermaltake sp-850m for a jl360/2. Amp uses a 50amp fuse. The psu is 70a/840watt on single 12v. Would I still need a dummy load on the 5v and 3.3. I purposely got a bigger psu that is also an 80plus bronze to help with heat and efficiency as I need this amp to run at least at 80% load,bridged which will be between 280-360 watts. And this needs to run for a minimum of 5hrs at this load. So I know the basics which is adding all yellow, black and putting green/black. Now what I need help with is efficiency, and stable load. So if that requires dummy resisters etc and where, please shed light or find me a video of someone doing exactly this cause all these video sick cause they never show the system working or if they do, at what volume to let me know it's stable

that all depends, check the actual voltage on 12V rail while the amp is in load, if it doesn't fall below 11,5V, you're all good, if it does, just connect a couple of car bulbs (in parallel) to the 5V rail (red). That PSU has a strong 12V rail and is quite modern, so it might not even have the type of regulation that's used on cheap PSUs.

Please simplify didnt understand..what is 5 v rail

U could use onley one

No u wrong. Please learn electronic. The voltage is still the same just increase the current. But u can't combine all of them cause it have different current output. If u device draw more current then the one with lower current output will burn the ic inside the psu.

12v switch

any type of off and on switch you could find some in auto zone for abt $3+ or at walmart

some require to see a load on the 5v rail to stay on...light bulb 10 watt resistor etc. Some have 'sense' wires monitoring voltage connected at 21 pin connector. If you see different colored wires going to same pin these should remain connected together. ie mine had a brown wire connected to orange 3v pin and a pink wire to red 5v pin.

Your power supply should have at least 150w of headroom more than your amplifier. Your subwoofer works at low volume because you aren't asking much from the power supply, but once you give it a higher load the thing craps out because it is no where near powerful enough to support your amplifier.

Hi, your amp in the real world won't be putting out 2500 watt. You need to know the rms wattage.that usually will be quite a bit lower. Also you need to make sure that any psu you use has adequate amp rating which is the same or better still slightly higher than your amplifier. Check this by simply checking fuses on you amplifier. I would have thought a psu of say 750w minimum with a amp rating of say 60amp would be plenty powerful enough.

I'm here looking for that same answer also :'(

Justin Chan no u can't it will not do anything to the amps

dwayne Wilcott so what u mean is if i use two amps it won't work or??

wiring 2 power supplies with different amps won't give u a higher amp count. your best bet is to find a power supply that has the right power and amps u need. I use 2 power supplies to do my boombox one to run my CD player and lights and another power supply just for my sub

dwayne Wilcott oh im currently running my car stereo on a gamecube power supply and it works fine. But i guess I'll just use one computer psu for my amp that I'm gonna buy soon.

@All in One can we run 10inch bass on smps

Rip bt speakers lol

Ive thought about doing this, the power wire got a short on one of my bt board gonna hard wire it and do just that

I did the same thing It was a jbl extreme 2, I took the tweeters and hooked it up to 2 12 inch kickers with the 2 tweeters on the bottom of the box

Yes

Generally .. SUV batteries are 80-90 Ah - 12V . 12 x 80 = 960 watts.There is no problem . If we connect it in to a heavy truck battery (150 Ah ) 150Ah x 12v =1800w there is also no problem with the car audio we know ! In my point of view computer power supply output which we are using is a pure DC as like from battery source. So no need to panic..!

I think you should learn the difference between A and Ah. Saying that a 80 Ah battery is 960W is... well totall nonsense. The 80Ah battery specification meand that the battery has 80Ah capacity. It means that a battery can supply 80A for one hour. Example: if you have a device that uses 10A 12V (120W), the battery will be dead in 8 hours. If you have a device that uses 40A 12V (480W) then the battery will be dead in 2 hours. Calculating Ah x V is.. nonsense.

Some atx power supplies will shut off after a while if no load is detected. Try putting a 1A load on the 5V rail. A 5 ohm power resistor should do the trick, just make sure its rated for at least 5W

I ordered an older type of power supply and it is working but I have two power supply now lol anyway I will try the resistor trick. I hope it will be working. Thank you for your advice. :)

The problem (at your side) is with the positive and negative connection with the amp! You have connected positive 12v wire of PSU with negative 12v wire of the amp. Connect positive with positive and negative with negative and your problem will be solved. PSU turns itself off when it senses the improper connection. It's a safety measure built into it.

the problem is that the psu have an over current/over voltage protection that cut the power when it exceed the current limit imposed by the psu. it is possible to bypass those protection by buying some circuit board sold on internet for about 5-25$

WHAAAAT 750W PSU IS BOOOOM GONE?

Was it bronze 80+ quality psu

this is real review

Let me ask you something,lets say you had a amp and a car stereo and a speaker and you just wanted to check and see if everything works,could you hook it up to a car battery for lets say a couple of minutes? not permanent,just to see if everything is OK? thank you for your time.

@@dntlss you would have to make a simple 12v switch for the amplifier. I dont know about the stereo but i know u can connect an amplifier to a car battery. Exocontralto does it all the time

Too low amperage I presume or you didn't run power to the remote on

mehdi Moro there is a key difference between power ratings in car audio and computer components. In computer applications, the psu you own will put out 220w, maybe 250w MAX to give some headroom in the event of power spike. In audio applications power is measured in rms or root mean squared. You should look up the difference between measuring at peak and rms, but if you tried driving your amp with that psu you would blow it up before you get to half volume.

A good rule to follow when re-using a pc power supply, Look at the AMPS Fuses. You need at least this much amperage on the Power Supply 12V rail(s). For example : If you AMP has 2 x 20A fuses you should at least have 40A of power on the 12V rails. If you had say 42A on your Power supply, It would work but I would not run it hard for very long as the power supply will not last very long pulling max. amps. It would be better to have 50% or more amps to spare. I think doing this will end in tears in days to months as best. Better to just buy a fosi audio BL10C AMP for $45.

@@baileyrosmarin1077 Thank you for your help. I have abandoned that project. Too much risk and the results may not be what im expecting

@@stevengoelzer Thank you for the advice I really don't know shit about electricity and i stayed away my whole life from it . Not gonna start fuckin around now lol as you said. . it's better for me to buy a factory made speakers or boombox... 😊

0:09 you can read that

Nope...actually you cant drive any power amp. With that

Pikelet747 yeah

No, you'd need a 3500+ watt PSU

Then u need to combine 7 psu 7x500w.😁

o dont think so try running them in separate power sources

Yes it will work,but your taking a bit of power away from the amp,you would also want to fuse them separately that way. Use the PSU to power the amp and use a 12v wall adapter to power the head unit

GND = ground > Black color

Airmack Tyree yes

what resistor value is recommended for that?

DerTechnikKanal Google Tradutor

Never used a dummy load for this. The 12V was always stable. I used this power supply in my workshop for years... and never had problems.

@@trei2unu 1 ohm 20w

look at the max continuous. on the PSU used in the video it is 350 watts. My power supply in my computer is 550, and they make all the way up past 2000 watts

do you need 12v and 19amps or less? SURE WHY NOT?

No, you need 12v.

You burn your sub

yes :) it would be disaster if you put 12 volt on 5 volt device