Dual PSU's powering car subwoofer

[Vatablous]

I have a 1000w rms (peak 1400w) car sub that i want to power indoors. I've seen people power them with desktop PSU's. 

My question is, as 1400w PSU's are expensive, can I / how could I run 2 750w PSU's in parallel, as they are significantly cheaper?

 

or rather, if this is a terrible idea, would I be able to use a server psu instead? (if anyone knows anything about server psu's please lmk how I would connect it)

[Stormseeker9]

Why not get an amplifier (need one anyway) and wire it all to the CSR / car battery?

 

thats what I had done with my car. Never heard about the PSU way

[LWM723]

That's 1400 watts RMS It's not 12volts 1400 watts. RMS in speaker means, power refers to how much continuous power the speaker can handle.

[mariushm]

No, you can't parallel the power supplies.

Your audio amplifier takes in 10...14v from the car's battery / alternator and boosts it to maybe 80-100v inside and that's how it drives that subwoofer.

 

You can buy server power supplies for cheap, for example here's Supermicro 1280w 1U server power supply for $49 + shipping :  https://unixsurplus.com/supermicro-pws1k28p-sq-psu/

 

The pinout is here (2nd, with 23 pins) : https://www.eevblog.com/forum/projects/supermicro-psu-pinout/

To start it up, it should be enough to short the /POn pin (pin 8) to ground (ex pin 30, 24, 25 etc), maybe through a small value resistor (ex 100 ohm) resistor if you want to be nice about it

[Vatablous]

3 hours ago, Stormseeker9 said:

Why not get an amplifier (need one anyway) and wire it all to the CSR / car battery?

 

thats what I had done with my car. Never heard about the PSU way

I have it currently in my car, however want to be able to use it in my house as well

[Vatablous]

3 hours ago, mariushm said:

No, you can't parallel the power supplies.

Your audio amplifier takes in 10...14v from the car's battery / alternator and boosts it to maybe 80-100v inside and that's how it drives that subwoofer.

 

You can buy server power supplies for cheap, for example here's Supermicro 1280w 1U server power supply for $49 + shipping :  https://unixsurplus.com/supermicro-pws1k28p-sq-psu/

 

The pinout is here (2nd, with 23 pins) : https://www.eevblog.com/forum/projects/supermicro-psu-pinout/

To start it up, it should be enough to short the /POn pin (pin 8) to ground (ex pin 30, 24, 25 etc), maybe through a small value resistor (ex 100 ohm) resistor if you want to be nice about it

Thank you, this is the conclusion I came to, however was not sure what type of server psu to get. 

Thanks for your input

[Stormseeker9]

20 hours ago, Vatablous said:

I have it currently in my car, however want to be able to use it in my house as well

The Subwoofer? No idea my friend - Mine was all hard wired into the car aftermarket. 

 

I think youll still need an amplifier/surround sound system in your house to connect your sub to it.