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In home car audio sets.

Tags:
  • Pro Audio
  • Power Supplies
  • Audio
  • Speakers
  • Power
Last response: in Home Audio
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June 17, 2009 4:53:49 PM

Hi ,


I want to run a 700 w sub and 2x 250w speakers , on a Powervox AS-5100 2900 Watt 5 Channel Car Audio Power Amplifier . It`s an in home so am wondering what power supply i could safetly use off a 240v ac main .

I hear pcu 12v supplies work best for this , though i am unsure as to the workings of wattages and amperes required .

The amp has 2 x 30 amp fuses . Are these equivalent to 60 amps requirement of power . Ie , does the power supply have to be specifically providing only 60 ampere and which power supply will do this.

Can you configure speakers and a sub with less power requirement than the aplifier provides or will this damage them.

would you be able to tell me the correct and safest wattage and ampere setup for this please , and which power supply you would recomend , even if some DIY is required for CPU power supply.

I am havin subby withrawrals !!!!!!!! Anyone !!! :>

More about : home car audio sets

June 18, 2009 4:04:45 AM

Why run car audio in your room? Home audio would work just fine without needing any sort of funny setup or anything like that (and believe me, you can get a decent quantity of bass if you want it).
June 21, 2009 4:03:32 AM

Frankii said:
I want to run a 700 w sub and 2x 250w speakers , on a Powervox AS-5100 2900 Watt 5 Channel Car Audio Power Amplifier . It`s an in home so am wondering what power supply i could safetly use off a 240v ac main .
High current output amp at that price is not worth spending on such power supply unit. Around $500 for such power supply.

Frankii said:
The amp has 2 x 30 amp fuses . Are these equivalent to 60 amps requirement of power . Ie , does the power supply have to be specifically providing only 60 ampere and which power supply will do this.
Unfortunately even these PSUs single rail is not powerful enough for your amp:
http://www.silverstonetek.com/products/p_spec.php?pno=S...
http://www.silverstonetek.com/products/p_spec.php?pno=d...
http://www.silverstonetek.com/products/p_spec.php?pno=S...

Remember to add filtering system so you wont here hum or static when playing.

Frankii said:
Can you configure speakers and a sub with less power requirement than the aplifier provides or will this damage them.
Speakers have fix ratings and only way to do that is to not play the music loud or get a high efficient amp (low current high output).

Frankii said:
would you be able to tell me the correct and safest wattage and ampere setup for this please , and which power supply you would recomend , even if some DIY is required for CPU power supply.
This go back to my first comment; DIY will require great knowledge of electronics for such application. best is like cjl suggested, get a home appliance amplifier/reciever.

Frankii said:
I am havin subby withrawrals !!!!!!!!
Note: Such project should not be taken lightly. A unit with such current even in low voltage will do a serious harm so be careful if you need to proceed with your project. <Example> A capacitor that needs to filter might exploded if not handled correctly and you need more than one capacitor for this application.

Besides your Sub sould not need such power since even a 350W amp (depending on thier quality) will be enough to provide 70-80 percent of that sub can handle. You'll need that extra room for the peak output anyway so you won't ruin your equipment.




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June 26, 2009 10:04:49 PM

First of all that amp is not even close to being capable of producing 2900 watts of power. I am sure it does not use CEA specs which basically means they could call it a 10,000 watt amp if they wanted to. Never trust a brand name 99.9% of people don't know. Ohms law shows us that 60A x 14.4V = 864 Watts. That amp won't power those speakers well in a car.

Like everybody else said, power supplies are very expensive. You could probably go to Kinetik dealer (a very well known manufacturer of car batteries) and get a 100A supply for somewhere around $400. Then you would need to have a bunch of extra wiring to get the job done as well. Besides the fact that car audio equipment is extremely inefficient compared to home audio equipment because the consumers seem to think it's only good if it handles a million watts of power in a car and they don't understand that an efficient system with less power is actually better.

If you must, I would get a power supply that is around 80-100A. But don't say we didn't warn you. I would just get a home amplifier.
June 28, 2009 2:56:48 AM

I couldn't get my browser work first time I tried getting info about this product so I went with the given specs. 'Couldn't even edit my post before, anyhow, the 2900 watts is P.M.P.O and all specs given were "Peak Power" so RMS of 350 Watts over 4 channels is 247 Watts and if this amplifier is linear then it would make it at 60% efficient totalling 148 watts per channel.

Still 247 watts a requirement is needed therefore a current of 40 amps @ 12 is good enough for the system, making this unit: http://www.silverstonetek.com/products/p_spec.php?pno=d... a promising candidate. I'm not sure if this how many rails this 90A is shared though.

If you can find a transformer that has 14.5 VDC with 35 Ampere would be good enough for that amp and here how that capacitor looks like if capacitor is needed. http://www.ave99.com/car%2Baudio%2Bcapacitor/
!