car head unit and amp in home

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mp2031

Member - Posts: 7

Joined: July 22, 2008

Location: Australia

Posted: July 23, 2008 at 7:25 PM / IP Logged

has anyone here done this kind of thing ? , as i would like to get a more suitable power supply for this maybe something that can put out around 1000w with no trouble

Miles

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advanced_audio

Copper - Posts: 170

Joined: July 07, 2006

Location: United States

Posted: July 23, 2008 at 7:29 PM / IP Logged

Is it fused? If so what size fuses are in there?

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haemphyst

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Joined: January 19, 2003

Location: Michigan, Bouvet Island

Posted: July 24, 2008 at 10:28 PM / IP Logged

If you want to run 1000 watts of amplifier power, then you need 2000 watts of power supply. While that is not a hard and fast number, it is a good rule of thumb.

2000\13.8=145A

That's a HUGE power supply. I have a 100A power supply in my garage, and it is welded to a 4 wheeled cart. It weighs somewhere in the vicinity of 175 pounds!

It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

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mp2031

Member - Posts: 7

Joined: July 22, 2008

Location: Australia

Posted: July 24, 2008 at 10:43 PM / IP Logged

oh yeah i see , can i use 2x13.8v1000w power supplys ? or will this not work ?

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haemphyst

Platinum - Posts: 5,054

Joined: January 19, 2003

Location: Michigan, Bouvet Island

Posted: July 24, 2008 at 11:43 PM / IP Logged

Analog (meaning big, heavy) power supplies don't care about their outputs being paralleled. No issues with doing that.

Switch-mode power supplies... Ummm... not so much. Before you try to parallel those, check to be ABSOLUTELY CERTAIN it can be done.

It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

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mp2031

Member - Posts: 7

Joined: July 22, 2008

Location: Australia

Posted: July 25, 2008 at 7:19 PM / IP Logged

ok , im getting a tailor made power supply @ 2000w 13.8 v Dc 145 amps ,

i will let you know how it goes .

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car head unit and amp in home

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